HOJ 2603 Look and Say

http://acm.hit.edu.cn/hoj/problem/view?id=2603

#include <stdio.h>
#include <string.h>

int main()
{
    int cases, n, len, i;
    char number[1024];

    scanf("%d", &cases);
    getchar();
    while (cases--)
    {
        gets(number);
        len = strlen(number);

        for (i = 0; i < len; i++)
        {
            n = 1;
            while (number[i] == number[i+1] )
            {
                n++;
                i++;
            }
            printf("%d%c", n, number[i]);
        }
        printf("\n");
    }
    
    return 0;
}