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.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The first line contains two integers n, m (1 ≤ n, m ... | instruction | 0 | 12,912 | 12 | 25,824 |
Tags: binary search, data structures, sortings, two pointers
Correct Solution:
```
from bisect import bisect_right
n, m = map(int, input().split())
a = list(map(int, input().split()))
a.sort()
b = list(map(int, input().split()))
def f(k):
lo = 0
hi = len(a)
while lo < hi:
mid = (lo + hi) // 2
... | output | 1 | 12,912 | 12 | 25,825 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The first line contains two integers n, m (1 ≤ n, m ... | instruction | 0 | 12,913 | 12 | 25,826 |
Tags: binary search, data structures, sortings, two pointers
Correct Solution:
```
n, m = list(map(int, input().split()))
a = list(map(int, input().split()))
b = list(map(int, input().split()))
a.sort()
b_index = []
for i in range(len(b)):
b_index.append([b[i], i])
b_index.sort()
ans = [0]*len(b)
ptr = 0
for i i... | output | 1 | 12,913 | 12 | 25,827 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The first line contains two integers n, m (1 ≤ n, m ... | instruction | 0 | 12,914 | 12 | 25,828 |
Tags: binary search, data structures, sortings, two pointers
Correct Solution:
```
x= input()
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = b.copy()
b.sort()
a.sort()
ans = 0
j = 0
i = 0
ot = {}
while j in range(len(b)) and i in range(len(a)):
if a[i]<=b[j]:
ans += 1
i += 1
els... | output | 1 | 12,914 | 12 | 25,829 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The f... | instruction | 0 | 12,917 | 12 | 25,834 |
Yes | output | 1 | 12,917 | 12 | 25,835 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The f... | instruction | 0 | 12,918 | 12 | 25,836 |
Yes | output | 1 | 12,918 | 12 | 25,837 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays of integers a and b. For each element of the second array bj you should find the number of elements in array a that are less than or equal to the value bj.
Input
The f... | instruction | 0 | 12,922 | 12 | 25,844 |
No | output | 1 | 12,922 | 12 | 25,845 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,966 | 12 | 25,932 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n, m = map(int, input().split())
ans = n
for i in range(m):
x, y = map(int, input().split())
ans = min(ans, y - x + 1)
print(ans)
for i in range(n):
print(i % ans, end=" ")
print()
``` | output | 1 | 12,966 | 12 | 25,933 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,967 | 12 | 25,934 |
Tags: constructive algorithms, greedy
Correct Solution:
```
data = list(map(int, input().split()))
n, m = data[0], data[1]
a = []
for i in range(m):
tmp = list(map(int, input().split()))
a.append(tmp)
# print(a)
min_len = 10**6
min_idx = 0
for i in range(len(a)):
if a[i][1] - a[i][0] + 1 < min_len:
... | output | 1 | 12,967 | 12 | 25,935 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,968 | 12 | 25,936 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n, m = list(map(int, input().split()))
mi = 10**10
for i in range(m):
l, r = list(map(int, input().split()))
mi = min(r - l + 1, mi)
print(mi)
for i in range(n):
print(i % mi, end=" ")
``` | output | 1 | 12,968 | 12 | 25,937 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,969 | 12 | 25,938 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import sys
import math
import collections
import heapq
import decimal
input=sys.stdin.readline
n,m=(int(i) for i in input().split())
d={}
k=n+1
for i in range(m):
a,b=(int(i) for i in input().split())
k=min(k,b-a+1)
l=[]
for i in range(n):
l.append... | output | 1 | 12,969 | 12 | 25,939 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,970 | 12 | 25,940 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n,m = map(int,input().split())
ans = n+1
for i in range(m):
a,b = map(int,input().split())
ans = min(ans, b-a+1)
print(ans)
arr = [0] * n
put = 0
for i in range(n):
arr[i] = put
put += 1
if(put == ans):
put = 0
print(*arr)
``` | output | 1 | 12,970 | 12 | 25,941 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,971 | 12 | 25,942 |
Tags: constructive algorithms, greedy
Correct Solution:
```
from sys import stdin
test = stdin.readlines()
n, m = map(int, test[0].split())
intervals = [[int(c) for c in test[i].split()] for i in range(1, m + 1)]
min_length = min(r - l + 1 for l, r in intervals)
ans = list(range(min_length)) * (n // min_length + 1)
a... | output | 1 | 12,971 | 12 | 25,943 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,972 | 12 | 25,944 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import sys
input = sys.stdin.readline
