message stringlengths 2 28.7k | message_type stringclasses 2 values | message_id int64 0 1 | conversation_id int64 21 109k | cluster float64 7 7 | __index_level_0__ int64 42 217k |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image> | instruction | 0 | 22,405 | 7 | 44,810 |
"Correct Solution:
```
input()
print(int(input()[::-1].translate(str.maketrans('RB', '01')), 2))
# print(int(input()[::-1].replace('R', '0').replace('B', '1'), 2))
# print(int(''.join(list(map(lambda x: '0' if x == 'R' else '1', input()[::-1]))), 2))
``` | output | 1 | 22,405 | 7 | 44,811 |
Provide a correct Python 3 solution for this coding contest problem.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image> | instruction | 0 | 22,406 | 7 | 44,812 |
"Correct Solution:
```
# def calculate(n, s):
# c = 0
# while "B" in s:
# while s[0] == "R":
# s = s[1:]
#
# if s[0] == "B":
# s = "R" + s[1:]
#
# while len(s) != n:
# s = "B" + s
#
# c += 1
#
# return c
def calculate(n, s):
c = 0
for i in range(len(s)):
if s[i] == "B":
c += pow(2,i)
return c
n = input()
s = input()
print(calculate(int(n), s))
``` | output | 1 | 22,406 | 7 | 44,813 |
Provide a correct Python 3 solution for this coding contest problem.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image> | instruction | 0 | 22,407 | 7 | 44,814 |
"Correct Solution:
```
s = input()
#s = "5"
n = int(s)
s = input()
#s = "RBBRR"
x = s
ans = 0
for i in range(0, n):
if x[i] == 'B':
ans += 1 << i
print(ans)
``` | output | 1 | 22,407 | 7 | 44,815 |
Provide a correct Python 3 solution for this coding contest problem.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image> | instruction | 0 | 22,408 | 7 | 44,816 |
"Correct Solution:
```
print(2 ** int(input()) - int(''.join(list(map(lambda x: '1' if x == 'R' else '0', input()[::-1]))), 2) - 1)
``` | output | 1 | 22,408 | 7 | 44,817 |
Provide a correct Python 3 solution for this coding contest problem.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image> | instruction | 0 | 22,409 | 7 | 44,818 |
"Correct Solution:
```
size = int(input())
stack = list(input())
print(sum([2 ** i for i in range(size) if stack[i] == 'B']))
``` | output | 1 | 22,409 | 7 | 44,819 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
s = input().strip()
ans = 0
for i in range(len(s)):
if s[i] == "B":
ans += 2 ** i
print(ans)
``` | instruction | 0 | 22,410 | 7 | 44,820 |
Yes | output | 1 | 22,410 | 7 | 44,821 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
def solve(stack):
return sum([2 ** i for i, c in enumerate(stack) if c == 'B'])
def main():
_ = int(input())
stack = input()
print(solve(stack))
if __name__ == '__main__':
main()
``` | instruction | 0 | 22,411 | 7 | 44,822 |
Yes | output | 1 | 22,411 | 7 | 44,823 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
s = input().split()[0]
res = 0
for i in range(len(s)):
if s[i] == 'B':
res += 2**i
print(res)
``` | instruction | 0 | 22,412 | 7 | 44,824 |
Yes | output | 1 | 22,412 | 7 | 44,825 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
length, string = int(input()), input()
print(sum([2 ** i if string[i] == "B" else 0 for i in range(len(string))]))
``` | instruction | 0 | 22,413 | 7 | 44,826 |
Yes | output | 1 | 22,413 | 7 | 44,827 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
str = input()
if(n==5):
print('6')
else:
stack = []
for i in range(n):
stack.append(str[i])
sum = 0
while(stack.count('B')>0):
sum+=1
i = n-1
while(stack[i]=='R'):
del stack[i]
i-=1
stack[i]='R'
while(len(stack)!=n):
stack.append('B')
print(sum)
``` | instruction | 0 | 22,414 | 7 | 44,828 |
No | output | 1 | 22,414 | 7 | 44,829 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
s = input()
res = 0
l1 = [1]
l2 = [1]
res = 0
for i in range(1,n):
l1.append(l2[i-1]+1)
l2.append(l2[i-1]+l1[i])
if(s[i-1] == 'B'):
res += l1[i-1]
#print(l1)
print(res)
``` | instruction | 0 | 22,415 | 7 | 44,830 |
No | output | 1 | 22,415 | 7 | 44,831 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
str = input()
stack = []
for i in range(n):
stack.append(str[i])
sum = 0
while(stack.count('B')>0):
sum+=1
i = n-1
while(stack[i]=='R'):
del stack[i]
i-=1
stack[i]='R'
while(len(stack)!=n):
stack.append('B')
print(sum)
``` | instruction | 0 | 22,416 | 7 | 44,832 |
No | output | 1 | 22,416 | 7 | 44,833 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
User ainta has a stack of n red and blue balls. He can apply a certain operation which changes the colors of the balls inside the stack.
* While the top ball inside the stack is red, pop the ball from the top of the stack.
* Then replace the blue ball on the top with a red ball.
* And finally push some blue balls to the stack until the stack has total of n balls inside.
If there are no blue balls inside the stack, ainta can't apply this operation. Given the initial state of the stack, ainta wants to know the maximum number of operations he can repeatedly apply.
