hdu 4236 Repeating Characters

#include<iostream>#include<string>using namespace std;char ch[25];int main(){int n, i, j;scanf("%d", &n);while(n--){int a, b;scanf("%d%d%*c%s", &a, &b, ch);printf("%d ", a);for(i = 0; ch[i] != '\0'; i++){for(j = 0; j < b; j++)printf("%c", ch[i]);}printf("\n");}return 0;}