length, subs = list(map(int, input().strip().split()))
lol = 9999999999999999999999999999
for i in range(subs):
start,end = list(map(int, input().strip().split()))
if abs(start-end) + 1 < lol:
lol = abs(s... | output | 1 | 12,972 | 12 | 25,945 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its subarrays. Subarray is a set of some subsequent ele... | instruction | 0 | 12,973 | 12 | 25,946 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import sys
input = sys.stdin.readline
#
n,m = map(int, input().split())
mex = []
for i in range(m):
mex.append(list(map(int,input().split())))
ans = min([j-i+1 for i,j in mex])
print(ans)
lis = []
for i in range(n):
lis.append(str(i%ans))
print(' '.join(li... | output | 1 | 12,973 | 12 | 25,947 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,974 | 12 | 25,948 |
Yes | output | 1 | 12,974 | 12 | 25,949 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,975 | 12 | 25,950 |
Yes | output | 1 | 12,975 | 12 | 25,951 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,976 | 12 | 25,952 |
Yes | output | 1 | 12,976 | 12 | 25,953 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,977 | 12 | 25,954 |
Yes | output | 1 | 12,977 | 12 | 25,955 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,978 | 12 | 25,956 |
No | output | 1 | 12,978 | 12 | 25,957 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,979 | 12 | 25,958 |
No | output | 1 | 12,979 | 12 | 25,959 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,980 | 12 | 25,960 |
No | output | 1 | 12,980 | 12 | 25,961 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special.
Alyona is a capricious girl so after she gets the array, she inspects m of its suba... | instruction | 0 | 12,981 | 12 | 25,962 |
No | output | 1 | 12,981 | 12 | 25,963 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,359 | 12 | 26,718 |
Tags: hashing, math, number theory
Correct Solution:
```
from fractions import Fraction
from collections import Counter
inf = 10**9+7
n = int(input())
a = [int(s) for s in input().split()]
b = [int(s) for s in input().split()]
d = []
zeros = 0
for i in range(n):
if a[i] != 0:
d.append(Fraction(-b[i], a[i]))... | output | 1 | 13,359 | 12 | 26,719 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,360 | 12 | 26,720 |
Tags: hashing, math, number theory
Correct Solution:
```
from decimal import getcontext, Decimal
getcontext().prec = 50
n = int(input())
arr1 = list(map(int, input().split()))
arr2 = list(map(int, input().split()))
mp = {}
appendix = 0
for i in range(n):
if arr1[i] == arr2[i] == 0:
appendix += 1
e... | output | 1 | 13,360 | 12 | 26,721 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,361 | 12 | 26,722 |
Tags: hashing, math, number theory
Correct Solution:
```
from fractions import gcd
n = int(input())
ai = list(map(int,input().split()))
bi = list(map(int,input().split()))
s = {}
num = 0
mod = 2 * 10**9 + 1
for i in range(n):
if ai[i] != 0:
temp = gcd(ai[i],bi[i])
try :
s[-ai[i] // temp ... | output | 1 | 13,361 | 12 | 26,723 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,362 | 12 | 26,724 |
Tags: hashing, math, number theory
Correct Solution:
```
from decimal import Decimal
from collections import *
n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
c = []
d = defaultdict(int)
ans = 0
value = 0
for i in range(n):
if (a[i]==0 and b[i]!=0):
continue
if a[i... | output | 1 | 13,362 | 12 | 26,725 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,363 | 12 | 26,726 |
Tags: hashing, math, number theory
Correct Solution:
```
from collections import Counter
from fractions import Fraction
N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
D = []
indef_num = 0
for (a, b) in zip(A, B):
if a == 0:
if b == 0:
indef_num += 1
... | output | 1 | 13,363 | 12 | 26,727 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,364 | 12 | 26,728 |
Tags: hashing, math, number theory
Correct Solution:
```
from math import gcd
def get_sign(_u, _b):
if (_u > 0 and _b > 0) or (_u < 0 and _b < 0):
return ""
else:
return "-"
if __name__ == '__main__':
input()
u = list(map(int, input().split(" ")))
b = list(map(int, input().split(... | output | 1 | 13,364 | 12 | 26,729 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,365 | 12 | 26,730 |
Tags: hashing, math, number theory
Correct Solution:
```
n=int(input())
from decimal import *
getcontext().prec = 100
a=[int(i) for i in input().split()]
b=[int(i) for i in input().split()]
sm=0
d1=[]
d2=[]
cnt=0
for i in range(n):
if a[i]==0 and b[i]==0:
cnt+=1
continue
if a[i]==0 :
... | output | 1 | 13,365 | 12 | 26,731 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] let c_i := d ⋅ a_i + b_i.
