题目地址:POJ 1731 这题能够直接用STL函数做,非常轻松..next_permutation函数非常给力.. 代码例如以下: #include <algorithm> #include <iostream> #include <cstring> #include <cstdlib> #include <cstdio> #include <queue> #include <cmath> #include <st…

http://poj.org/problem?id=1731 Orders Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 9702   Accepted: 5925 Description The stores manager has sorted all kinds of goods in an alphabetical order of their labels. All the kinds having label…

题目链接:http://poj.org/problem?id=1731 思路分析:含有重复元素的全排列问题:元素个数为200个,采用暴力枚举法. 代码如下: #include <iostream> #include <algorithm> using namespace std; + ; void PrintPermu( int n, char P[], char A[], int cur ) { int i, j; if ( cur == n ) { ; i < n; ++…

#include<iostream> #include<string> #include<algorithm> using namespace std; int main() { int NUM; string list; cin>>list,NUM = list.length(),sort(&list[],&list[]+NUM),cout<<list<<endl; ],&list[]+NUM))cout&l…

The stores manager has sorted all kinds of goods in an alphabetical order of their labels. All the kinds having labels starting with the same letter are stored in the same warehouse (i.e. in the same building) labelled with this letter. During the da…

Orders Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 9940   Accepted: 6048 Description The stores manager has sorted all kinds of goods in an alphabetical order of their labels. All the kinds having labels starting with the same letter…

都到如今了还不会STL,赶紧学习一下. .. 头文件#include<algorithm> 加上 using namespace std. 求下一个排列的函数:next_permutation(first,last),当中first,last都是指针变量.求的是区间 [first.last)的下一个排列.升序求得.比若说1 2 3 下一个排列是1 3 2.最后一个排列的下一个排列是第 一个.即3 2 1-->1 2 3.据说效率也不怎么样,poj 1833用G++交TLE.C++过了.…

Log 2016-3-21 网上找的POJ分类,来源已经不清楚了.百度能百度到一大把.贴一份在博客上,鞭策自己刷题,不能偷懒!! 初期: 一.基本算法: (1)枚举. (poj1753,poj2965) (2)贪心(poj1328,poj2109,poj2586) (3)递归和分治法. (4)递推. (5)构造法.(poj3295) (6)模拟法.(poj1068,poj2632,poj1573,poj2993,poj2996) 二.图算法: (1)图的深度优先遍历和广度优先遍历. (2)最短路…

初期:一.基本算法:     (1)枚举. (poj1753,poj2965)     (2)贪心(poj1328,poj2109,poj2586)     (3)递归和分治法.     (4)递推.     (5)构造法.(poj3295)     (6)模拟法.(poj1068,poj2632,poj1573,poj2993,poj2996)二.图算法:     (1)图的深度优先遍历和广度优先遍历.     (2)最短路径算法(dijkstra,bellman-ford,floyd,hea…

初期: 一.基本算法:      (1)枚举. (poj1753,poj2965)      (2)贪心(poj1328,poj2109,poj2586)      (3)递归和分治法.      (4)递推.      (5)构造法.(poj3295)      (6)模拟法.(poj1068,poj2632,poj1573,poj2993,poj2996) 二.图算法:      (1)图的深度优先遍历和广度优先遍历.      (2)最短路径算法(dijkstra,bellman-ford…