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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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,207
12
170,414
Yes
output
1
85,207
12
170,415
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,208
12
170,416
Yes
output
1
85,208
12
170,417
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,209
12
170,418
Yes
output
1
85,209
12
170,419
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,210
12
170,420
Yes
output
1
85,210
12
170,421
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,211
12
170,422
No
output
1
85,211
12
170,423
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,212
12
170,424
No
output
1
85,212
12
170,425
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,213
12
170,426
No
output
1
85,213
12
170,427
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 2n. Consider a partition of array a into two subsequences p and q of length n each (each element of array a should be in exactly one subsequence: either in p o...
instruction
0
85,214
12
170,428
No
output
1
85,214
12
170,429
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a square matrix consisting of n rows and n columns. We assume that the rows are numbered from 1 to n from top to bottom and the columns are numbered from 1 to n from left to right. Some cells (n - 1 cells in total) of the the m...
instruction
0
85,273
12
170,546
Tags: constructive algorithms, greedy, math Correct Solution: ``` def find_all(s, c): index = s.index(c) while True: yield index try: index = s.index(c, index + 1) except ValueError: break n = int(input()) row, col, actions = [], [], [] available = list(range(1,...
output
1
85,273
12
170,547
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a square matrix consisting of n rows and n columns. We assume that the rows are numbered from 1 to n from top to bottom and the columns are numbered from 1 to n from left to right. Some cells (n - 1 cells in total) of the the m...
instruction
0
85,274
12
170,548
Tags: constructive algorithms, greedy, math Correct Solution: ``` import os from io import BytesIO, IOBase import sys def main(): n = int(input()) row = [0] * n col = [0] * n a = [[0 for j in range(n)] for i in range(n)] for i in range(n - 1): x, y = map(int, input().split()) row[x ...
output
1
85,274
12
170,549
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a square matrix consisting of n rows and n columns. We assume that the rows are numbered from 1 to n from top to bottom and the columns are numbered from 1 to n from left to right. Some cells (n - 1 cells in total) of the the m...
instruction
0
85,275
12
170,550
Tags: constructive algorithms, greedy, math Correct Solution: ``` # https://codeforces.com/problemset/problem/266/C n = int(input()) P = [list(map(int, input().split())) for _ in range(n-1)] col = set() row = set() sCol = {} sRow = {} for x, y in P: row.add(x) col.add(y) n_col = len(col) n_ro...
output
1
85,275
12
170,551
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a square matrix consisting of n rows and n columns. We assume that the rows are numbered from 1 to n from top to bottom and the columns are numbered from 1 to n from left to right. Some cells (n - 1 cells in total) of the the m...
instruction
0
85,276
12
170,552
Tags: constructive algorithms, greedy, math Correct Solution: ``` n = int(input()) a = [] b = [0] * (n+1) c = [10000] * (n+1) for i in range(0,n-1): p1,p2 = list(map(int,input().split())) a.append((p1,p2)) b[p1] = max(b[p1],p2) ans = [] for i in range(1,n+1): if b[i]==0: continue k = 0 for j i...
output
1
85,276
12
170,553
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a square matrix consisting of n rows and n columns. We assume that the rows are numbered from 1 to n from top to bottom and the columns are numbered from 1 to n from left to right. Some cells (n - 1 cells in total) of the the m...
instruction
0
85,277
12
170,554
Tags: constructive algorithms, greedy, math Correct Solution: ``` n = int(input()) a, b, c = [], [0] * (n+1), [int(2e9)] * (n+1) for i in range(n-1): p1, p2 = map(int, input().split()) a.append((p1, p2)) b[p1] = max(b[p1], p2) res = [] for i in range(1, n+1): if b[i] == 0: continue k = 0 ...
output
1
85,277
12
170,555
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,312
12
170,624
Tags: implementation Correct Solution: ``` import sys input = sys.stdin.readline n = int(input()) a = list(map(int, input().split())) i = 1 aSorted = sorted(a) while i < n and a[i] >= a[i-1]: i += 1 a = a[i:] + a[:i] for j in range(n): if aSorted[j] != a[j]: print(-1) break else: print((n...
output
1
85,312
12
170,625
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,313
12
170,626
Tags: implementation Correct Solution: ``` n = int(input()) s = list(map(int, input().split())) s1 = sorted(s) if s == s1: print(0) else: for i in range(n - 1): if s[i + 1] < s[i]: s = s[i + 1:] + s[:i + 1] if s == s1: print(n - (i + 1)) else: ...
