CodeForces-1201B 思维题 一、内容 题意:给定一个序列,每次选择2个元素(下标不同)分别减去1,问最后能否全部为0。 二、思路 每次减2,所以和必须是偶数。 最大的数必须小于等于 sum/2。 三、代码...CodeForces - 224B:Array(思维题) Discription You’ve got an array a, consisting of n integers: ...
Input The first line contains a single integernn (2≤n≤1052≤n≤105) — the size of the array. The second line containsnn integersa1,a2,…,ana1,a2,…,an (1≤ai≤1091≤ai≤109) — the elements of the array. Output Print "YES" if it is possible to make all elements zero, other...
Input The first line contains a single integernn (2≤n≤1052≤n≤105) — the size of the array. The second line containsnn integersa1,a2,…,ana1,a2,…,an (1≤ai≤1091≤ai≤109) — the elements of the array. Output Print "YES" if it is possible to make all elements zero, other...
You are given an array of integersaaaof sizennn. This array is non-decreasing, i. e.a1≤a2≤⋯≤ana_1 \le a_2 \le \dots \le a_na1≤a2≤⋯≤an. You have to find arrays of integersbbbof size2n−12n - 12n−1, such that: ...
题目链接:http://codeforces.com/contest/1059/problem/B 题意:给你一个图形,再给你一个n*m的图形,问是否能印出来这个图形。 这个是初始图形,问给你的图形是否能有这个印出来。 解释一下这组样例 题解:暴力匹配上下左右,左上,左下,右上,右下八个点,然后打上标记,并做统计。最开始统计一下‘#’的个数...
Zero Array CodeForces - 1201B B. Zero Array You are given an array a1,a2,…,an. In one operation you can choose two elements ai and aj (i≠j) and decrease each of them by one. You need to check whether it is possible to ma......
You are given an array aa consisting of nn positive integers. Initially, you have an integer x=0x=0. During one move, you can do one of the following two operations: Choose exactly one ii from 11 to nn and increase aiai by xx (ai:=ai+xai:=ai+x), then increase xx by 11 (x:=...
代码: intt;intn,k;ll x;map<ll,ll>mp;intmain(){ios::sync_with_stdio(false);cin.tie(0);cin>>t;while(t--){cin>>n>>k;mp.clear();ll mx=0;ll num;for(inti=1;i<=n;++i){cin>>x;x%=k;if(x!=0){mp[x]++;if(mp[x]>mx){mx=mp[x];num=k-x;}elseif(mp[x]==mx&&...
Codeforces Round #653 (Div. 3)D. Zero Remainder Array 地址:http://codeforces.com/enter?back=%2Fcontest%2F1374%2Fproblem%2FD 题意: n个数,k x初始为0, 操作1:+ai,x++ 操作2:x++ 问使得所有数均能整除k的最小操作数。每个数只能被加一次。
Codeforces Round 618 (Div. 2) 的非零问题是什么? Codeforces Round 618 (Div. 2)的非零问题难度如何? 如何解决Codeforces Round 618 (Div. 2)的非零问题? 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Guy-Manuel and Thomas have an array a of n integers [a1,a2,…,an]. In one step th...