hdu To and Fro

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题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1200 代码: #include <stdio.h> #include <string.h> #include <math.h> #include <algorithm> #include <iostream> #include <ctype.h> #include <iomanip> #include <queue>…

hdu 1200 To and Fro(简单模拟或DP)

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1200 To and Fro Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5129 Accepted Submission(s): 3550 Problem Description Mo and Larry have devised…

HDOJ/HDU 1200 To and Fro(加密解密字符串)

Problem Description Mo and Larry have devised a way of encrypting messages. They first decide secretly on the number of columns and write the message (letters only) down the columns, padding with extra random letters so as to make a rectangular array…

HDU - 1200 To and Fro

题意:给定一个,其实是由一个图按蛇形输出而成的字符串,要求按从左到右,从上到下的顺序输出这个图. 分析: 1.把字符串转化成图 2.按要求输出图= = #include<cstdio> #include<cstring> #include<cstdlib> #include<cctype> #include<cmath> #include<iostream> #include<sstream> #include<it…

HDU - 4370 0 or 1

0 or 1 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2811 Accepted Submission(s): 914 Problem Description Given a n*n matrix Cij (1<=i,j<=n),We want to find a n*n matrix Xij (1<=i,j<…

转载：hdu 题目分类（侵删）

转载:from http://blog.csdn.net/qq_28236309/article/details/47818349 基础题:1000.1001.1004.1005.1008.1012.1013.1014.1017.1019.1021.1028.1029. 1032.1037.1040.1048.1056.1058.1061.1070.1076.1089.1090.1091.1092.1093. 1094.1095.1096.1097.1098.1106.1108.1157.116…

网络流强化-HDU 3338-上下界限制最大流

题意是: 一种特殊的数独游戏,白色的方格给我们填1-9的数,有些带数字的黑色方格,右上角的数字代表从他开始往右一直到边界或者另外一个黑格子,中间经过的白格子的数字之和要等于这个数字:左下角的也是一样的意思,只是作用对象成了它下方的白格子. 思路: 既然所有行的数字之和等于所有列的数字之和,那么我们可以将行方向(向右)的点作为与源点连接的点,列方向(向下)的点作为与汇点连接的点. 由于向右和向下的点可能在同一块方格里面,以及我们需要设置每个白格子的容量,所以我们需要拆点. 题目要求填1-9的数,所…