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Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,972
14
5,944
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a , b = map( int,input().split()) if a==b==0 or abs(a-b)>1: print('NO') else: print('YES') ```
output
1
2,972
14
5,945
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,973
14
5,946
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` n,m=map(int, input().split()) if n==0 and m==0: print('NO') elif abs(n-m)<=1: print('YES') else: print('NO') ```
output
1
2,973
14
5,947
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,974
14
5,948
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b=map(int, input().split()) if a-b==1 or b-a==1 or (a==b and a!=0): print('YES') else: print('NO') ```
output
1
2,974
14
5,949
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,975
14
5,950
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b=map(int,input().split()) if a==0 and b==0: print('NO') else: print('YES' if abs(a-b)<=1 else 'NO') ```
output
1
2,975
14
5,951
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,976
14
5,952
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b=map(int, input().split()) if abs(a-b)<=1 and not(a==b==0): print("YES") else: print("NO") ```
output
1
2,976
14
5,953
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,977
14
5,954
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b = map(int,input().split()) if(a==b and a==0): print("NO") else: print("YES" if (abs(a-b)<=1) else "NO") ```
output
1
2,977
14
5,955
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,978
14
5,956
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b=map(int,input().split(' ')) l=0 if a==b or a==b-1 or b==a-1: if a+b!=0: print ("YES") l=l+1 if l==0: print ("NO") ```
output
1
2,978
14
5,957
Provide tags and a correct Python 3 solution for this coding contest problem. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped things, it is possible that it has something to do ...
instruction
0
2,979
14
5,958
Tags: brute force, constructive algorithms, implementation, math Correct Solution: ``` a,b=map(int,input().split()) if a+b>0 and abs(a-b)<=1: print("YES") else: print("NO") ```
output
1
2,979
14
5,959
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On her way to programming school tiger Dasha faced her first test — a huge staircase! <image> The steps were numbered from one to infinity. As we know, tigers are very fond of all striped thin...
instruction
0
2,984
14
5,968
No
output
1
2,984
14
5,969
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Petya and Vasya got employed as couriers. During the working day they are to deliver packages to n different points on the line. According to the company's internal rules, the delivery of packag...
instruction
0
3,047
14
6,094
No
output
1
3,047
14
6,095
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Petya and Vasya got employed as couriers. During the working day they are to deliver packages to n different points on the line. According to the company's internal rules, the delivery of packag...
instruction
0
3,048
14
6,096
No
output
1
3,048
14
6,097
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Petya and Vasya got employed as couriers. During the working day they are to deliver packages to n different points on the line. According to the company's internal rules, the delivery of packag...
instruction
0
3,049
14
6,098
No
output
1
3,049
14
6,099
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Petya and Vasya got employed as couriers. During the working day they are to deliver packages to n different points on the line. According to the company's internal rules, the delivery of packag...
instruction
0
3,050
14
6,100
No
output
1
3,050
14
6,101
Provide a correct Python 3 solution for this coding contest problem. A rabbit Taro decided to hold a party and invite some friends as guests. He has n rabbit friends, and m pairs of rabbits are also friends with each other. Friendliness of each pair is expressed with a positive integer. If two rabbits are not friends,...
instruction
0
3,284
14
6,568
"Correct Solution: ``` #!usr/bin/env python3 from collections import defaultdict,deque from heapq import heappush, heappop import sys import math import bisect import random def LI(): return [int(x) for x in sys.stdin.readline().split()] def I(): return int(sys.stdin.readline()) def LS():return [list(x) for x in sys.st...
output
1
3,284
14
6,569
Provide a correct Python 3 solution for this coding contest problem. A rabbit Taro decided to hold a party and invite some friends as guests. He has n rabbit friends, and m pairs of rabbits are also friends with each other. Friendliness of each pair is expressed with a positive integer. If two rabbits are not friends,...