output
1
85,313
12
170,627
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,314
12
170,628
Tags: implementation Correct Solution: ``` import sys n=int(input()) l1=list(map(int,input().split())) l3=l1.copy() l3.sort() for i in range(1,n): if l1[i-1]>l1[i]: l2=l1[i:]+l1[:i] if l3==l2: print(n-i) sys.exit() else : print(-1) sys.exit() p...
output
1
85,314
12
170,629
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,315
12
170,630
Tags: implementation Correct Solution: ``` n = int(input()) import sys def get_ints(): return list(map(int, sys.stdin.readline().strip().split())) from collections import deque arr = get_ints() dicts = {} flag = 0 maxnum = max(arr) items = deque(arr) flag = 0 def checkdecreasing(newarr): #print(newarr) prev...
output
1
85,315
12
170,631
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,316
12
170,632
Tags: implementation Correct Solution: ``` """ Author: Sagar Pandey """ # ---------------------------------------------------Import Libraries--------------------------------------------------- import sys import time import os from math import sqrt, log, log2, ceil, log10, gcd, floor, pow, sin, cos, tan, pi, inf, f...
output
1
85,316
12
170,633
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,317
12
170,634
Tags: implementation Correct Solution: ``` n = int(input()) lst = list(map(int, input().split())) ans = 0 c = 0 for i in range(1, n): if lst[i] < lst[i-1]: ans = n-i c += 1 if (c == 1 and lst[-1] <= lst[0]) or c == 0: print(ans) else: print(-1) ```
output
1
85,317
12
170,635
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,318
12
170,636
Tags: implementation Correct Solution: ``` n = int(input()) a = list(map(int,input().split())) b = -1 for i in range(1,n): if a[i-1]>a[i]: b = i break if b==-1: print(0) else: c = a[b:]+a[:b] flag = 0 for i in range(1,n): if c[i]<c[i-1]: flag = 1 break if flag == 1: print(-1) else: print(n-b) ...
output
1
85,318
12
170,637
Provide tags and a correct Python 3 solution for this coding contest problem. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the s...
instruction
0
85,319
12
170,638
Tags: implementation Correct Solution: ``` import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools sys.setrecursionlimit(10**7) inf = 10**20 eps = 1.0 / 10**10 mod = 10**9+7 dd = [(-1,0),(0,1),(1,0),(0,-1)] ddn = [(-1,0),(-1,1),(0,1),(1,1),(1,0),(1,-1),(0,-1),(-1,-1)] d...
output
1
85,319
12
170,639
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,320
12
170,640
Yes
output
1
85,320
12
170,641
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,321
12
170,642
Yes
output
1
85,321
12
170,643
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,322
12
170,644
Yes
output
1
85,322
12
170,645
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,323
12
170,646
Yes
output
1
85,323
12
170,647
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,324
12
170,648
No
output
1
85,324
12
170,649
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,325
12
170,650
No
output
1
85,325
12
170,651
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,326
12
170,652
No
output
1
85,326
12
170,653
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. ...
instruction
0
85,327
12
170,654
No
output
1
85,327
12
170,655
Provide tags and a correct Python 3 solution for this coding contest problem. Professor GukiZ has two arrays of integers, a and b. Professor wants to make the sum of the elements in the array a sa as close as possible to the sum of the elements in the array b sb. So he wants to minimize the value v = |sa - sb|. In on...
instruction
0
85,369
12
170,738
Tags: binary search, two pointers Correct Solution: ``` from bisect import bisect_left n = int(input()) a = list(map(int, input().split())) m = int(input()) b = list(map(int, input().split())) sum_a, sum_b = sum(a), sum(b) delta = sum_b - sum_a ans = abs(delta) ans_swap = [] for i in range(n): for j in range(m): ...
output
1
85,369
12
170,739
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Professor GukiZ has two arrays of integers, a and b. Professor wants to make the sum of the elements in the array a sa as close as possible to the sum of the elements in the array b sb. So he wa...
instruction
0
85,370
12
170,740
No
output
1
85,370
12
170,741
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Professor GukiZ has two arrays of integers, a and b. Professor wants to make the sum of the elements in the array a sa as close as possible to the sum of the elements in the array b sb. So he wa...
instruction
0
85,371
12
170,742
No
output
1
85,371
12
170,743
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Professor GukiZ has two arrays of integers, a and b. Professor wants to make the sum of the elements in the array a sa as close as possible to the sum of the elements in the array b sb. So he wa...
