message stringlengths 2 65.1k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 0 108k | cluster float64 14 14 | __index_level_0__ int64 0 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,720 | 14 | 177,440 |
Tags: combinatorics, math
Correct Solution:
```
s,m,ans=input()[::-1],int(1e9+7),0
for i in range(len(s)):
if s[i]=='1':ans=(ans+pow(2,i,m))%m
print(ans*pow(2,len(s)-1,m)%m)
``` | output | 1 | 88,720 | 14 | 177,441 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,721 | 14 | 177,442 |
Tags: combinatorics, math
Correct Solution:
```
n = input().strip()
s = len(n)
k = int(n,2)
start = 4 **( s-1)
zib = 2**(s-1)
step = 2**(s-1)
print((start+(k-zib)*step)%(10**9+7))
``` | output | 1 | 88,721 | 14 | 177,443 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,722 | 14 | 177,444 |
Tags: combinatorics, math
Correct Solution:
```
#!/usr/bin/env python3
p = 1000000007
s = input()
print(int(s,2) * pow(2, len(s) - 1) % p)
``` | output | 1 | 88,722 | 14 | 177,445 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,723 | 14 | 177,446 |
Tags: combinatorics, math
Correct Solution:
```
p = 1000000007
s = input()
print(int(s,2) * pow(2, len(s) - 1) % p)
``` | output | 1 | 88,723 | 14 | 177,447 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,724 | 14 | 177,448 |
Tags: combinatorics, math
Correct Solution:
```
#t=int(input())
mod = 10**9+7
for _ in range(1):
s=input()
c=1
ans = 0
for i in range(len(s)-1,-1,-1):
ans=(ans+c*int(s[i]))%mod
c=(c*2)%mod
d = pow(2,len(s),mod)
ans=(ans*d)%mod
ans=(ans*pow(2,mod-2,mod))%mod
print(ans)
... | output | 1 | 88,724 | 14 | 177,449 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of M... | instruction | 0 | 88,725 | 14 | 177,450 |
Tags: combinatorics, math
Correct Solution:
```
s = input()
res = pow(2, len(s)-1)*(int(s, 2))
print (res%1000000007)
``` | output | 1 | 88,725 | 14 | 177,451 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,726 | 14 | 177,452 |
Yes | output | 1 | 88,726 | 14 | 177,453 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,727 | 14 | 177,454 |
Yes | output | 1 | 88,727 | 14 | 177,455 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,728 | 14 | 177,456 |
Yes | output | 1 | 88,728 | 14 | 177,457 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,729 | 14 | 177,458 |
Yes | output | 1 | 88,729 | 14 | 177,459 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,730 | 14 | 177,460 |
No | output | 1 | 88,730 | 14 | 177,461 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,731 | 14 | 177,462 |
No | output | 1 | 88,731 | 14 | 177,463 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,732 | 14 | 177,464 |
No | output | 1 | 88,732 | 14 | 177,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia... | instruction | 0 | 88,733 | 14 | 177,466 |
No | output | 1 | 88,733 | 14 | 177,467 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,817 | 14 | 177,634 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n, k = map(int, input().split())
arr = list(map(int, input().split()))
arr = [(arr[i], i) for i in range(n)]
arr.sort()
t = 0
res = []
for i in arr:
res.append(i)
if(sum([i[0] for i in res])>k):
res = res[:-1]
break
if(len(res)==0):
print('0')
else:
... | output | 1 | 88,817 | 14 | 177,635 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,818 | 14 | 177,636 |
Tags: greedy, implementation, sortings
Correct Solution:
```
k, n = map(int,input().split())
temp = input().split()
data = []
i = 1
for item in temp:
data.append([int(item),i])
i += 1
data.sort()
cost = 0
answer = []
for item in data:
if (item[0]+cost)<=n:
cost += item[0]
answer.append(item[... | output | 1 | 88,818 | 14 | 177,637 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,819 | 14 | 177,638 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n,k=map(int,input().split())
l=list(map(int,input().split()))
