C语言————计算时间差

#include <stdio.h> int main(){ int day1,day2; int hours1,hours2; scanf("%d %d %d",&day1,&hours1); scanf("%d %d %d",&day2,&hours2); int a1=day1*24+hours1; int a2=day2*24+hours2; if(a1>a2){ int day3=a1-a2; printf("时间差是%d天%d时",&day3/24,&day3%24); } else{ int day3=a2-a1; printf("时间差是%d天%d时",&day3/24,&day3%24); return 0; } }