message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can make one move to choose an arbitrary pair of i... | instruction | 0 | 103,140 | 12 | 206,280 |
Tags: brute force, greedy
Correct Solution:
```
n=int(input())
a=[int(i) for i in input().split()]
sm = 0
for i in range(n-1):
sm+=max(a[i]-a[i+1],0)
print(sm)
'''
7 4 1 47
7->4.... 1 47
add 1 from 4 3 times
7->7->4->50
.....
add 1 from 4 is 3 times
7->7->7->47
sorted
6 times add... | output | 1 | 103,140 | 12 | 206,281 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,141 | 12 | 206,282 |
Yes | output | 1 | 103,141 | 12 | 206,283 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,142 | 12 | 206,284 |
Yes | output | 1 | 103,142 | 12 | 206,285 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,143 | 12 | 206,286 |
Yes | output | 1 | 103,143 | 12 | 206,287 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,144 | 12 | 206,288 |
Yes | output | 1 | 103,144 | 12 | 206,289 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,145 | 12 | 206,290 |
No | output | 1 | 103,145 | 12 | 206,291 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,146 | 12 | 206,292 |
No | output | 1 | 103,146 | 12 | 206,293 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,147 | 12 | 206,294 |
No | output | 1 | 103,147 | 12 | 206,295 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves sortings.
He has an array a consisting of n integers. Let's number the array elements from 1 to n, then the i-th element will be denoted as ai. The Little Elephant can... | instruction | 0 | 103,148 | 12 | 206,296 |
No | output | 1 | 103,148 | 12 | 206,297 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,149 | 12 | 206,298 |
Tags: brute force
Correct Solution:
```
notused, inp = 0*int(input()), sorted(list(set(map(int, input().split(" ")))))
print(inp[1]) if len(inp) > 1 else print("NO")
``` | output | 1 | 103,149 | 12 | 206,299 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,150 | 12 | 206,300 |
Tags: brute force
Correct Solution:
```
n = int(input())
a = set(map(int,input().split(" ")))
if len(a)>1:
a= sorted(a)
print(a[1])
else:
print("NO")
``` | output | 1 | 103,150 | 12 | 206,301 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,151 | 12 | 206,302 |
Tags: brute force
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
a.sort()
i = 1
while i < n:
if a[i] == a[i-1]:
i += 1
else:
break
if i == n:
print ('NO')
else:
print (a[i])
``` | output | 1 | 103,151 | 12 | 206,303 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,152 | 12 | 206,304 |
Tags: brute force
Correct Solution:
```
from functools import reduce
from operator import *
from math import *
from sys import *
from string import *
from collections import *
setrecursionlimit(10**7)
dX= [-1, 1, 0, 0,-1, 1,-1, 1]
dY= [ 0, 0,-1, 1, 1,-1,-1, 1]
RI=lambda: list(map(int,input().split()))
RS=lambda: input(... | output | 1 | 103,152 | 12 | 206,305 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,153 | 12 | 206,306 |
Tags: brute force
Correct Solution:
```
n = int(input())
nums = list(map(int, input().split()))
u_nums = list(set(nums))
u_nums.sort()
if len(u_nums)>1:
print(u_nums[1])
else:
print("NO")
``` | output | 1 | 103,153 | 12 | 206,307 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,154 | 12 | 206,308 |
Tags: brute force
Correct Solution:
```
n = int(input())
l = list(map(int, input().split()))
k = sorted(list(set(l)))
if len(k) < 2:
print("NO")
else:
print(k[1])
``` | output | 1 | 103,154 | 12 | 206,309 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,155 | 12 | 206,310 |
Tags: brute force
Correct Solution:
```
n = int(input())
ls = list(map(int, input().split()))
def second_order(ls):
if len(list(dict.fromkeys(sorted(ls)))) > 1:
return list(dict.fromkeys(sorted(ls)))[1]
else:
return "NO"
print(second_order(ls))
``` | output | 1 | 103,155 | 12 | 206,311 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Once Bob needed to find the second order statistics of a sequence of integer numbers. Lets choose each number from the sequence exactly once and sort them. The value on the second position is the second order statistics of the given sequence... | instruction | 0 | 103,156 | 12 | 206,312 |