Input
The first line contains an integer n (1 ≤ n ≤ 50) — the number of balls inside the stack.
The second line contains a string s (|s| = n) describing the initial state of the stack. The i-th character of the string s denotes the color of the i-th ball (we'll number the balls from top to bottom of the stack). If the character is "R", the color is red. If the character is "B", the color is blue.
Output
Print the maximum number of operations ainta can repeatedly apply.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3
RBR
Output
2
Input
4
RBBR
Output
6
Input
5
RBBRR
Output
6
Note
The first example is depicted below.
The explanation how user ainta applies the first operation. He pops out one red ball, changes the color of the ball in the middle from blue to red, and pushes one blue ball.
<image>
The explanation how user ainta applies the second operation. He will not pop out red balls, he simply changes the color of the ball on the top from blue to red.
<image>
From now on, ainta can't apply any operation because there are no blue balls inside the stack. ainta applied two operations, so the answer is 2.
The second example is depicted below. The blue arrow denotes a single operation.
<image>
Submitted Solution:
```
n = int(input())
s = input().strip()
op_cnt = 0
while s.find('B') >= 0:
while s[0] == 'R':
s = s[1:]
#print(s)
if s[0] == 'B':
s = 'R' + s[1:]
#print(s)
if len(s) < n:
s = 'B'*(n-len(s)) + s
#print(s)
op_cnt += 1
if op_cnt > 8: break
print(op_cnt)
``` | instruction | 0 | 22,417 | 7 | 44,834 |
No | output | 1 | 22,417 | 7 | 44,835 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,618 | 7 | 45,236 |
"Correct Solution:
```
h, w, k = map(int, input().split())
S = [[int(s) for s in list(input())] for i in range(h)]
ans = 10**4
for b in range(2**(h-1)):
cnt = bin(b).count('1')
B = format(b, 'b').zfill(h-1)+'1'
T = [[0]*w for i in range(cnt+1)]
for j in range(w):
t, c = 0, 0
for i in range(h):
t += S[i][j]
if B[i] == '1':
T[c][j] += t
t = 0
c += 1
if max([max(T[i]) for i in range(cnt+1)]) > k:
continue
A = [T[i][0] for i in range(cnt+1)]
tmp = cnt
for j in range(1, w):
A = [A[i]+T[i][j] for i in range(cnt+1)]
if any([a > k for a in A]):
A = [T[i][j] for i in range(cnt+1)]
tmp += 1
ans = min(ans, tmp)
print(ans)
``` | output | 1 | 22,618 | 7 | 45,237 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,619 | 7 | 45,238 |
"Correct Solution:
```
import itertools
h, w, k = map(int, input().split())
a = []
for i in range(h):
s = input()
a.append(s)
s = [[0 for i in range(w)] for i in range(h)]
ans = h+w
for grid in itertools.product([0,1], repeat=h-1):
ary = [[0]]
for i in range(h-1):
if grid[i] == 1:
ary.append([i+1])
else:
ary[-1].append(i+1)
# print (grid, ary)
wk = 0
for i in grid:
if i == 1:
wk += 1
# print (wk)
cnt = [0] * len(ary)
for j in range(w):
for ii, g in enumerate(ary):
for b in g:
if a[b][j] == '1':
cnt[ii] += 1
if any(W > k for W in cnt):
wk += 1
cnt = [0] * len(ary)
for ii, g in enumerate(ary):
for jj in g:
if a[jj][j] == '1':
cnt[ii] += 1
if any(W > k for W in cnt):
wk = h+w
break
ans = min(ans, wk)
print (ans)
``` | output | 1 | 22,619 | 7 | 45,239 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,620 | 7 | 45,240 |
"Correct Solution:
```
from collections import defaultdict
from itertools import product
H, W, K = map(int, input().split())
S = [input() for _ in range(H)]
i = 0
while i < len(S):
if '1' in S[i]:
i += 1
else:
del S[i]
H = len(S)
C = [[int(s[i]) for s in S] for i in range(W)]
total = sum(sum(c) for c in C)
if total <= K:
answer = 0
else:
answer = H * W
for X in product([False, True], repeat=H-1):
ans = sum(X)
if ans > answer:
continue
M = [[0]]
for i, x in enumerate(X):
if x:
M.append([])
M[-1].append(i+1)
D = [0] * len(M)
for c in C:
for k, m in enumerate(M):
D[k] += sum(c[i] for i in m)
if any(d > K for d in D):
ans += 1
if ans > answer:
break
D = [sum(c[i] for i in m) for m in M]
if any(d > K for d in D):
ans = answer + 1
break
answer = min(answer, ans)
print(answer)
``` | output | 1 | 22,620 | 7 | 45,241 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,621 | 7 | 45,242 |
"Correct Solution:
```
h, w, k = map(int, input().split())
S = [list(map(int, list(input()))) for _ in range(h)]
ans = float("inf")
for i in range(2**(h-1)):
L = [0]
cnt = 0
for j in range(h-1):
if i>>j & 1:
L.append(j+1)
cnt += 1
L.append(h)
C = [0]*(len(L)-1)
for j in range(w):
D = [0]*(len(L)-1)
for l in range(len(L)-1):
a, b = L[l], L[l+1]
for s in range(a, b):
D[l] += S[s][j]
if max(D) > k:
break
for l, d in enumerate(D):
if C[l]+d > k:
break
else:
for l, d in enumerate(D):
C[l] += d
continue
cnt += 1
for l, d in enumerate(D):
C[l] = d
else:
ans = min(ans, cnt)
print(ans)
``` | output | 1 | 22,621 | 7 | 45,243 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,622 | 7 | 45,244 |
"Correct Solution:
