D. Merge Equals time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given an array of positive integers. While there are at least two equal elements, we will perform the following operatio…
这场比赛没有打,后来补了一下,第五题数位dp好不容易才搞出来(我太菜啊). 比赛传送门:http://codeforces.com/contest/1073 A. Diverse Substring 题意:给你个字符串,让你找一个子串满足任意一个字符的个数不超过其他字符的总和,输出yes或no表示否存在,如果存在输出任意一个. 这题只要找两个不同的相邻字符,因为两个字符各一个都不超过其他字符的总和,如果字符串只由一个字符组成或长度等于一才会不存在. 代码如下: #include <iostrea…
http://codeforces.com/contest/962/problem/D D. Merge Equals time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given an array of positive integers. While there are at least two equal…
A. Equator(模拟) 找权值的中位数,直接模拟.. 代码写的好丑qwq.. #include<cstdio> #include<cstring> #include<algorithm> #include<cmath> using namespace std; ; inline int read() { , f = ; ; c = getchar();} + c - ', c = getchar(); return x * f; } int N; in…
C. Make a Square time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a positive integer nn, written without leading zeroes (for example, the number 04 is incorrect). In one opera…
模拟题,运用强大的stl. #include <iostream> #include <map> #include <algorithm> #include <set> #define N 150005 using namespace std; typedef long long Int; ; map<long long, set<int> > mapp; long long a[N]; int main() { int n; cin…
http://codeforces.com/contest/962/problem/E E. Byteland, Berland and Disputed Cities time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The cities of Byteland and Berland are located on the a…
A. Equator time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp has created his own training plan to prepare for the programming contests. He will train for nn days, all days are numbe…
C. Make a Square time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given a positive integer n, written without leading zeroes (for example, the number 04 is incorrect). In one operation…
E. Byteland, Berland and Disputed Cities time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also…
B. Students in Railway Carriage time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output There are nn consecutive seat places in a railway carriage. Each place is either empty or occupied by a pass…
Educational Codeforces Round 65 (Rated for Div. 2)题解 题目链接 A. Telephone Number 水题,代码如下: Code #include <bits/stdc++.h> using namespace std; typedef long long ll; const int N = 2e5 + 5; int a[N] ; int n, T; char s[N] ; int main() { cin >> T; whil…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - C. Magic Ship Time Limit: 2000 mSec Problem Description Input Output The only line should contain the minimal number of days required for the ship to reach the point (x2,y2)(x2,y2). If it…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - D. Magic Gems Time Limit: 3000 mSec Problem Description Input The input contains a single line consisting of 2 integers N and M (1≤N≤10^18, 2≤M≤100). Output Print one integer, the total n…
Codeforces Educational Codeforces Round 44 (Rated for Div. 2) F. Isomorphic Strings 题目连接: http://codeforces.com/contest/985/problem/F Description You are given a string s of length n consisting of lowercase English letters. For two given strings s an…
Codeforces Educational Codeforces Round 44 (Rated for Div. 2) E. Pencils and Boxes 题目连接: http://codeforces.com/contest/985/problem/E Description Mishka received a gift of multicolored pencils for his birthday! Unfortunately he lives in a monochrome w…
Educational Codeforces Round 63 (Rated for Div. 2)题解 题目链接 A. Reverse a Substring 给出一个字符串,现在可以对这个字符串进行一次翻转,问是否存在一种方案,可以使得翻转后字符串的字典序可以变小. 这个很简单,贪心下就行了. 代码如下: Code #include <bits/stdc++.h> using namespace std; typedef long long ll; const int N = 3e5…
Educational Codeforces Round 48 (Rated for Div. 2) C. Vasya And The Mushrooms 题目链接:https://codeforces.com/contest/1016/problem/C 题意: emmm,说不清楚,还是直接看题目吧. 题解: 这个题人行走的方式是有一定的规律的,最后都是直接走到底,然后从另外一行走回来.并且通过画图观察,会发现他走到格子的时间会有一定的规律. 所以就维护几个前缀和就行了,从1到n枚举一下,还要…
