C. Two strings time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given two strings a and b. You have to remove the minimum possible number of consecutive (standing one after another)…

Educational Codeforces Round 17 A. k-th divisor 水题,把所有因子找出来排序然后找第\(k\)大 view code //#pragma GCC optimize("O3") //#pragma comment(linker, "/STACK:1024000000,1024000000") #include<bits/stdc++.h> using namespace std; function<voi…

C. Simple Strings 题目连接: http://www.codeforces.com/contest/665/problem/C Description zscoder loves simple strings! A string t is called simple if every pair of adjacent characters are distinct. For example ab, aba, zscoder are simple whereas aa, add a…

又被虐了... (记一次惨痛的Codeforces) 好不容易登上去了Codeforces,22:35准时开打 第一题,一看:这不SB题嘛?直接枚举因数上啊.9min才过掉了pretest 第二题... ... 什么鬼东西??? 写了个网络流上去 TLE 看来我还是太天真了 第三题呢? 貌似是个dp,不会... 剩下的没心情看了...然后老妈催我睡觉. 于是我一觉睡到了七八点 躺床上,我不甘心又去想B题,发现好像...直接贪心模拟可做!!! 立马爬了起来去码,测样例才发现刚刚想的做法没有考虑到每…

题目链接:http://codeforces.com/contest/762/problem/D 多多分析状态:这个很明了 #include<bits/stdc++.h> using namespace std; #pragma comment(linker, "/STACK:102400000,102400000") #define ls i<<1 #define rs ls | 1 #define mid ((ll+rr)>>1) #define…

You are given two integers n and k. Find k-th smallest divisor of n, or report that it doesn't exist. Divisor of n is any such natural number, that n can be divided by it without remainder. Input The first line contains two integers n and k (1 ≤ n ≤ …

G. List Of Integers time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output Let's denote as L(x, p) an infinite sequence of integers y such that gcd(p, y) = 1 and y > x (where gcd is the greatest…

题目链接: http://codeforces.com/contest/660/problem/C 题意: 将最多k个0变成1,使得连续的1的个数最大 题解: 二分连续的1的个数x.用前缀和判断区间[i,i+x-1]里面0的个数是否小于等于k. 代码: #include<iostream> #include<cstdio> #include<vector> #include<cstring> using namespace std; ; int n,k; i…

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…

616A - Comparing Two Long Integers    20171121 直接暴力莽就好了...没什么好说的 #include<stdlib.h> #include<stdio.h> #include<math.h> #include<cstring> #include<iostream> #include<algorithm> using namespace std; string a,b;int sa,sb;…