题意:给你一条字符串,让你输出字符串中字符的全排列,输出的顺序要按它给的奇葩的字典序. 题解:要输出全排列,暴力dfs可以过,但要注意题目的字典序以及相同字符的情况.如果用next_permutation()处理可以简单很多:我是先将字典序"A a B b...Z z"的每个字母赋予一个值,即从1 2 3...52.然后将给的字符串全部转换成对应的数值后,用next_permutation()进行全排列(当然 题目给的字典序有一定规律,所以也可以直接给next_permutation(…
Anagram Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 18393 Accepted: 7484 Description You are to write a program that has to generate all possible words from a given set of letters. Example: Given the word "abc", your program shoul…
题目链接:http://poj.org/problem?id=2408 World-renowned Prof. A. N. Agram's current research deals with large anagram groups. He has just found a new application for his theory on the distribution of characters in English language texts. Given such a text…
Description World-renowned Prof. A. N. Agram's current research deals with large anagram groups. He has just found a new application for his theory on the distribution of characters in English language texts. Given such a text, you are to find the la…
转自 stven_king的博客 这是一个求一个排序的下一个排列的函数,可以遍历全排列,要包含头文件<algorithm>下面是以前的笔记 (1) int 类型的next_permutation int main(){ int a[3];a[0]=1;a[1]=2;a[2]=3; do {cout<<a[0]<<" "<<a[1]<<" "<<a[2]<<endl;} while…
这是一个求一个排序的下一个排列的函数,可以遍历全排列,要包含头文件<algorithm>下面是以前的笔记 与之完全相反的函数还有prev_permutation (1) int 类型的next_permutation int main(){ int a[3];a[0]=1;a[1]=2;a[2]=3; do{cout<<a[0]<<" "<<a[1]<<" "<<a[2]<<…
ID Codes Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 6281 Accepted: 3769 Description It is 2084 and the year of Big Brother has finally arrived, albeit a century late. In order to exercise greater control over its citizens and thereby…