Tags: brute force
Correct Solution:
```
n = int(input())
mas = {int(x) for x in input().split()}
smas = sorted(mas)
if smas == mas or len(smas) < 2:
print("NO")
else:
print(smas[1])
``` | output | 1 | 103,156 | 12 | 206,313 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Artem has an array of n positive integers. Artem decided to play with it. The game consists of n moves. Each move goes like this. Artem chooses some element of the array and removes it. For that, he gets min(a, b) points, where a and b are n... | instruction | 0 | 103,239 | 12 | 206,478 |
Tags: data structures, greedy
Correct Solution:
```
n = input()
s = []
a = 0
for i in map(int, input().split()):
while len(s) > 1 and min(s[-2], i)>=s[-1]:
a += min(i, s[-2])
del(s[-1])
s.append(i)
s.sort()
print(a + sum(s[0: -2]))
``` | output | 1 | 103,239 | 12 | 206,479 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dr. Evil kidnapped Mahmoud and Ehab in the evil land because of their performance in the Evil Olympiad in Informatics (EOI). He decided to give them some problems to let them go.
Dr. Evil is interested in sets, He has a set of n integers. D... | instruction | 0 | 103,383 | 12 | 206,766 |
Tags: greedy, implementation
Correct Solution:
```
_, x = [int(x) for x in input().split(' ')]
s = set([int(i) for i in input().split(' ') if int(i) <= x])
d = set(range(x)).symmetric_difference(s)
print(len(d))
``` | output | 1 | 103,383 | 12 | 206,767 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dr. Evil kidnapped Mahmoud and Ehab in the evil land because of their performance in the Evil Olympiad in Informatics (EOI). He decided to give them some problems to let them go.
Dr. Evil is interested in sets, He has a set of n integers. D... | instruction | 0 | 103,386 | 12 | 206,772 |
Tags: greedy, implementation
Correct Solution:
```
from bisect import bisect
n, k = [int(x) for x in input().strip().split()]
arr = [False for _ in range(101)]
inp = [int(x) for x in input().strip().split()]
for i in inp:
arr[i] = True
count = 1 if arr[k] else 0
for i in range(0, k):
if not (arr[i]):
count+=1
pri... | output | 1 | 103,386 | 12 | 206,773 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dr. Evil kidnapped Mahmoud and Ehab in the evil land because of their performance in the Evil Olympiad in Informatics (EOI). He decided to give them some problems to let them go.
Dr. Evil is in... | instruction | 0 | 103,392 | 12 | 206,784 |
Yes | output | 1 | 103,392 | 12 | 206,785 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,732 | 12 | 207,464 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
MOD = 998244353
n, k = map(int, input().split())
a = list(map(int, input().split()))
ch = []
lt = None
for beg in (0, 1):
for i in range(beg, n, 2):
if a[i] == -1:
if lt is None:
lt = -1 if i - 2 < 0 else a[i - 2]
sz = 0
sz += 1
if ... | output | 1 | 103,732 | 12 | 207,465 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,733 | 12 | 207,466 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
n,k = map(int, input().strip().split())
l = list(map(int, input().strip().split()))
test = True
md = 998244353
evens = [0]
odds = [0]
for i in range(n):
if i%2:
odds.append(l[i])
else:
evens.append(l[i])
evens.append(-10)
odds.app... | output | 1 | 103,733 | 12 | 207,467 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,734 | 12 | 207,468 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
mod = 998244353
maxn = 200002
def pow(a, e):
if e <= 0: return 1
ret = 1
while e:
if e & 1:
ret = (ret * a) % mod
a = (a * a) % mod
e >>= 1
return ret
fn, fe = [1], [None]
def build(k):
fn... | output | 1 | 103,734 | 12 | 207,469 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,735 | 12 | 207,470 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
#!/usr/bin/python3.7
import sys
mod = 998244353