```
H,W,K = map(int,input().split())
S = [list(map(int,input())) for _ in [0]*H]
ans = H*W
S2 = [[0]*(W+1) for _ in [0]*(H+1)]
for i in range(H):
for j in range(W):
S2[i+1][j+1] = S2[i][j+1] + S[i][j]
for i in range(1,H+1):
for j in range(W):
S2[i][j+1] += S2[i][j]
for i in range(1<<(H-1)):
check = [0]+[j+1 for j in range(H-1) if i>>j&1]+[H]
cnt = len(check)-2
l = 0
r = 1
while r<=W:
for j,k in zip(check[:-1],check[1:]):
if S2[j][l] + S2[k][r] - S2[j][r] - S2[k][l] > K:
if r==l+1:
cnt += H*W
r = W+1
break
cnt += 1
l = r-1
r = r
break
else:
r += 1
ans = min(ans,cnt)
print(ans)
``` | output | 1 | 22,622 | 7 | 45,245 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,623 | 7 | 45,246 |
"Correct Solution:
```
H,W,K=map(int,input().split())
S=[list(map(int,list(input()))) for i in range(H)]
ans=H+W-2
for bit in range(2**(H-1)):
divH=[0]
for j in range(H-1):
if(bit>>j&1):
divH.append(j+1)
divH.append(H)
glen=len(divH)-1
group=[0]*(glen)
res=glen-1
go=True
w=0
while w<W:
ok=True
c=[0]*(glen)
for g in range(glen):
cum=0
for h in range(divH[g],divH[g+1]):
cum+=S[h][w]
c[g]+=cum
if cum>K:
go=False
break
if c[g]+group[g]>K:
ok=False
if not go:
break
if not ok:
res+=1
group=[0]*glen
else:
for i in range(glen):
group[i]+=c[i]
w+=1
if not go:
continue
ans=min(ans,res)
print(ans)
``` | output | 1 | 22,623 | 7 | 45,247 |
Provide a correct Python 3 solution for this coding contest problem.
We have a chocolate bar partitioned into H horizontal rows and W vertical columns of squares.
The square (i, j) at the i-th row from the top and the j-th column from the left is dark if S_{i,j} is `0`, and white if S_{i,j} is `1`.
We will cut the bar some number of times to divide it into some number of blocks. In each cut, we cut the whole bar by a line running along some boundaries of squares from end to end of the bar.
How many times do we need to cut the bar so that every block after the cuts has K or less white squares?
Constraints
* 1 \leq H \leq 10
* 1 \leq W \leq 1000
* 1 \leq K \leq H \times W
* S_{i,j} is `0` or `1`.
Input
Input is given from Standard Input in the following format:
H W K
S_{1,1}S_{1,2}...S_{1,W}
:
S_{H,1}S_{H,2}...S_{H,W}
Output
Print the number of minimum times the bar needs to be cut so that every block after the cuts has K or less white squares.
Examples
Input
3 5 4
11100
10001
00111
Output
2
Input
3 5 8
11100
10001
00111
Output
0
Input
4 10 4
1110010010
1000101110
0011101001
1101000111
Output
3 | instruction | 0 | 22,624 | 7 | 45,248 |
"Correct Solution:
```
from itertools import combinations
H, W, K = map(int, input().split())
S = [input() for _ in range(H)]
C = [[0] * (W + 1) for _ in range(H + 1)]
for h in range(H):
wc = 0
for w in range(W):
wc += (S[h][w] == '1')
C[h + 1][w + 1] = C[h][w + 1] + wc
ans = 2000
for cuth in range(H):
for comb in combinations([h for h in range(1, H)], cuth):
comb = [0] + list(comb) + [H]
wi, cutw = 0, 0
for w in range(W):
if max([C[comb[i]][w + 1] - C[comb[i]][wi] - C[comb[i - 1]][w + 1] + C[comb[i - 1]][wi] for i in range(1, len(comb))]) > K:
if wi == w:
cutw = 2000
wi, cutw = w, cutw + 1
ans = min(ans, cuth + cutw)
print(ans)
``` | output | 1 | 22,624 | 7 | 45,249 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,114 | 7 | 46,228 |
Tags: data structures, implementation
Correct Solution:
```
n = int(input())
squares = [ int(x) for x in input().split() ]
result = 0
soma = sum(squares)
if soma % 2 == 0:
parcial = 0
soma //= 2
for i in squares:
parcial += i
if parcial == soma:
result += 1
if parcial == soma:
result -= 1
print(result)
``` | output | 1 | 23,114 | 7 | 46,229 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,115 | 7 | 46,230 |
Tags: data structures, implementation
Correct Solution:
```
n = int(input())
stripes = list(map(int, input().split(" ")))
total = sum(stripes)
leftSum = 0
ways = 0
for i in range(n-1):
leftSum = leftSum + stripes[i]
if(2*leftSum == total):
ways = ways + 1
print(ways)
``` | output | 1 | 23,115 | 7 | 46,231 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,116 | 7 | 46,232 |
Tags: data structures, implementation
Correct Solution:
```
n=int(input())
a = list(map(int, input().strip().split(' ')))
s=sum(a)
k=0
c=0
for i in range(n-1):
k+=a[i]
s-=a[i]
if k==s:
c+=1
print(c)
``` | output | 1 | 23,116 | 7 | 46,233 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,117 | 7 | 46,234 |
Tags: data structures, implementation
Correct Solution:
```
n = int(input())
stripe = list(map(int, input().split()))
count = 0
left = 0
right = sum(stripe)
for s in stripe[:-1]:
left += s
right -= s
if left == right:
count += 1
print(count)
``` | output | 1 | 23,117 | 7 | 46,235 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,118 | 7 | 46,236 |
Tags: data structures, implementation
Correct Solution:
```
n = int(input())
v = list(map(int, input().split()))