instruction
0
3,285
14
6,570
"Correct Solution: ``` from itertools import product def main(): INF = 10**9 N, M = map(int, input().split()) E = [[INF]*N for i in range(N)] G = [set() for i in range(N)] D = [0]*N for i in range(M): u, v, f = map(int, input().split()); u -= 1; v -= 1 E[u][v] = E[v][u] = f ...
output
1
3,285
14
6,571
Provide a correct Python 3 solution for this coding contest problem. A rabbit Taro decided to hold a party and invite some friends as guests. He has n rabbit friends, and m pairs of rabbits are also friends with each other. Friendliness of each pair is expressed with a positive integer. If two rabbits are not friends,...
instruction
0
3,286
14
6,572
"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**13 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)] def LI(): return [int...
output
1
3,286
14
6,573
Provide tags and a correct Python 3 solution for this coding contest problem. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user thus has a non-negative amount of friends. This...
instruction
0
3,370
14
6,740
Tags: binary search, data structures, graphs, greedy, implementation, math, sortings Correct Solution: ``` def main(): n=int(input()) a=list(map(int,input().split())) a.sort(reverse=True) mod=sum(a)%2 counts=[0]*(n+1) for guy in a: counts[guy]+=1 cumcounts=[0]*(n+1) cumcounts[0]=...
output
1
3,370
14
6,741
Provide tags and a correct Python 3 solution for this coding contest problem. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user thus has a non-negative amount of friends. This...
instruction
0
3,371
14
6,742
Tags: binary search, data structures, graphs, greedy, implementation, math, sortings Correct Solution: ``` def main(): n=int(input()) a=list(map(int,input().split())) a.sort(reverse=True) mod=sum(a)%2 counts=[0]*(n+1) for guy in a: counts[guy]+=1 cumcounts=[counts[0]] for i in ra...
output
1
3,371
14
6,743
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user t...
instruction
0
3,372
14
6,744
No
output
1
3,372
14
6,745
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user t...
instruction
0
3,373
14
6,746
No
output
1
3,373
14
6,747
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user t...
instruction
0
3,374
14
6,748
No
output
1
3,374
14
6,749
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bob is an active user of the social network Faithbug. On this network, people are able to engage in a mutual friendship. That is, if a is a friend of b, then b is also a friend of a. Each user t...
instruction
0
3,375
14
6,750
No
output
1
3,375
14
6,751
Provide tags and a correct Python 3 solution for this coding contest problem. There are n seats in the train's car and there is exactly one passenger occupying every seat. The seats are numbered from 1 to n from left to right. The trip is long, so each passenger will become hungry at some moment of time and will go to...
instruction
0
3,440
14
6,880
Tags: data structures, greedy, implementation Correct Solution: ``` import sys reader = (s.rstrip() for s in sys.stdin) input = reader.__next__ from heapq import heappop, heappush, heapify from collections import deque class SWAG_Stack(): def __init__(self, F): self.stack1 = deque() self.stack2 = d...
output
1
3,440
14
6,881
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n seats in the train's car and there is exactly one passenger occupying every seat. The seats are numbered from 1 to n from left to right. The trip is long, so each passenger will beco...
instruction
0
3,441
14
6,882
No
output
1
3,441
14
6,883
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n seats in the train's car and there is exactly one passenger occupying every seat. The seats are numbered from 1 to n from left to right. The trip is long, so each passenger will beco...
instruction
0
3,442
14
6,884
No
output
1
3,442
14
6,885
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n seats in the train's car and there is exactly one passenger occupying every seat. The seats are numbered from 1 to n from left to right. The trip is long, so each passenger will beco...
instruction
0
3,443
14
6,886
No
output
1
3,443
14
6,887
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n seats in the train's car and there is exactly one passenger occupying every seat. The seats are numbered from 1 to n from left to right. The trip is long, so each passenger will beco...