p=sorted(l)
s=0
a=[]
c=0
for i in range(n):
if(p[i]+s)<=k:
s=s+p[i]
c=c+1
z=l.index(p[i])
a.append(z+1)
l[z]=0
print(c)
print(*a)
``` | output | 1 | 88,819 | 14 | 177,639 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,820 | 14 | 177,640 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n, k = map(int, input().split())
a = [(i, e) for i, e in enumerate(map(int, input().split()))]
a.sort(key=lambda x: x[1])
s, d = 0, []
for i, e in a:
if s + e <= k:
s += e
d.append(i + 1)
else:
break
print(len(d))
for i in d:... | output | 1 | 88,820 | 14 | 177,641 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,821 | 14 | 177,642 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n,k=map(int,input().split())
l=sorted([(x,i) for i,x in enumerate(map(int,input().split()),1)])
s=[]
for i in range(n):
if l[i][0]>k: break
s+=[l[i][1]]
k-=l[i][0]
print(len(s))
print(' '.join(map(str,s)))
``` | output | 1 | 88,821 | 14 | 177,643 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,822 | 14 | 177,644 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n,k = map(int, input().split())
a = input().split()
def ke(n):
return n[1]
for i in range(n):
a[i] = [i,int(a[i])]
a.sort(key=ke)
s = 0
i = 0
answ = 0
answ_v=[]
while True:
if i == n:
break
if s+a[i][1]>k:
break
s += a[i][1... | output | 1 | 88,822 | 14 | 177,645 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,823 | 14 | 177,646 |
Tags: greedy, implementation, sortings
Correct Solution:
```
n,k=map(int,input().split())
a=list(map(int,input().split()))
a=[(a[i],i+1) for i in range(len(a))]
#print(a)
l=0
a.sort()
for i in a:
k-=i[0]
if(k<0):
break
l+=1
if(l==0):
print(l)
else:
print(l)
for i in a[:l]:
print(... | output | 1 | 88,823 | 14 | 177,647 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Amr is a young coder who likes music a lot. He always wanted to learn how to play music but he was busy coding so he got an idea.
Amr has n instruments, it takes ai days to learn i-th instrument. Being busy, Amr dedicated k days to learn ho... | instruction | 0 | 88,824 | 14 | 177,648 |
Tags: greedy, implementation, sortings
Correct Solution:
```
a,k = map(int,input().split())
ls = list(map(int,input().split()))
nls = []
for i in ls:
nls.append(i)
ls.sort()
ind = []
ins = 0
for i in range(a):
if ls[i] <= k and ins <= k:
if ins + ls[i]>k:
break
else:
ins += ls[i]
ind.append(nls.index(ls[... | output | 1 | 88,824 | 14 | 177,649 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. They were standing in a row yesterday, but now they are unsure of the order in which they were standing. However, each person remembered th... | instruction | 0 | 89,122 | 14 | 178,244 |
No | output | 1 | 89,122 | 14 | 178,245 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,512 | 14 | 179,024 |
Tags: dp, greedy
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
a=list(map(int,input().split()))
for i in range(n-1, -1, -1):
if i == n-1:
a[i] += 1
else:
if a[i] < a[i+1]-1:
a[i] += 1
print(len(set(a)))
``` | output | 1 | 89,512 | 14 | 179,025 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,513 | 14 | 179,026 |
Tags: dp, greedy
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
l=list(map(int,input().split()))
a=[0]*(2*n+1)
for i in l:
a[i]+=1
c=0
for i in range(1,2*n):
#print(a)
if a[i]>1 and a[i+1]==0:
a[i+1]=1
elif a[i]>1:
a[i+1... | output | 1 | 89,513 | 14 | 179,027 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,514 | 14 | 179,028 |
Tags: dp, greedy
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
note = list(map(int, input().rstrip().split()))
if n == 1:
print('1')
else:
if note[1] == note[0]:
note[1] += 1
for i in range(2,n):
if note[i] == note[i-1] or note[i] ==... | output | 1 | 89,514 | 14 | 179,029 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,515 | 14 | 179,030 |
Tags: dp, greedy
Correct Solution:
