wyh2000 and a string problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others) Total Submission(s): 484    Accepted Submission(s): 232 Problem Description Young theoretical computer scientist wyh2000 is teaching you…

https://codeforc.es/contest/1194/problem/B 好像也没什么思维,就是一个水题,不过蛮有趣的.意思是找缺黑色最少的行列十字.用O(n)的空间预处理掉一维,然后用O(n)的时间根据另一维计算出答案. #include<bits/stdc++.h> using namespace std; typedef long long ll; int n, m; string g[50005]; int rq[50005]; int main() { #ifdef Yi…

题目链接: Water problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 23    Accepted Submission(s): 14 Problem Description If the numbers 1 to 5 are written out in words: one, two, three, four, fi…

一.Description Eva的家庭作业里有很多数列填空练习.填空练习的要求是:已知数列的前四项,填出第五项.因为已经知道这些数列只可能是等差或等比数列,她决定写一个程序来完成这些练习. Input 第一行是数列的数目t(0 <= t <= 20).以下每行均包含四个整数,表示数列的前四项.约定数列的前五项均为不大于10^5的自然数,等比数列的比值也是自然数. Output 对输入的每个数列,输出它的前五项. 二.题解      又是水题啊,感觉不能这样下去了,不然我自己也变水了. 三.j…

题意:比如给你一个串,要求判断wyh是不是它的子序列,那么你只需要找一个w,找一个y,再找一个h,使得w在y前面,y在h前面即可.有一天小学生拿着一个串问他“wyh是不是这个串的子序列?”.但是wyh2000有重度近视眼,如果字符串中有一段连续的v(至少两个),那么他会把它看成一个w.例如,字符串vvv会被看成w,字符串vvwvvv会被看成www,字符串vwvv会被看成vww.请问wyh2000会怎么回答这个问题?输出yes和no. 思路:其实就是将两个以上的v换成w,再来看是否能有'wyh'子…

代码: #include<cstdio> #include<cstring> using namespace std; char s[200000]; int main() { int t; scanf("%d",&t); while(t--) { scanf("%s",s); int w=0,y=0,h=0; int len=strlen(s); for(int i=0; i<len; i++) { if(w==0&&…

一.Description Problems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP, Unsolvable, Recursive). In this problem you will be analyzing a property of an algorithm whose classification is not known for all…

转载请注明出处: http://www.cnblogs.com/fraud/          ——by fraud Strange Class Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Problem Description In Vivid’s school, there is a strange class(SC). In SC, the students’ nam…

A water problem 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5832 Description Two planets named Haha and Xixi in the universe and they were created with the universe beginning. There is 73 days in Xixi a year and 137 days in Haha a year. Now you k…

题目链接: hdu:http://acm.hdu.edu.cn/showproblem.php?pid=5170 bc(中文):http://bestcoder.hdu.edu.cn/contests/contest_chineseproblem.php?cid=567&pid=1001 题解: 先用java大数幂写的,t了 import java.util.*; import java.math.*; public class Main { public static void main(St…