instruction
0
3,444
14
6,888
No
output
1
3,444
14
6,889
Provide tags and a correct Python 3 solution for this coding contest problem. As Sherlock Holmes was investigating another crime, he found a certain number of clues. Also, he has already found direct links between some of those clues. The direct links between the clues are mutual. That is, the direct link between clue...
instruction
0
3,635
14
7,270
Tags: combinatorics, graphs Correct Solution: ``` def dfs(node, my_cc): vis[node] = True acc[my_cc]+=1 for i in adj[node]: if not vis[i]: dfs(i, my_cc) def bfs(node): vis[node] = True cola = [node] cur = 0 while (cur < len(cola)): x = cola[cur] acc[cc] += 1 cur += 1; for ...
output
1
3,635
14
7,271
Provide tags and a correct Python 3 solution for this coding contest problem. As Sherlock Holmes was investigating another crime, he found a certain number of clues. Also, he has already found direct links between some of those clues. The direct links between the clues are mutual. That is, the direct link between clue...
instruction
0
3,636
14
7,272
Tags: combinatorics, graphs Correct Solution: ``` def dfs(node, my_cc): vis[node] = True acc[my_cc]+=1 for i in adj[node]: if not vis[i]: dfs(i, my_cc) def ittDfs(node): queue = [node] curr = 0 while(queue): node = queue.pop() if vis[node]: contin...
output
1
3,636
14
7,273
Provide tags and a correct Python 3 solution for this coding contest problem. As Sherlock Holmes was investigating another crime, he found a certain number of clues. Also, he has already found direct links between some of those clues. The direct links between the clues are mutual. That is, the direct link between clue...
instruction
0
3,637
14
7,274
Tags: combinatorics, graphs Correct Solution: ``` def dfs(node, my_cc): vis[node] = True acc[my_cc]+=1 for i in adj[node]: if not vis[i]: dfs(i, my_cc) def ittDfs(node): queue = [node] curr = 0 while(queue): node = queue.pop() if vis[node]: contin...
output
1
3,637
14
7,275
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,698
14
7,396
Tags: brute force, implementation Correct Solution: ``` n,m = input().split() n =int(n) m = int(m) arr = [int(x) for x in input().split()] min = 1000000000000 ans= -1 for i in range(m): sum=0 for j in range(i,n,m): sum=sum+arr[j] if sum<min: min=sum ans=i prin...
output
1
3,698
14
7,397
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,699
14
7,398
Tags: brute force, implementation Correct Solution: ``` n, k = map(int,input().split()) a = list(map(int,input().split())) ans = 10 ** 9 sol = -1 for i in range(k): x = n // k; y = i; tmp = 0 while(x): tmp += a[y] y += k y %= n x -= 1 if tmp < ans: ans = tmp ...
output
1
3,699
14
7,399
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,700
14
7,400
Tags: brute force, implementation Correct Solution: ``` n,k=map(int,input().split()) a=list(map(int,input().split())) m=1000000000 ans=1 for i in range(k): mt=0 for j in range(i,n,k): mt+=a[j] if mt<m: m=mt ans=i+1 print(ans) ```
output
1
3,700
14
7,401
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,701
14
7,402
Tags: brute force, implementation Correct Solution: ``` from sys import * input = lambda:stdin.readline() int_arr = lambda : list(map(int,stdin.readline().strip().split())) str_arr = lambda :list(map(str,stdin.readline().split())) get_str = lambda : map(str,stdin.readline().strip().split()) get_int = lambda: map(int,s...
