水题,扫描一遍看是否出现价格低质量高的情况. #include<cstdio> #include<string> #include<vector> #include<cstring> #include<iostream> #include<algorithm> using namespace std; struct Node{ int a, b; Node(int a, int b){ this->a = a; this->…
A:水的问题.排序结构.看看是否相同两个数组序列. B:他们写出来1,2,3,4,的n钍对5余.你会发现和5环节. 假设%4 = 0,输出4,否则输出0. 写一个大数取余就过了. B. Fedya and Maths time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Fedya studies in a gymnasium. Fe…
Problem Codeforces #541 (Div2) - E. String Multiplication Time Limit: 2000 mSec Problem Description Input Output Print exactly one integer — the beauty of the product of the strings. Sample Input 3aba Sample Output 3 题解:这个题的思维难度其实不大,需要维护什么东西很容易想到,或…
Problem Codeforces #541 (Div2) - F. Asya And Kittens Time Limit: 2000 mSec Problem Description Input The first line contains a single integer nn (2≤n≤150000) — the number of kittens. Each of the following n−1lines contains integers xi and yi (1≤xi,…
# [Codeforces #312 div2 A]Lala Land and Apple Trees 首先,此题的大意是在一条坐标轴上,有\(n\)个点,每个点的权值为\(a_{i}\),第一次从原点开始走,方向自选(<- or ->),在过程中,若遇到一个权值>0的点,则将此权值计入答案,并归零.当次.此方向上的所有点均为0后,输出此时的答案. 然后,进行分析: 我们很容易想到这是一个贪心,我们将正的和负的分别存入两个数组,最初的方向为: \(zhengsum > fusum…
[codeforces 260]B. Ancient Prophesy 试题描述 A recently found Ancient Prophesy is believed to contain the exact Apocalypse date. The prophesy is a string that only consists of digits and characters "-". We'll say that some date is mentioned in the P…
