Функция: Написать функцию next(t, t1, d), которая присваивает параметру t1 время на d секунд больше, чем время t.

#include <iostream>
 
struct time
{
    unsigned int hour, minute, sec;
    time(unsigned int, unsigned int, unsigned int);
};
 
time::time(unsigned int h = 0, unsigned int m = 0, unsigned int s = 0)
{
    hour = (h > 24) ? 0 : h;
    minute = (m > 60)? 0 : m;
    sec = (s > 60)? 0 : s;
}
 
void next(const time* t, time* t1,const unsigned int d)
{
    int mm = d / 60 , hh = mm / 60;
    if((t->hour + hh) > 23)
    {
        std::cout << (t->hour +hh) / 24 << " days pass \n";
        t1->hour = (t->hour + hh) % 24;
    }
    else
        t1->hour = t->hour + (hh % 24);
    t1->minute = t->minute + (mm % 60);
    t1->sec = t->sec + (d % 60);
}
 
void time_miss(const time* t1, const time* t2, time* d)
{
    int i = 0;
    if((t2->sec - t1->sec) > 60)
    {
        i = 1;
        d->sec = t2->sec + 60 - t1->sec;
    }
    else
        d->sec = t2->sec - t1->sec;
    if((t2->minute - t1->minute -i) > 60)
    {
        d->minute = t2->minute + 60 - i - t1->minute;
        i = 1;
    }
    else
    {
        i = 0;
        d->minute = t2->minute - t1->minute;
    }
    if((t2->hour - t1->hour -i) > 24)
    {
        std::cout << "Timer2 < Timer1 \n";
        d->hour = 0;
        d->minute = 0;
        d->sec = 0;
    }
    else
    {
        d->hour = t2->hour - i - t1->hour;
    }
}
 
void print_time(time t)
{
    std::cout << t.hour << ":" << t.minute << ":" << t.sec << "\n";
}
 
void main()
{
    time t1(23,10,10), t2(12,9,7);
    next(&t1, &t2 , 86403*24);
    time* t3 = new time();
    time_miss(&t1, &t2 , t3);
    print_time(t2);
    print_time(t1);
    print_time(*t3);
 
}

time t1(23,10,10), t2(12,9,7);

time t1, t2;
    getTime (&t1);
    getTime (&t2);

void getTime (time* t)
{
    std::cout << "Enter hours: "; std::cin >> t->hour;
    std::cout << "Enter minuts: "; std::cin >> t->minute;
    std::cout << "Enter seconds: "; std::cin >> t->sec;
}