s1 = 0
s2 = sum(v)
c = 0
for i in range(n-1):
s1 += v[i]
s2 -= v[i]
if(s1 == s2):
c += 1
print(c)
``` | output | 1 | 23,118 | 7 | 46,237 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,119 | 7 | 46,238 |
Tags: data structures, implementation
Correct Solution:
```
n=eval(input())
temp=input()
a=temp.split()
total=0
temptotal=0
count=0
for i in range(len(a)):
total+=int(a[i])
for i in range(len(a)-1):
temptotal+=int(a[i])
if temptotal*2==total:
count+=1
print(count)
``` | output | 1 | 23,119 | 7 | 46,239 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,120 | 7 | 46,240 |
Tags: data structures, implementation
Correct Solution:
```
from itertools import accumulate, islice
n = int(input())
a = list(map(int, input().split()))
S = sum(a)
print(sum(S == 2*x for x in islice(accumulate(a), n-1)))
``` | output | 1 | 23,120 | 7 | 46,241 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1 | instruction | 0 | 23,121 | 7 | 46,242 |
Tags: data structures, implementation
Correct Solution:
```
n = int(input())
sq = [int(i) for i in input().split(" ")]
ways = 0
soma1anterior = 0
soma2anterior = sum(sq[1:n]) + sq[0]
count = 0
for i in range(0, n - 1):
s1 = soma1anterior + sq[i]
s2 = soma2anterior - sq[i]
if s1 == s2:
ways += 1
soma1anterior = s1
soma2anterior = s2
print(ways)
``` | output | 1 | 23,121 | 7 | 46,243 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
class Stripe:
@staticmethod
def read_input():
num_squares = input('')
numbers = list(map(int, input('').split()))
return numbers
@staticmethod
def run():
left, right = set(), set()
numbers = Stripe.read_input()
sum_left = 0
sum_right = sum(numbers)
num_equals = 0
for i in range(0, len(numbers)-1):
sum_left += numbers[i]
sum_right -= numbers[i]
if sum_left == sum_right: num_equals += 1
print(num_equals)
if __name__ == "__main__":
Stripe.run()
``` | instruction | 0 | 23,122 | 7 | 46,244 |
Yes | output | 1 | 23,122 | 7 | 46,245 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
n=int(input())
c=0
l=[int(i) for i in input().split()]
pre=[0]*(n+1)
for i in range(1,n+1):
pre[i]=pre[i-1]+l[i-1]
for i in range(1,n):
if pre[i]==(pre[n]-pre[i]):
c+=1
print(c)
``` | instruction | 0 | 23,123 | 7 | 46,246 |
Yes | output | 1 | 23,123 | 7 | 46,247 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
import sys,math as mt
I=lambda:list(map(int,input().split()))
n,=I()
l=[0]+I()
ans=0
for i in range(1,n+1):
l[i]+=l[i-1]
tot=l[-1]
for i in range(1,n):
if l[i]==tot-l[i]:
ans+=1
print(ans)
``` | instruction | 0 | 23,124 | 7 | 46,248 |
Yes | output | 1 | 23,124 | 7 | 46,249 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
import os
import sys
from io import BytesIO, IOBase
def main():
pass
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")
def count1(s):
c=0
for i in s:
if(i=='1'):
c+=1
return(c)
def binary(n):
return(bin(n).replace("0b",""))
def decimal(s):
return(int(s,2))
def pow2(n):
p=0
while(n>1):
n//=2
p+=1
return(p)
def isPrime(n):
if(n==1):
return(False)
else:
root=int(n**0.5)
root+=1
for i in range(2,root):
if(n%i==0):
return(False)
return(True)
n=int(input())
l=list(map(int,input().split()))
s=sum(l)
ls=0
a=0
for i in range(0,n-1):
ls+=l[i]
if(ls==s-ls):
a+=1
print(a)
``` | instruction | 0 | 23,125 | 7 | 46,250 |
Yes | output | 1 | 23,125 | 7 | 46,251 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
x = int(input("square"))
y = input("number").split(" ")
z = []
for i in y:
z.append(int(i))
count = 0
for i in range(1,len(z)):
if sum(z[:i])==sum(z[-(len(z)-i):]):
count+=1
print(count)
``` | instruction | 0 | 23,126 | 7 | 46,252 |
No | output | 1 | 23,126 | 7 | 46,253 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
n = int(input())
numbers = []
[numbers.append(int(i)) for i in input().split()]
count, soma = 0, 0
totalSum = sum(numbers)
for i in range(n - 1):
soma = soma + numbers[i]
print(soma)
if soma * 2 == totalSum: count = count + 1
print(count)
``` | instruction | 0 | 23,127 | 7 | 46,254 |
No | output | 1 | 23,127 | 7 | 46,255 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
k = int(input())
sum_array= []
b= 0
for i in input().split():
sum_array.append(b+int(i))
b+= int(i)
max= sum_array[-1]
print(max)
if max % 3 != 0:
print(0)
quit()
i=0
for b in range(1, k):
if sum_array[b-1]* 3== max:
for b1 in range(b+1, k):
if sum_array[b1-1]== 2* sum_array[b-1]: i+= 1
b1+= 1
print(i)
``` | instruction | 0 | 23,128 | 7 | 46,256 |
No | output | 1 | 23,128 | 7 | 46,257 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once Bob took a paper stripe of n squares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negative. He became interested in how many ways exist to cut this stripe into two pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece, and each piece contains positive integer amount of squares. Would you help Bob solve this problem?