Your goal is to maxi... | instruction | 0 | 13,366 | 12 | 26,732 |
Tags: hashing, math, number theory
Correct Solution:
```
'''
i see two problems now:
is 1000000/17 = 2000000/34 something along that line, involving multiple decimals
solution is do sedsuonyangtam.
a = 0, b = 0
'''
def gcd(a, b):
if b == 0:
return a
else:
return gcd(b, a % b)... | output | 1 | 13,366 | 12 | 26,733 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] ... | instruction | 0 | 13,368 | 12 | 26,736 |
Yes | output | 1 | 13,368 | 12 | 26,737 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] ... | instruction | 0 | 13,372 | 12 | 26,744 |
No | output | 1 | 13,372 | 12 | 26,745 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given two arrays a and b, each contains n integers.
You want to create a new array c as follows: choose some real (i.e. not necessarily integer) number d, and then for every i ∈ [1, n] ... | instruction | 0 | 13,374 | 12 | 26,748 |
No | output | 1 | 13,374 | 12 | 26,749 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a_1, a_2, ..., a_n.
Let's call some subarray a_l, a_{l + 1}, ... , a_r of this array a subpermutation if it contains all integers from 1 to r-l+1 exactly once. For example, array a = [2, 2, 1, 3, 2, 3, 1] contains 6 subar... | instruction | 0 | 13,391 | 12 | 26,782 |
Tags: brute force, data structures, divide and conquer, hashing, math
Correct Solution:
```
import sys
import math
input=sys.stdin.readline
#sys.setrecursionlimit(1000000)
mod=int(1000000007)
i=lambda :map(int,input().split())
n=int(input())
a=[int(x) for x in input().split()]
t=[[0]*21 for i in range(300005)]
for i ... | output | 1 | 13,391 | 12 | 26,783 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a_1, a_2, ..., a_n.
Let's call some subarray a_l, a_{l + 1}, ... , a_r of this array a subpermutation if it contains all integers from 1 to r-l+1 exactly once. For example, array a = [2, 2, 1, 3, 2, 3, 1] contains 6 subar... | instruction | 0 | 13,392 | 12 | 26,784 |
Tags: brute force, data structures, divide and conquer, hashing, math
Correct Solution:
```
#import sys
import math
#input=sys.stdin.readline
#sys.setrecursionlimit(1000000)
mod=int(1000000007)
i=lambda :map(int,input().split())
n=int(input())
a=[int(x) for x in input().split()]
t=[[0]*21 for i in range(300005)]
for ... | output | 1 | 13,392 | 12 | 26,785 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have an array a_1, a_2, ..., a_n.
