题目链接: B. Problems for Round time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output There are n problems prepared for the next Codeforces round. They are arranged in ascending order by their diffi…

B. Problems for Round 题目连接: http://www.codeforces.com/contest/673/problem/B Description There are n problems prepared for the next Codeforces round. They are arranged in ascending order by their difficulty, and no two problems have the same difficult…

B. Complete the Word time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists a substring (contiguous segmen…

Ballot Analyzing Device 题目连接: http://codeforces.com/gym/100269/attachments Description Election committee of Flatland is preparing for presidential elections. To minimize human factor in ballot counting they decided to develop an automated Ballot Ana…

题目链接:http://codeforces.com/problemset/problem/723/B 题目大意: 输入n,给出n个字符的字符串,字符串由 英文字母(大小写都包括). 下划线'_' .括号'(' ')' 组成.[括号不会嵌套] 求括号外面的连续字符串最大的字符串长度和括号内的连续字符串的个数. 举例: input 37_Hello_Vasya(and_Petya)__bye_(and_OK) output 5 4 括号外面的连续的字符串最长的字符串长度为 5 括号内有 4 个连续…

http://codeforces.com/problemset/problem/749/C 题意:有n个人投票,分为 D 和 R 两派,从1~n的顺序投票,轮到某人投票的时候,他可以将对方的一个人KO,被KO的人不能投票了,这样循环,直到某一派的人全部被KO,问哪方赢. 思路:模拟..代码好懂.. #include <cstdio> #include <algorithm> #include <iostream> #include <cstring> #i…

题目链接:http://codeforces.com/problemset/problem/797/C 题意: 给你一个非空字符串s,空字符串t和u.有两种操作:(1)把s的首字符取出并添加到t的末尾.(2)把t的尾字符取出并添加到u的末尾. 问你当经过一系列操作后,s和t均为空时,字典序最小的u. 题解: 操作的本质: s为队列,t为栈. 贪心思路: (1)找到s中的最小字符c,不断出队并加入t,直至有一次出队的字符等于c,停止出队. (2)当t的尾字符小于等于s中的最小字符时,优先弹出t的尾…

题目链接:http://codeforces.com/problemset/problem/702/D 题意: 一个人要去邮局取东西,从家到达邮局的距离为 d, 它可以选择步行或者开车,车每走 k 公里就要花费 t秒修一次才可以继续开,车每公里花费 a秒,步行每公里花费 b秒.依次给出d, k, a, b, t.问最少需要花费多少时间到达邮局.车刚开始时是好的. 思路: 首先可以模拟一下,可以想到,如果车速比步速块,那么前 k公里路肯定选择坐车,因为开始时车是好的,不用花费多余的时间来修理车,否…

A. Fox and Box Accumulation time limit per test:1 second memory limit per test:256 megabytes Fox Ciel has n boxes in her room. They have the same size and weight, but they might have different strength. The i-th box can hold at most xi boxes on its t…

昨天晚上实在是=_=困...(浪了一天)就没有去打Codeforces 中午醒来看看题,还不太难. A题:模拟(水题 3minAC) // by Sirius_Ren #include <cstdio> #include <cstring> #include <algorithm> using namespace std; int a[6],sum=0,ans; bool cmp(int a,int b){return a>b;} int main() { for…