Input
The first input line contains integer n (1 ≤ n ≤ 105) — amount of squares in the stripe. The second line contains n space-separated numbers — they are the numbers written in the squares of the stripe. These numbers are integer and do not exceed 10000 in absolute value.
Output
Output the amount of ways to cut the stripe into two non-empty pieces so that the sum of numbers from one piece is equal to the sum of numbers from the other piece. Don't forget that it's allowed to cut the stripe along the squares' borders only.
Examples
Input
9
1 5 -6 7 9 -16 0 -2 2
Output
3
Input
3
1 1 1
Output
0
Input
2
0 0
Output
1
Submitted Solution:
```
k = int(input())
X = []
sum_array= []
b=0
for i in input().strip().split():
X.append(int(i))
b+= int(i)
sum_array.append(b)
max= sum_array[-1]
if max % 3 != 0:
print(0)
quit()
i=0
b=1
while b< (k-1):
b1= b+ 1
if sum_array[b-1]== 0: #sum_left
b+= 1
break
if max / sum_array[b-1]== 3:
while b1< k:
if sum_array[b-1]== (sum_array[b1-1]- sum_array[b-1]): i+= 1
b1+= 1
b+= 1
print(i)
``` | instruction | 0 | 23,129 | 7 | 46,258 |
No | output | 1 | 23,129 | 7 | 46,259 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,724 | 7 | 47,448 |
"Correct Solution:
```
import math
sample1 = [ [0, 0, 0], [0, 0, 255], [0, 255, 0], [0, 255, 255], [255, 0, 0], [255, 0, 255], [255, 255, 0], [255, 255, 255] ]
sample2 = ['black', 'blue', 'lime', 'aqua', 'red', 'fuchsia', 'yellow', 'white']
while True:
color = input()
if color=='0':
break
Color = list(color)
Color.pop(0)
for i in range(6):
if Color[i]=='a':
Color.pop(i)
Color.insert(i,10)
if Color[i]=='b':
Color.pop(i)
Color.insert(i,11)
if Color[i]=='c':
Color.pop(i)
Color.insert(i,12)
if Color[i]=='d':
Color.pop(i)
Color.insert(i,13)
if Color[i]=='e':
Color.pop(i)
Color.insert(i,14)
if Color[i]=='f':
Color.pop(i)
Color.insert(i,15)
R = int(Color[0])*16 + int(Color[1])
G = int(Color[2])*16 + int(Color[3])
B = int(Color[4])*16 + int(Color[5])
D = []
for i in range(8):
d = math.sqrt( (R-sample1[i][0])**2 + (G-sample1[i][1])**2 + (B-sample1[i][2])**2 )
D.append(d)
dmin = min(D)
index = D.index(dmin)
print(sample2[index])
``` | output | 1 | 23,724 | 7 | 47,449 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,725 | 7 | 47,450 |
"Correct Solution:
```
# -*- coding: utf-8 -*-
"""
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0176
"""
import sys
from sys import stdin
from collections import namedtuple
from math import sqrt
input = stdin.readline
color = namedtuple('color', ['name', 'r', 'g', 'b'])
def main(args):
references = [color('black', 0x00, 0x00, 0x00), color('blue', 0x00, 0x00, 0xff), color('lime', 0x00, 0xff, 0x00),
color('aqua', 0x00, 0xff, 0xff), color('red', 0xff, 0x00, 0x00), color('fuchsia', 0xff, 0x00, 0xff),
color('yellow', 0xff, 0xff, 0x00), color('white', 0xff, 0xff, 0xff)]
while True:
data = input().strip()
if data[0] == '0':
break
my_r = int(data[1:3], 16)
my_g = int(data[3:5], 16)
my_b = int(data[5:7], 16)
distances = []
for c in references:
d = sqrt((c.r - my_r)**2 + (c.g - my_g)**2 + (c.b - my_b)**2)
distances.append(d)
closest_distance = min(distances)
closest_color = distances.index(closest_distance)
print(references[closest_color].name)
if __name__ == '__main__':
main(sys.argv[1:])
``` | output | 1 | 23,725 | 7 | 47,451 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,726 | 7 | 47,452 |
"Correct Solution:
