Output the minimum possible value of error after k1 operations on array A and k2operations on array B have been performed. Input The first line contains three space-separated integers n (1 ≤ n ≤ 103), k1 and k2 (0 ≤ k1 + k2 ≤ 103, k1 and k2 are non-neg...
codeforces 960B Minimize the error 题目链接:http://codeforces.com/contest/960/problem/B 题意:给你两个数字序列a,b,每个序列长度都为n,然后E=∑(a[i]-b[i])^2。现在你可以改变a,b序列中的元素k1次和k2次,每次可以使一个元素加一或者减一。使得改变结束之后E的值最小。 分析:题目要求我们分别改变a...
using namespace std; int a[105],vis[105],p; int main(){ int t; cin>>t; while(t--){ int n; cin>>n; memset(vis,0,sizeof(vis)); memset(a,0,sizeof(a)); for(int i=1;i<=n;i++)cin>>a[i]; for(int i=1;i<=n;i++){ int p=0; while(a[p]!=i)p++; while(p...
Minimize the Permutation CodeForces - 1256B 思维+暴力 You are given a permutation of length n. Recall that the permutation is an array consisting of n distinct integers from 1 to n in arbitrary order. For example, [2,3,1,5,4] is a permutation, but [1,2,2......
I was solving the problem set of Code forces when I stumbled upon this questionProtect Sheep. The question was pretty simple if we simply place dogs on all the empty spots. But if we were supposed to minimize the number of the dogs used to protect the sheep. How do we solve it then?
codeforces 598 div3 Minimize the Permutation(贪心找规律),题目大意:有n个排列数。现在定义操作:交换第i和i+1个元素。我们对每个i位置只能操作
链接:E.Replace With the Previous, Minimize 题意:给出一个字符串,每次可以选一种字母,使字符串中所有的这种字母都变小一位,比如c变b,问k次操作内可以变成的最小字典序。 思路:先计算出每个字母要变成a所需要的操作数,记作序列a,因为我们需要让字符串的字典序最小,所以位置越在前面的优先级越高,找到序列...
The stringa=a1a2…ana=a_1a_2 \dots a_na=a1a2…anis lexicographically smaller than the stringb=b1b2…bnb = b_1b_2 \dots b_nb=b1b2…bnif there exists an indexkkk(1≤k≤n1 \le k \le n1≤k≤n) such thata1=b1a_1=b_1a1=b1,a2=b2a_2=b_2a2...
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Your task is to find the lexicographically minimum possible permutation obtained by performing some of the given operations in some order. You can see the definition of the lexicographical order in the notes section. You have to answer q independent test cases. ...