50224. Largest Digit Sum

#include <stdio.h>
 
int main(){
    int num;
    int max_sum = -1, max_cnt, max_num;
    while(scanf("%d", &num) != EOF){
        int now_sum = 0, now_cnt = 0, now_num = 0;
        now_num = num;
        while(num != 0){
            now_sum += (num % 10);
            num /= 10;
            now_cnt++;
        }
 
        if((now_sum > max_sum) ||
           (now_sum == max_sum && now_cnt < max_cnt) ||
           (now_sum == max_sum && now_cnt == max_cnt && now_num > max_num)){
            max_sum = now_sum;
            max_cnt = now_cnt;
            max_num = now_num;
        }
 
    }
    printf("%d\n", max_num);
}