n, k = [int(x) for x in input().split()]
a = [int(x) for x in input().split()]
ub = [0 for i in range(n)]
b = [[0, 0] for i in range(n)]
ub[0] = 1
b[0] = [0, 1]
for i in range(1, n):
ub[i] = ub[i - ... | output | 1 | 103,735 | 12 | 207,471 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,736 | 12 | 207,472 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
import io, os
input = io.StringIO(os.read(0, os.fstat(0).st_size).decode()).readline
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
MOD = 998244353
n, k = mi()
a = li()
grps = []
ok = 1
for i in range(1, n -... | output | 1 | 103,736 | 12 | 207,473 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,737 | 12 | 207,474 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
import sys
mod = 998244353
def mult(a, b):
y = 1
for i in range(b):
y = y * a % mod
return y
def getS(cnt, k, b1, b2):
if b1 < b2:
b1, b2 = b2, b1
if b1 == b2 == 0:
s = mult(k - 1, cnt - 1)
s = s * k ... | output | 1 | 103,737 | 12 | 207,475 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,738 | 12 | 207,476 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
import sys
input = sys.stdin.readline
def compress(string):
n = len(string)
begin, cnt = 0, 0
ans = []
if n == 0:
return ans
for end in range(n + 1):
if end == n or string[begin] != string[end]:
ans.appen... | output | 1 | 103,738 | 12 | 207,477 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b_{r - i}.
If an array is not bad, it is good.
... | instruction | 0 | 103,739 | 12 | 207,478 |
Tags: combinatorics, divide and conquer, dp
Correct Solution:
```
def solve1(a, l, r, k, mod):
n = len(a)
if l == 0 and r == n:
return k * (k - 1) ** (n - 1)
if l == 0 or r == n:
return (k - 1) ** (r - l)
x = a[l - 1]
y = a[r]
dp0 = [0] * (r - l)
dp1 = [0] * (r - l)
... | output | 1 | 103,739 | 12 | 207,479 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,740 | 12 | 207,480 |
Yes | output | 1 | 103,740 | 12 | 207,481 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,741 | 12 | 207,482 |
Yes | output | 1 | 103,741 | 12 | 207,483 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,742 | 12 | 207,484 |
Yes | output | 1 | 103,742 | 12 | 207,485 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,743 | 12 | 207,486 |
Yes | output | 1 | 103,743 | 12 | 207,487 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,744 | 12 | 207,488 |
No | output | 1 | 103,744 | 12 | 207,489 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,745 | 12 | 207,490 |
No | output | 1 | 103,745 | 12 | 207,491 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,746 | 12 | 207,492 |
No | output | 1 | 103,746 | 12 | 207,493 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's denote that some array b is bad if it contains a subarray b_l, b_{l+1}, ..., b_{r} of odd length more than 1 (l < r and r - l + 1 is odd) such that β i β \{0, 1, ..., r - l\} b_{l + i} = b... | instruction | 0 | 103,747 | 12 | 207,494 |
No | output | 1 | 103,747 | 12 | 207,495 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product of whose elements is a perfect square.
A sequ... | instruction | 0 | 103,834 | 12 | 207,668 |
Tags: brute force, dfs and similar, graphs, number theory, shortest paths
Correct Solution:
```
import sys
input = sys.stdin.readline
n=int(input())
A=list(map(int,input().split()))
Primes=(2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 13... | output | 1 | 103,834 | 12 | 207,669 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product of whose elements is a perfect square.
A sequ... | instruction | 0 | 103,835 | 12 | 207,670 |
Tags: brute force, dfs and similar, graphs, number theory, shortest paths
Correct Solution:
```
from collections import deque,defaultdict
import sys
input=sys.stdin.readline
def make_mf():
res=[-1]*(mxa+5)
ptoi=[0]*(mxa+5)
pn=1
for i in range(2,mxa+5):
if res[i]==-1:
res[i]=i
... | output | 1 | 103,835 | 12 | 207,671 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product of whose elements is a perfect square.