```
# Aizu Problem 0176: What Color?
#
import sys, math, os, bisect
# read input:
PYDEV = os.environ.get('PYDEV')
if PYDEV=="True":
sys.stdin = open("sample-input.txt", "rt")
colors = {"black": "#000000", "blue": "#0000ff", "lime": "#00ff00",
"aqua": "#00ffff", "red": "#ff0000", "fuchsia": "#ff00ff",
"yellow": "#ffff00", "white": "#ffffff"}
def distance(cc1, cc2):
r1 = int(cc1[1:3], 16)
r2 = int(cc2[1:3], 16)
g1 = int(cc1[3:5], 16)
g2 = int(cc2[3:5], 16)
b1 = int(cc1[5:], 16)
b2 = int(cc2[5:], 16)
return math.sqrt((r1 - r2)**2 + (g1 - g2)**2 + (b1 - b2)**2)
def get_color(cc):
min_dist = float('Inf')
for color in colors:
dist = distance(cc, colors[color])
if dist < min_dist:
min_dist = dist
best = color
return best
while True:
cc = input().strip()
if cc[0] == '0':
break
print(get_color(cc))
``` | output | 1 | 23,726 | 7 | 47,453 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,727 | 7 | 47,454 |
"Correct Solution:
```
# AOJ 0176: What Color?
# Python3 2018.6.19 bal4u
color = [ \
[ "black", 0, 0, 0 ], \
[ "blue", 0, 0, 0xff ], \
[ "lime", 0, 0xff, 0 ], \
[ "aqua", 0, 0xff, 0xff ], \
[ "red", 0xff, 0, 0 ], \
[ "fuchsia", 0xff, 0, 0xff ], \
[ "yellow", 0xff, 0xff, 0 ], \
[ "white", 0xff, 0xff, 0xff ]]
while True:
a = list(input())
if a[0] == '0': break
r, g, b = int(a[1]+a[2], 16), int(a[3]+a[4], 16), int(a[5]+a[6], 16)
vmin = 3* 0xff**2
for i in color:
d = (r-i[1])**2 + (g-i[2])**2 + (b-i[3])**2
if d < vmin: j, vmin = i, d
print(j[0])
``` | output | 1 | 23,727 | 7 | 47,455 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,728 | 7 | 47,456 |
"Correct Solution:
```
INF = 10 ** 10
dic = {}
for i in range(10):
dic[str(i)] = i
for i in range(ord("a"), ord("f") + 1):
dic[chr(i)] = i - ord("a") + 10
def hex_to_dec(s):
return dic[s[0]] * 16 + dic[s[1]]
colors = [("black", list(map(hex_to_dec, ["00", "00", "00"]))),
("blue", list(map(hex_to_dec, ["00", "00", "ff"]))),
("lime", list(map(hex_to_dec, ["00", "ff", "00"]))),
("aqua", list(map(hex_to_dec, ["00", "ff", "ff"]))),
("red", list(map(hex_to_dec, ["ff", "00", "00"]))),
("fuchsia", list(map(hex_to_dec, ["ff", "00", "ff"]))),
("yellow", list(map(hex_to_dec, ["ff", "ff", "00"]))),
("white", list(map(hex_to_dec, ["ff", "ff", "ff"])))]
while True:
s = input()
if s == "0":
break
r, g, b = map(hex_to_dec, [s[1:3], s[3:5], s[5:7]])
lowest_name = "KUWA"
lowest_score = INF
for name, rgb in colors:
rc, gc, bc = rgb
score = (r - rc) ** 2 + (g - gc) ** 2 + (b - bc) ** 2
if score < lowest_score:
lowest_name, lowest_score = name, score
print(lowest_name)
``` | output | 1 | 23,728 | 7 | 47,457 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,729 | 7 | 47,458 |
"Correct Solution:
```
from collections import OrderedDict
colors = OrderedDict()
colors['black'] = [0, 0, 0]
colors['blue'] = [0, 0, 255]
colors['lime'] = [0, 255, 0]
colors['aqua'] = [0, 255, 255]
colors['red'] = [255, 0, 0]
colors['fuchsia'] = [255, 0, 255]
colors['yellow'] = [255, 255, 0]
colors['white'] = [255, 255, 255]
while True:
color = input()
if color == '0':
break
r, g, b = (int(color[1:3], 16),
int(color[3:5], 16),
int(color[5:7], 16))
near_color = ['', float('inf')]
for k, v in colors.items():
dk = ((v[0] - r) ** 2 +
(v[1] - g) ** 2 +
(v[2] - b) ** 2) ** .5
if dk < near_color[1]:
near_color = [k, dk]
print(near_color[0])
``` | output | 1 | 23,729 | 7 | 47,459 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,730 | 7 | 47,460 |
"Correct Solution:
```
L = [ [ 0, "black", 0, 0, 0 ],
[ 1, "blue", 0, 0, 255 ],
[ 2, "lime", 0, 255, 0 ],
[ 3, "aqua", 0, 255, 255 ],
[ 4, "red", 255, 0, 0 ],
[ 5, "fuchsia", 255, 0, 255 ],
[ 6, "yellow", 255, 255, 0 ],
[ 7, "white", 255, 255, 255 ] ]
while True:
T = []
s = input()
if s == "0":
break
code = []
for i in range(3):
code.append( int(s[1+2*i:3+2*i], 16) )
for i in range(len(L)):
m = 0
for j in range(3):
m += (L[i][2+j] - code[j])**2
T.append( [ L[i][0], m] )
T.sort(key=lambda x: (x[1], x[0]))
print(L[T[0][0]][1])
``` | output | 1 | 23,730 | 7 | 47,461 |
Provide a correct Python 3 solution for this coding contest problem.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia | instruction | 0 | 23,731 | 7 | 47,462 |
"Correct Solution:
```
color = {
'black' : '#000000',
'blue' : '#0000ff',
'lime' : '#00ff00',
'aqua' : '#00ffff',
'red' : '#ff0000',
'fuchsia' : '#ff00ff',
'yellow' : '#ffff00',
'white' : '#ffffff',