output
1
3,701
14
7,403
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,702
14
7,404
Tags: brute force, implementation Correct Solution: ``` n, k = list(map(int, input().split())) num = list(map(int, input().split())) dp = [0] * (2 * n) for i in range(n - 1, -1, -1): dp[i] = dp[i + k] + num[i] ans = 2**100 for i in range(0, k): ans = min(ans, dp[i]) print(dp.index(ans) + 1) ```
output
1
3,702
14
7,405
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,703
14
7,406
Tags: brute force, implementation Correct Solution: ``` def mi(): return map(int, input().split()) n,k = mi() a = list(mi()) dp = [0]*k for i in range(k): for j in range(i, n, k): dp[i]+=a[j] print (1+dp.index(min(dp))) ```
output
1
3,703
14
7,407
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,704
14
7,408
Tags: brute force, implementation Correct Solution: ``` n,k = map(int,input().split()) arr = list(map(int,input().split())) min1=100000000000 c=0 for i in range(k): sum1=sum(arr[i::k]) # print(sum1) if sum1<min1: c=i min1= sum1 print(c+1) ```
output
1
3,704
14
7,409
Provide tags and a correct Python 3 solution for this coding contest problem. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima off for everything he does in her presence. Af...
instruction
0
3,705
14
7,410
Tags: brute force, implementation Correct Solution: ``` data = input().split(" ") tasks = int(data[0]) k = int(data[1]) cost = input().split(" ") cost = [int(x) for x in cost] minCost = sum(cost) ans = 1 for i in range(k): start = i c = 0 for j in range(start, tasks, k): c += cost[j] if c < minCost: minCost = c...
output
1
3,705
14
7,411
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,706
14
7,412
Yes
output
1
3,706
14
7,413
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,707
14
7,414
Yes
output
1
3,707
14
7,415
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,708
14
7,416
Yes
output
1
3,708
14
7,417
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,709
14
7,418
Yes
output
1
3,709
14
7,419
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,710
14
7,420
No
output
1
3,710
14
7,421
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,711
14
7,422
No
output
1
3,711
14
7,423
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,712
14
7,424
No
output
1
3,712
14
7,425
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You helped Dima to have a great weekend, but it's time to work. Naturally, Dima, as all other men who have girlfriends, does everything wrong. Inna and Dima are now in one room. Inna tells Dima...
instruction
0
3,713
14
7,426
No
output
1
3,713
14
7,427
Provide tags and a correct Python 3 solution for this coding contest problem. The Berland Armed Forces System consists of n ranks that are numbered using natural numbers from 1 to n, where 1 is the lowest rank and n is the highest rank. One needs exactly di years to rise from rank i to rank i + 1. Reaching a certain ...
instruction
0
3,715
14
7,430
Tags: implementation Correct Solution: ``` n=int(input()) d=list(map(int,input().split())) a,b=list(map(int,input().split())) a-=1 b-=1 ans,i=0,0 while a<b: ans+=d[a] a+=1 print ('{0}'.format(ans)) ```
output
1
3,715
14
7,431
Provide tags and a correct Python 3 solution for this coding contest problem. The Berland Armed Forces System consists of n ranks that are numbered using natural numbers from 1 to n, where 1 is the lowest rank and n is the highest rank. One needs exactly di years to rise from rank i to rank i + 1. Reaching a certain ...
instruction
0
3,718
14
7,436
Tags: implementation Correct Solution: ``` n = int(input()) times = [int(x) for x in input().split()] a, b = [int(x) for x in input().split()] res = 0 for i in range (a - 1, b - 1): res += times[i] print(res) ```
output
1
3,718
14
7,437
Provide tags and a correct Python 3 solution for this coding contest problem. The Berland Armed Forces System consists of n ranks that are numbered using natural numbers from 1 to n, where 1 is the lowest rank and n is the highest rank. One needs exactly di years to rise from rank i to rank i + 1. Reaching a certain ...
instruction
0
3,721
14
7,442
Tags: implementation Correct Solution: ``` n=int(input()) ls=list(map(int,input().split())) a,b=map(int,input().split()) years=0 for i in range(a-1,b-1): years+=ls[i] print(years) ```
output
1
3,721
14
7,443
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Once Vasya needed to transport m goats and m wolves from riverbank to the other as quickly as possible. The boat can hold n animals and Vasya, in addition, he is permitted to put less than n ani...
instruction
0
3,739
14
7,478
No
output
1
3,739
14
7,479