```
# This is a sample Python script.
# Press ⌃R to execute it or replace it with your code.
# Press Double ⇧ to search everywhere for classes, files, tool windows, actions, and settings.
# Press the green button in the gutter to run the script.
import sys
if __name__ == '__main__'... | output | 1 | 89,515 | 14 | 179,031 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,516 | 14 | 179,032 |
Tags: dp, greedy
Correct Solution:
```
from collections import Counter
for _ in range(int(input())):
n=int(input())
l=list(map(int,input().split()))
d=Counter(l)
c=0
for i in range(2*n+1,0,-1):
if(d[i]>0):
c+=1
for j in range(2*n+1,0,-1):
if(d[j]==1 and d[j+1]==0):
... | output | 1 | 89,516 | 14 | 179,033 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,517 | 14 | 179,034 |
Tags: dp, greedy
Correct Solution:
```
n = int(input())
for _ in range(n):
m = int(input())
arr = list(map(int, input().split()))
dct = {}
so = 0
tong = 0
for i in arr:
if i == so:
tong += 1
so += 1
elif i > so:
tong += 1
so = i
... | output | 1 | 89,517 | 14 | 179,035 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,518 | 14 | 179,036 |
Tags: dp, greedy
Correct Solution:
```
from sys import stdin
def function(list):
list.sort()
for i in range(len(list)-1):
if list[i]==list[i-1] and list[i]!=list[i+1]:
list[i]+=1
if len(list)>1:
if list[-1]==list[-2]:
list[-1]+=1
return len(set(list))
n=int(inpu... | output | 1 | 89,518 | 14 | 179,037 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met with a warm reception.
His song consists of n... | instruction | 0 | 89,519 | 14 | 179,038 |
Tags: dp, greedy
Correct Solution:
```
t=int(input())
for tcs in range(t):
n=int(input())
l=list(map(int,input().split()))
c=0
if(n<3):
print(n)
else:
for i in range(1,n-1):
if(l[i]>l[i-1] and l[i]<l[i+1]):
c+=1
else:
if(l[i]<l[... | output | 1 | 89,519 | 14 | 179,039 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,520 | 14 | 179,040 |
Yes | output | 1 | 89,520 | 14 | 179,041 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,521 | 14 | 179,042 |
Yes | output | 1 | 89,521 | 14 | 179,043 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,522 | 14 | 179,044 |
Yes | output | 1 | 89,522 | 14 | 179,045 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,523 | 14 | 179,046 |
Yes | output | 1 | 89,523 | 14 | 179,047 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,524 | 14 | 179,048 |
No | output | 1 | 89,524 | 14 | 179,049 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,525 | 14 | 179,050 |
No | output | 1 | 89,525 | 14 | 179,051 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,526 | 14 | 179,052 |
No | output | 1 | 89,526 | 14 | 179,053 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Athenaeus has just finished creating his latest musical composition and will present it tomorrow to the people of Athens. Unfortunately, the melody is rather dull and highly likely won't be met ... | instruction | 0 | 89,527 | 14 | 179,054 |
No | output | 1 | 89,527 | 14 | 179,055 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,674 | 14 | 179,348 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
# #1 .5 1 (n>=t)
# # 1 => .5
# #1 .5 4 (n<t)
# # 1 => (.5) + (.5^2) + (.5^3) + (.5^4) (n < t)
# #2 .4 4
# # 1 => 4*(.4)(.6)^3
# # 2 => (.4)(.4) + (.4)(.6)(.4) + (.4)(.6.)(.6)(.4) + (.6)(.4)(.4) + (.6)(.4)(.6)(.4) + (.6)(.6)(.4)(.4)
# # =(.4)^2 [... | output | 1 | 89,674 | 14 | 179,349 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,675 | 14 | 179,350 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
import sys
n, p, t = map(str, sys.stdin.readline().split())
n = int(n)
p = float(p)
t = int(t)
def CC(nn,k):
tmp = n
t = max(nn - k, k)
for i in range(1, min(nn - k, k) + 1):
tmp = tmp * (t + i) * (1 - p) / i
if k > nn - k:
... | output | 1 | 89,675 | 14 | 179,351 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,676 | 14 | 179,352 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
n,p,t = input().split()
n = int(n)
p = float(p)
t = int(t)
# dp[n][p][t]
dp = [[0 for _ in range(t+1)] for _ in range(n+1)]
dp[0][0] = 1
for n_p in range(n+1):
for t_p in range(t):
dp[n_p][t_p+1] = dp[n_p][t_p]*(1-p) + dp[n_p][t_p+1]
... | output | 1 | 89,676 | 14 | 179,353 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,677 | 14 | 179,354 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
n, p, t = map(float, input().split())
n, t = int(n), int(t)
dp = [[0 for i in range(t + 1)] for j in range(n + 1)]
for i in range(1, n + 1):
for j in range(1, t + 1):
dp[i][j] = p * (dp[i - 1][j - 1] + 1) + (1 - p) * dp[i][j - 1]
print(dp[n][t])
`... | output | 1 | 89,677 | 14 | 179,355 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,678 | 14 | 179,356 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
def main():
tmp = input().split()
n, p, t = int(tmp[0]), float(tmp[1]), int(tmp[2])
q = 1. - p
res = [0.] * (n + 1)
res[0] = 1.