}
def list_chunk(arr, n):
return [arr[i:i+3] for i in range(0,15,n)]
def code2rgb(code):
code = code.lstrip('#')
r, g, b = [code[i:i+2] for i in range(0,len(code),2)]
return [int(v, 16) for v in [r, g, b]]
def dk2(a, b):
return sum([(a[i]-b[i])**2 for i in range(0,3)])
while True:
v = input()
if(v is '0'): break
rgb = code2rgb(v)
dks = [dk2(code2rgb(c), rgb) for c in color.values()]
k = list(color.keys())
print(k[dks.index(min(dks))])
``` | output | 1 | 23,731 | 7 | 47,463 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
# -*- coding: utf-8 -*-
"""
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0176
"""
import sys
from sys import stdin
from collections import namedtuple
from math import sqrt
input = stdin.readline
color = namedtuple('color', ['name', 'r', 'g', 'b'])
def main(args):
references = [color('black', 0x00, 0x00, 0x00), color('blue', 0x00, 0x00, 0xff), color('lime', 0x00, 0xff, 0x00),
color('aqua', 0x00, 0xff, 0xff), color('red', 0xff, 0x00, 0x00), color('fuchsia', 0xff, 0x00, 0xff),
color('yellow', 0xff, 0xff, 0x00), color('white', 0xff, 0xff, 0xff)]
while True:
data = input().strip()
if data[0] == '0':
break
my_r = int(data[1:3], 16)
my_g = int(data[3:5], 16)
my_b = int(data[5:7], 16)
# distances = []
# for c in references:
# d = sqrt((c.r - my_r)**2 + (c.g - my_g)**2 + (c.b - my_b)**2)
# distances.append(d)
distances = [((c.r - my_r)**2 + (c.g - my_g)**2 + (c.b - my_b)**2) for c in references]
closest_distance = min(distances)
closest_color = distances.index(closest_distance)
print(references[closest_color].name)
if __name__ == '__main__':
main(sys.argv[1:])
``` | instruction | 0 | 23,732 | 7 | 47,464 |
Yes | output | 1 | 23,732 | 7 | 47,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
import math
while True :
color = [[0, 0, 0], [0, 0, 255], [0, 255, 0], [0, 255, 255],
[255, 0, 0], [255, 0, 255], [255, 255, 0], [255, 255, 255]]
color_16 = input()
if color_16 == "0" :
break
color_R = int(color_16[1] + color_16[2], 16)
color_G = int(color_16[3] + color_16[4], 16)
color_B = int(color_16[5] + color_16[6], 16)
min_d = 500
for i in range(8) :
R = color[i][0]
G = color[i][1]
B = color[i][2]
d = math.sqrt((R - color_R)**2 + (G - color_G)**2 + (B - color_B)**2)
if min_d > d :
min_d = d
color_num = i
if color_num == 0 :
print("black")
elif color_num == 1 :
print("blue")
elif color_num == 2 :
print("lime")
elif color_num == 3 :
print("aqua")
elif color_num == 4 :
print("red")
elif color_num == 5 :
print("fuchsia")
elif color_num == 6 :
print("yellow")
else :
print("white")
``` | instruction | 0 | 23,733 | 7 | 47,466 |
Yes | output | 1 | 23,733 | 7 | 47,467 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
import math
def solve(line):
R = int(line[1:3], 16)
G = int(line[3:5], 16)
B = int(line[5:7], 16)
sa_black = math.sqrt(R**2 + G**2 + B**2)
sa_max = sa_black
ans_color = "black"
sa_blue = math.sqrt(R**2 + G**2 + (B - 255)**2)
if sa_blue < sa_max:
sa_max = sa_blue
ans_color = "blue"
sa_lime = math.sqrt(R**2 + (G - 255)**2 + B**2)
if sa_lime < sa_max:
sa_max = sa_lime
ans_color = "lime"
sa_aqua = math.sqrt(R**2 + (G - 255)**2 + (B - 255)**2)
if sa_aqua < sa_max:
sa_max = sa_aqua
ans_color = "aqua"
sa_red = math.sqrt((R - 255)**2 + G**2 + B**2)
if sa_red < sa_max:
sa_max = sa_red
ans_color = "red"
sa_fuchsia = math.sqrt((R - 255)**2 + G**2 + (B - 255)**2)
if sa_fuchsia < sa_max:
sa_max = sa_fuchsia
ans_color = "fuchsia"
sa_yellow = math.sqrt((R - 255)**2 + (G - 255)**2 + B**2)
if sa_yellow < sa_max:
sa_max = sa_yellow
ans_color = "yellow"
sa_white = math.sqrt((R - 255)**2 + (G - 255)**2 + (B - 255)**2)
if sa_white < sa_max:
sa_max = sa_white
ans_color = "white"
return ans_color
while True:
line = input()
if line == '0': break
print(solve(line))
``` | instruction | 0 | 23,734 | 7 | 47,468 |
Yes | output | 1 | 23,734 | 7 | 47,469 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
color = {
"000000": "black",
"0000ff": "blue",
"00ff00": "lime",
"00ffff": "aqua",
"ff0000": "red",
"ff00ff": "fuchsia",
"ffff00": "yellow",
"ffffff": "white"
}
while True:
n = input()
if n == '0': break
code = ''
for f, s in zip(n[1::2], n[2::2]):
if int(f+s, 16) <= 127:
code += '00'
else:
code += 'ff'
print(color[code])
``` | instruction | 0 | 23,735 | 7 | 47,470 |
Yes | output | 1 | 23,735 | 7 | 47,471 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
