hdu 4813（2013长春现场赛A题）

把一个字符串分成N个字符串 每个字符串长度为m

Sample Input
1
2 5 // n m
klmbbileay

Sample Output
klmbb
ileay

 # include <iostream>
 # include <cstdio>
 # include <cstring>
 # include <algorithm>
 # include <string>
 # include <cmath>
 # include <queue>
 # include <list>
 # define LL long long
 using namespace std ;

 char s[] ;

 int main()
 {
     //freopen("in.txt","r",stdin) ;
     int T ;
     scanf("%d" , &T) ;
     while(T--)
     {
         int n , m ;
         scanf("%d %d" , &n ,&m) ;
         int i , j ;
         int cnt =  ;
         scanf("%s" , s) ;
         for (i =  ; i < n ; i++)
         {
             for (j =  ; j < m ; j++)
                 printf("%c" , s[cnt++]) ;
             printf("\n") ;
         }

     }

     return ;
 }