14.How many minutes？——C语言初学者百题大战之六

#include <stdio.h>
int main()
{
    int h1,m1,m2,h2;
    scanf("%d:%d",&h1,&m1);
    scanf("%d:%d",&h2,&m2);
    printf("%d",h2*60-h1*60+m2-m1);
    return 0;
}