Code Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 8256 Accepted: 3906 Description Transmitting and memorizing information is a task that requires different coding systems for the best use of the available space. A well known system is t…

http://poj.org/problem?id=1850 -----------------http://poj.org/problem?id=1496 两题解法类似..本题为组合数学的题,要求所给字符串在排列中的位置.所用的方法为暴力枚举. 对于长度为1的字符串有a,b,c,d.......26个:长度为2的字符串有 a开头时有ab,ac,ad,ae,af.....(25,1) 25个 //()为组合数 b开头时有bc,bd,de,.....(24,1) 24个 c开头时有cd,ce,cf…

Description   1942 Transmitting and memorizing information is a task that requires different coding systems for the best use of the available space. A well known system is that one where a number is associated to a character sequence. It is considere…

组合数学....和上一题是一样的.... Word Index Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 4303 Accepted: 2439 Description Encoding schemes are often used in situations requiring encryption or information storage/transmission economy. Here, we develo…

#include <iostream> #include <string> using namespace std; int fac(int num); int C(int n,int m); int com( int n, int k ); int main() { //freopen("acm.acm","r",stdin); string s; int sum; int j; int i; // cout<<com(4,2)…

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…

poj 题目分类 按照ac的代码长度分类(主要参考最短代码和自己写的代码) 短代码:0.01K--0.50K:中短代码:0.51K--1.00K:中等代码量:1.01K--2.00K:长代码:2.01K以上. 短:1147.1163.1922.2211.2215.2229.2232.2234.2242.2245.2262.2301.2309.2313.2334.2346.2348.2350.2352.2381.2405.2406: 中短:1014.1281.1618.1928.1961.2054…

本文来自:http://www.cppblog.com/snowshine09/archive/2011/08/02/152272.spx 多版本的POJ分类 流传最广的一种分类: 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:…