A sequ... | instruction | 0 | 103,836 | 12 | 207,672 |
Tags: brute force, dfs and similar, graphs, number theory, shortest paths
Correct Solution:
```
from collections import deque
import sys
input=sys.stdin.readline
def make_mf():
res=[-1]*(mxa+5)
ptoi=[0]*(mxa+5)
pn=1
for i in range(2,mxa+5):
if res[i]==-1:
res[i]=i
ptoi[i... | output | 1 | 103,836 | 12 | 207,673 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product... | instruction | 0 | 103,837 | 12 | 207,674 |
No | output | 1 | 103,837 | 12 | 207,675 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product... | instruction | 0 | 103,838 | 12 | 207,676 |
No | output | 1 | 103,838 | 12 | 207,677 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product... | instruction | 0 | 103,839 | 12 | 207,678 |
No | output | 1 | 103,839 | 12 | 207,679 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a of length n that has a special condition: every element in this array has at most 7 divisors. Find the length of the shortest non-empty subsequence of this array product... | instruction | 0 | 103,840 | 12 | 207,680 |
No | output | 1 | 103,840 | 12 | 207,681 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,923 | 12 | 207,846 |
Tags: constructive algorithms, sortings
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
l = sorted(list(map(int, input().split())), reverse=True)
ans = [0]*(2*n)
for i, j in enumerate(l):
if i < n:
ans[2*i+1] = j
else:
x = n - i
an... | output | 1 | 103,923 | 12 | 207,847 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,924 | 12 | 207,848 |
Tags: constructive algorithms, sortings
Correct Solution:
```
t=int(input())
for _ in range(t):
n=int(input())
arr=list(map(int,input().split(' ')))
arr.sort()
l=[]
i=0
j=2*n-1
while(i<j):
l.append(arr[i])
l.append(arr[j])
i=i+1
j=j-1
for k in l:
p... | output | 1 | 103,924 | 12 | 207,849 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,925 | 12 | 207,850 |
Tags: constructive algorithms, sortings
Correct Solution:
```
# cook your dish here
# from math import factorial, ceil, pow, sqrt, floor, gcd
from sys import stdin, stdout
#from collections import defaultdict, Counter, deque
#from bisect import bisect_left, bisect_right
# import sympy
# from itertools import permutat... | output | 1 | 103,925 | 12 | 207,851 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,926 | 12 | 207,852 |
Tags: constructive algorithms, sortings
Correct Solution:
```
#Fast I/O
import sys,os
import math
# To enable the file I/O i the below 2 lines are uncommented.
# read from in.txt if uncommented
if os.path.exists('in.txt'): sys.stdin=open('in.txt','r')
# will print on Console if file I/O is not activated
#if os.path.exi... | output | 1 | 103,926 | 12 | 207,853 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,927 | 12 | 207,854 |
Tags: constructive algorithms, sortings
Correct Solution:
```
from random import random
def good(a,n):
for i in range(1,2*n-1):
if a[i-1] + a[i+1] == a[i]*2:
return False
if a[0]*2 == a[1] + a[-1]:
return False
if a[-1]*2 == a[-2] + a[0]:
return False
return True
... | output | 1 | 103,927 | 12 | 207,855 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of 2n distinct integers. You want to arrange the elements of the array in a circle such that no element is equal to the the arithmetic mean of its 2 neighbours.
More formally, find an array b, such that:
* b is ... | instruction | 0 | 103,928 | 12 | 207,856 |
Tags: constructive algorithms, sortings
Correct Solution:
```
import sys
input = sys.stdin.buffer.readline
for _ in range(int(input())):
n = int(input())
a = list(map(int,input().split()))
a.sort()
b = [0]*(2*n)
for i in range(n):
b[2*i] = a[i]
for i in range(n):
b[2*i+1] = ... | output | 1 | 103,928 | 12 | 207,857 |
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