Let's call some subarray a_l, a_{l + 1}, ... , a_r of this array a subpermutation if it contains all integers from 1 to r-l+1 exactly once. For example, a... | instruction | 0 | 13,393 | 12 | 26,786 |
No | output | 1 | 13,393 | 12 | 26,787 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,438 | 12 | 26,876 |
Tags: constructive algorithms, sortings
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
a.sort()
m = (n + 1) // 2 - 1
for x, y in zip(a[m::-1], a[m + 1::]):
print(x, y, end=' ')
if n % 2:
print(a[0], end=' ')
print()
``... | output | 1 | 13,438 | 12 | 26,877 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,439 | 12 | 26,878 |
Tags: constructive algorithms, sortings
Correct Solution:
```
import math
t=int(input())
for g in range(0,t):
n=int(input())
a=list(map(int,input().split(" ")))
a.sort()
if(n%2==0):
k=int(n/2)-1
else:
k=int(n/2)
b=[]
b.append(a[k])
i=k-1
j=k+1
while(i>=0 and j<=n-... | output | 1 | 13,439 | 12 | 26,879 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,440 | 12 | 26,880 |
Tags: constructive algorithms, sortings
Correct Solution:
```
import sys
import math as mt
input=sys.stdin.buffer.readline
import bisect
t=int(input())
#tot=0
for __ in range(t):
n=int(input())
a=list(map(int,input().split()))
a.sort()
ans=[]
i=(n//2)-1
j=(n//2)+1
ans.append(a[n//2])
... | output | 1 | 13,440 | 12 | 26,881 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,441 | 12 | 26,882 |
Tags: constructive algorithms, sortings
Correct Solution:
```
t=int(input())
p=[]
for ikn in range(0,t):
n=int(input())
s=input().split( )
for i in range(0,n):
s[i]=int(s[i])
s.sort()
d=[]
g=0
while len(d)<len(s):
d.append(s[g])
d.append(s[n-g-1])
g+=1
if len(d)==n+1:
del(d[n])
d.r... | output | 1 | 13,441 | 12 | 26,883 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,442 | 12 | 26,884 |
Tags: constructive algorithms, sortings
Correct Solution:
```
for t in range(int(input())):
n=int(input())
a=list(map(int,input().split()))
a.sort()
l=[]
for i in range(n):
if i%2:
l+=[a.pop(0)]
else:
l+=[a.pop()]
print(*l[::-1])
``` | output | 1 | 13,442 | 12 | 26,885 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,443 | 12 | 26,886 |
Tags: constructive algorithms, sortings
Correct Solution:
```
t = int(input())
for q in range(t):
n=int(input())
arr = list(map(int, input().split()))
arr.sort()
ans=[]
if n%2==0:
for i in range(n//2):
ans.append(arr[n-i-1])
ans.append(arr[i])
else:
for i ... | output | 1 | 13,443 | 12 | 26,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,444 | 12 | 26,888 |
Tags: constructive algorithms, sortings
Correct Solution:
```
for t in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
a.sort()
b = [0] * n
j = 0
for i in range(n // 2, n):
b[j] = a[i]
if i != n - 1 or n % 2 == 0:
b[j + 1] = a[n - i - 1 - n %... | output | 1 | 13,444 | 12 | 26,889 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's always possible to find such rearrangement.
Note... | instruction | 0 | 13,445 | 12 | 26,890 |
Tags: constructive algorithms, sortings
Correct Solution:
```
def solve():
n = int(input())
a = sorted([int(x) for x in input().split()])
l, r = 0, len(a) - 1
cur = 0
res = []
while(l <= r):
if(cur == 0):
res.append(str(a[l]))
l += 1
else:
res.append(str(a[r]))
r -= 1
cur = 1 - cur
print(" ".jo... | output | 1 | 13,445 | 12 | 26,891 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,446 | 12 | 26,892 |
Yes | output | 1 | 13,446 | 12 | 26,893 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,447 | 12 | 26,894 |
Yes | output | 1 | 13,447 | 12 | 26,895 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,448 | 12 | 26,896 |
Yes | output | 1 | 13,448 | 12 | 26,897 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,449 | 12 | 26,898 |
Yes | output | 1 | 13,449 | 12 | 26,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,450 | 12 | 26,900 |
No | output | 1 | 13,450 | 12 | 26,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have array of n numbers a_{1}, a_{2}, …, a_{n}.
Rearrange these numbers to satisfy |a_{1} - a_{2}| ≤ |a_{2} - a_{3}| ≤ … ≤ |a_{n-1} - a_{n}|, where |x| denotes absolute value of x. It's al... | instruction | 0 | 13,451 | 12 | 26,902 |
No | output | 1 | 13,451 | 12 | 26,903 |
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