C. Dominated Subarray Let's call an array…

Let's call an array tt dominated by value vv in the next situation. At first, array tt should have at least 22 elements. Now, let's calculate number of occurrences of each number numnum in tt and define it as occ(num)occ(num). Then tt is dominated (b…

题意:给定一个数组,求最小的字数组使得数组里存在至少一对重复元素 题解:每个点求出他的后继在哪,然后每次贪心就这个点到他的后继为一个子数组,求出最小的就是答案 #include<iostream> #include<cstdio> #include<cstdlib> #include<cstring> #include<string> #define ll long long using namespace std; int T,n,ans; ]…

题目:受主导的子序列 题意:序列t至少有2个元素,我们称序列t被数字出现次数最多的元素v主导,且出现次数最多的元素必须是唯一的 你被给予了序列a1, a2, ..., an,计算它的最短受主导子序列,或者说这里没有这种序列 [4, 1, 2, 4, 5, 4, 3, 2, 1]的最短受主导子序列为[4, 5, 4] 链接:(受主导的子序列)[https://codeforces.com/contest/1257/problem/C] 分析:我们可以检查每个相同数字(受主导的元素)的对,求出它们之…

CF Educational Round 78 (Div2)题解报告A~E A:Two Rival Students​ 依题意模拟即可 #include<bits/stdc++.h> using namespace std; int T; int n, x, a, b; int main() { cin >> T; while(T--) { cin >> n >> x >> a >> b; if(a > b) swap(a, b…

传送门 A. Two Rival Students 签到. Code /* * Author: heyuhhh * Created Time: 2019/11/13 22:37:26 */ #include <bits/stdc++.h> #define MP make_pair #define fi first #define se second #define sz(x) (int)(x).size() #define all(x) (x).begin(), (x).end() #defi…

Best Time to Buy and Sell Stock Total Accepted: 14044 Total Submissions: 45572My Submissions Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, b…

A. Lesha and array splitting time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts.…

Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. Example: Input: [-2,1,-3,4,-1,2,1,-5,4], Output: 6 Explanation: [4,-1,2,1] has the largest sum = 6. 题目是求最大和子序列 这道…

［抄题］: Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product. Example 1: Input: [2,3,-2,4] Output: 6 Explanation: [2,3] has the largest product 6. Example 2: Input: [-2…