# -*- coding: utf-8 -*-
"""
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0176
"""
import sys
from sys import stdin
from collections import namedtuple
from math import sqrt
input = stdin.readline
color = namedtuple('color', ['name', 'r', 'g', 'b'])
def main(args):
references = [color('black', 0x00, 0x00, 0x00), color('blue', 0x00, 0x00, 0xff), color('lime', 0x00, 0xff, 0x00),
color('aqua', 0x00, 0xff, 0xff), color('rea', 0xff, 0x00, 0x00), color('fuchsia', 0xff, 0x00, 0xff),
color('yellow', 0xff, 0xff, 0x00), color('white', 0xff, 0xff, 0xff)]
while True:
data = input().strip()
if data[0] == '0':
break
my_r = int(data[1:3], 16)
my_g = int(data[3:5], 16)
my_b = int(data[5:7], 16)
distances = []
for c in references:
d = sqrt((c.r - my_r)**2 + (c.g - my_g)**2 + (c.b - my_b)**2)
distances.append(d)
closest_distance = min(distances)
closest_color = distances.index(closest_distance)
print(references[closest_color].name)
if __name__ == '__main__':
main(sys.argv[1:])
``` | instruction | 0 | 23,736 | 7 | 47,472 |
No | output | 1 | 23,736 | 7 | 47,473 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Taro, who aims to become a web designer, is currently training. My senior at the office tells me that the background color of this page is # ffe085, which is a color number peculiar to web design, but I can't think of what kind of color it is.
This color number represents the intensity of each of the three primary colors of light, red, green, and blue. Specifically, it is a combination of three 2-digit hexadecimal numbers, and when the color number is “#RGB”, R is the intensity of red, G is the intensity of green, and is the intensity of blue. .. Each value is from 00 to ff.
For Taro who is not familiar with color numbers, please create a program that inputs the color number and outputs the name of the closest color from the color table. The table of colors used is as follows.
| Color name | Red intensity | Green intensity | Blue intensity
--- | --- | --- | --- | ---
| black | 00 | 00 | 00
| blue | 00 | 00 | ff
| lime | 00 | ff | 00
aqua | 00 | ff | ff
| red | ff | 00 | 00
| fuchsia | ff | 00 | ff
| yellow | ff | ff | 00
| white | ff | ff | ff
The "closest color" is defined as follows. When the intensities of red, green, and blue at a given color number are R, G, and B, respectively, and the intensities of red, green, and blue of the kth color in the table are Rk, Gk, and Bk, respectively. The color with the smallest dk value calculated by the following formula is the closest color.
<image>
If there are multiple colors with the same dk value, the color at the top of the table will be the closest color.
Input
A sequence of multiple datasets is given as input. The end of the input is indicated by a single line of zeros. For each dataset, a string representing the color number is given on one line in #RGB format.
The number of datasets does not exceed 1000.
Output
Outputs the name of the closest color for each dataset on one line.
Examples
Input
#ffe085
#787878
#decade
#ff55ff
0
Output
white
black
white
fuchsia
Input
ffe085
787878
decade
ff55ff
0
Output
white
black
white
fuchsia
Submitted Solution:
```
import math
def solve(line):
R = int(line[1:3], 16)
G = int(line[3:5], 16)
B = int(line[5:7], 16)
sa_black = math.sqrt(R**2 + G**2 + B**2)
sa_max = sa_black
ans_color = "black"
sa_blue = math.sqrt(R**2 + G**2 + (B - 255)**2)
if sa_blue < sa_max:
sa_max = sa_blue
ans_color = "blue"
sa_lime = math.sqrt(R**2 + (G - 255)**2 + B**2)
if sa_lime < sa_max:
sa_max = sa_lime
ans_color = "lime"
sa_aqua = math.sqrt(R**2 + (G - 255)**2 + (B - 255)**2)
if sa_aqua < sa_max:
sa_max = sa_aqua
ans_color = "aqua"
sa_red = math.sqrt((R - 255)**2 + G**2 + B**2)
if sa_red < sa_max:
sa_max = sa_red
ans_color = "red"
sa_fuchsia = math.sqrt((R - 255)**2 + G**2 + (B - 255)**2)
if sa_fuchsia < sa_max:
sa_max = sa_fuchsia
ans_color = "fuchsia"
sa_yellow = math.sqrt((R - 255)**2 + (G - 255)**2 + B**2)
if sa_yellow < sa_max:
sa_max = sa_yellow
ans_color = "blue"
sa_white = math.sqrt((R - 255)**2 + (G - 255)**2 + (B - 255)**2)
if sa_white < sa_max:
sa_max = sa_white
ans_color = "white"
return ans_color
while True:
line = input()
if line == '0': break
print(solve(line))
``` | instruction | 0 | 23,737 | 7 | 47,474 |
No | output | 1 | 23,737 | 7 | 47,475 |
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