for _ in range(t):
tmp = [x * q for x in res]
tmp[-1] = res[-1]
for i in rang... | output | 1 | 89,678 | 14 | 179,357 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,679 | 14 | 179,358 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
n, p, t = input().split()
n = int(n)
t = int(t)
p = float(p)
ans = 0.0
s = t
if abs(1.0 - p) > 1e-6:
a1 = 1.0
for i in range(1, t + 1):
a1 = a1 * (t - i + 1) / i if i <= t else 0
a1 = a1 * p
while (a1 > 1e5) and (s > i):
... | output | 1 | 89,679 | 14 | 179,359 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,680 | 14 | 179,360 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
MAXN = 2005
dp = [[0 for col in range(MAXN)] for row in range(MAXN)]
n, q, t = input().split()
n = int(n)
t = int(t)
q = float(q)
if t <= n:
print(t*q)
else:
dp[0][0] = 1
for i in range(t+1):
for j in range(min(t, n)+1):
... | output | 1 | 89,680 | 14 | 179,361 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue for the escalator. At each second one of the two... | instruction | 0 | 89,681 | 14 | 179,362 |
Tags: combinatorics, dp, math, probabilities
Correct Solution:
```
inputs = [x for x in input().split()]
n,p,t = int(inputs[0]), float(inputs[1]), int(inputs[2])
saved = [[0 for _ in range(n)] for _ in range(t)]
saved[0][0] = p
for i in range(1, t):
saved[i][0] = saved[i-1][0] + ((1 - saved[i-1][0]) * p)
for i i... | output | 1 | 89,681 | 14 | 179,363 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Ilya got tired of sports programming, left university and got a job in the subway. He was given the task to determine the escalator load factor.
Let's assume that n people stand in the queue f... | instruction | 0 | 89,686 | 14 | 179,372 |
No | output | 1 | 89,686 | 14 | 179,373 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Well, the series which Stepan watched for a very long time, ended. In total, the series had n episodes. For each of them, Stepan remembers either that he definitely has watched it, or that he definitely hasn't watched it, or he is unsure, ha... | instruction | 0 | 89,775 | 14 | 179,550 |
Tags: *special, dp
Correct Solution:
```
from sys import stdin
from functools import lru_cache
from collections import defaultdict
infile = stdin
N, K = map(int, infile.readline().split())
watched = infile.readline().strip()
mem = set()
mem.add((0,0,0))
for i, letter in enumerate(watched):
for d in range(K+1):
... | output | 1 | 89,775 | 14 | 179,551 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Well, the series which Stepan watched for a very long time, ended. In total, the series had n episodes. For each of them, Stepan remembers either that he definitely has watched it, or that he definitely hasn't watched it, or he is unsure, ha... | instruction | 0 | 89,776 | 14 | 179,552 |
Tags: *special, dp
Correct Solution:
```
def process(S, k):
n = len(S)
if k > n:
return 'NO'
current = 0
for i in range(n):
if S[i]=='N':
current+=1
if current > k:
return 'NO'
else:
current = 0
start_work = True
for i i... | output | 1 | 89,776 | 14 | 179,553 |
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