instruction
0
85,372
12
170,744
No
output
1
85,372
12
170,745
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Professor GukiZ has two arrays of integers, a and b. Professor wants to make the sum of the elements in the array a sa as close as possible to the sum of the elements in the array b sb. So he wa...
instruction
0
85,373
12
170,746
No
output
1
85,373
12
170,747
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,445
12
170,890
Tags: constructive algorithms, divide and conquer Correct Solution: ``` import sys n, k = map(int, input().split()) k = [k-1] ans = [-1]*n def set_n(l, r, rev, cur): if not rev: for i in range(l, r): ans[i] = cur cur += 1 else: for i in range(r-1, l-1, -1): ...
output
1
85,445
12
170,891
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,446
12
170,892
Tags: constructive algorithms, divide and conquer Correct Solution: ``` def gbpx(i,j): global k if(k==1): return else: if(j-i==1): return else: k-=2 mid=(i+j)//2 a=s[mid-1] b=s[mid] s[mid-1]=b s[mid]=a gbpx(i...
output
1
85,446
12
170,893
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,447
12
170,894
Tags: constructive algorithms, divide and conquer Correct Solution: ``` import random, math from copy import deepcopy as dc calls = 1 # Function to call the actual solution def solution(n, k): if k % 2 == 0 or k > (2 * n) - 1: return -1 li = [i for i in range(1, n+1)] def mergeCount(li, s, e, k): global calls...
output
1
85,447
12
170,895
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,448
12
170,896
Tags: constructive algorithms, divide and conquer Correct Solution: ``` def create_list(n, num_of_calls): if n == 1: return [1], 0 if n == 2: return [2, 1], 2 if num_of_calls == 2: return list(range(2, n // 2 + 2)) + [1] +\ list(range(n // 2 + 2, n + 1)), 2 list1,...
output
1
85,448
12
170,897
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,449
12
170,898
Tags: constructive algorithms, divide and conquer Correct Solution: ``` from sys import stdin, setrecursionlimit, stdout #setrecursionlimit(1000000) #use "python" instead of "pypy" to avoid MLE from collections import deque from math import sqrt, floor, ceil, log, log2, log10, pi, gcd, sin, cos, asin from heapq import ...
output
1
85,449
12
170,899
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,450
12
170,900
Tags: constructive algorithms, divide and conquer Correct Solution: ``` ##Right most (mid) not taking as inclusive size, call_no = map(int, input().split()) list_val = [i for i in range(1,size+1)] def modify(list_val,l,r): global count if count == call_no or r-l<2: return mid = (l+r)//2 list_val[mid-1],list_va...
output
1
85,450
12
170,901
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,451
12
170,902
Tags: constructive algorithms, divide and conquer Correct Solution: ``` def swap(m,n): temp= arr[m] arr[m]=arr[n] arr[n]=temp def swap_and_modify(arr,l,r,k): global count if count>=k or r-l<2: return else: m=int((l+r)/2) swap(m,m-1) count+=2 swap_and_modif...
output
1
85,451
12
170,903
Provide tags and a correct Python 3 solution for this coding contest problem. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already sorted in non-descending order (that is, for an...
instruction
0
85,452
12
170,904
Tags: constructive algorithms, divide and conquer Correct Solution: ``` n,k=map(int,input().split()) if not k&1:exit(print(-1)) k-=1 a=[int(i+1) for i in range(n)] def f(l,r): global k if k<2or r-l<2:return k-=2 m=(l+r)//2 a[m],a[m-1]=a[m-1],a[m] f(l,m) f(m,r) f(0,n) if k:exit(print(-1)) for...
output
1
85,452
12
170,905
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,453
12
170,906
Yes
output
1
85,453
12
170,907
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,454
12
170,908
Yes
output
1
85,454
12
170,909
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,455
12
170,910
Yes
output
1
85,455
12
170,911
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,456
12
170,912
Yes
output
1
85,456
12
170,913
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,457
12
170,914
No
output
1
85,457
12
170,915
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,458
12
170,916
No
output
1
85,458
12
170,917
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
85,459
12
170,918
No
output
1
85,459
12
170,919
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Merge sort is a well-known sorting algorithm. The main function that sorts the elements of array a with indices from [l, r) can be implemented as follows: 1. If the segment [l, r) is already ...
instruction
0
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No
output
1
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