解题哟哟！ac必过！关注我+点赞哟！

#include<iostream>
using namespace std;
int main(){
    int t1,t2;
    int h1,h2,m1,m2,s1,s2;
    cin>>h1>>m1>>s1;
    cin>>h2>>m2>>s2;
    t1=h1*3600+m1*60+s1;
    t2=h2*3600+m2*60+s2;
    if(t2>t1)cout<<t2-t1;
    else if(t1==t2)cout<<0;
    else{
        h2+=24;
        t2=h2*3600+m2*60+s2;
        cout<<t2-t1;
    }
}