壹道C語言編程題求助：計算時間差V1.0

int?main()

{?

int?h1,s1,h2,s2,h3,s3;;

printf("Input?time?one(hour,second):");

scanf("%d,%d",&h1,&s1);

printf("Input?time?two(hour,second):");

scanf("%d,%d",&h2,&s2);

h3=h1-h2;

s3=s1-s2;

if(s3<0&&h3==0)s3=-s3;

else?if(h3<0)h3=-h3,?s3=-s3;

if(s3<0)?h3-=1,?s3+=60;

printf("%d?hour?%d?second\n",h3,s3);

}