UVA1225 Digit Counting

#include <stdio.h>#include <string.h>int main(){int T,i,num,n,a[10];scanf("%d",&T);while(T --){memset(a,0,sizeof(a));scanf("%d",&n);for(i = 1; i <= n; i ++){ num = i;while(num){++ a[num % 10];num /= 10;}}for(i = 0; i < 10; i ++){if(!i)printf("%d",a[i]);elseprintf(" %d",a[i]);}putchar('\n'); }return 0;}