OTTFF的博客

10271 - Chopsticks Time limit: 3.000 seconds In China, people use a pair of chopsticks to get food on the table, but Mr. L is a bit different. He uses a set of three chopsticks { one pair, plus an

Space Elevator Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10883   Accepted: 5185 Description The cows are going to space! They plan to achieve orbit by

Apple Tree Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9584   Accepted: 3192 Description Wshxzt is a lovely girl. She likes apple very much. One day HX t

AreYouBusy Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3887    Accepted Submission(s): 1536 Problem Description Happy New Term! As

10189 - Minesweeper Time limit: 3.000 seconds Have you ever played Minesweeper? It's a cute little game which comes within a certain Operating System which name we can't really remember. Well, th

10970 - Big Chocolate Time limit: 3.000 seconds Mohammad has recently visited Switzerland. As he loves his friends very much, he decided to buy some chocolate for them, but as this ne chocolate

油田，经典的bfs 调用bfs次数就是油田的片数 感觉还能优化貌似调用过的油田直接改回非油田就好了不用再开数组标记了 #include #include #include using namespace std; const int M=105; char ti[M][M]; int isu[M][M]; int dx[8]={-1,0,1,1,1,0,-1,-1}; int

数独，当年一家人都很疯狂的玩 如今用电脑dfs非常容易的就解决了。 判断在同一大格里可以填有点麻烦。 题目每组输入其实是9个整数，所以…… 另外就是题目要求对于有多个解的题目，输出一个可行解。#include #include using namespace std; int ss[9]; //输入这里也卡了一下 int s[9][9];

经典问题。 但是方案却不唯一，记得很早的时候写过n个循环嵌套的版本。 现在想想蠢死了。 只有八皇后是否在同一直线斜线上判断方法也有多种。 首先一行一行（或者一列一列）填皇后这个应该是没的说的。判断斜线是个要点 法1就是打一个棋盘然后每填上一个皇后就把皇后的攻击范围全部标记。回溯的时候再把皇后的攻击范围全部改回去。           判断皇后能不能在那个格子很快。但是这个填改的过程应该

Pots Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 11767   Accepted: 4981   Special Judge Description You are given two pots, having the volume of A an

ATM Mechine Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 512    Accepted Submission(s): 221 Problem Description Alice is going to ta