Перевод секунд в минуты

#include <iostream>
#include <locale>
 
 
using namespace std;
 
double minutes(double a) {
    return a/60;
}
 
 
int main() {
std::locale::global(std::locale(""));
double a;
cout<<"Введите секунды"<<endl;
cin>>a;
cout<<"После перевода секунд в минуты = "<<minutes(a)<<endl;
system("pause");

#include <iostream>
using namespace std;
 
int main()
{
    unsigned int minute;
    unsigned int second;
    
    cout << "Enter seconds: ";
    cin >> second;
    
    minute = second / 60;
    
    cout << "Minutes = " << minute;
    
    return 0;
}

#include <iostream>
using namespace std;
 
typedef struct {
    int minutes;
    int seconds;
} time_s;
 
time_s convert(int user_seconds)
{
    time_s converted;
    int minutes, seconds;
    minutes = user_seconds / 60;
    seconds = user_seconds - (minutes * 60);
    converted.minutes = minutes;
    converted.seconds = seconds;
    return converted;
}
 
int main()
{
    int seconds;
    cout << "Enter seconds: ";
    cin >> seconds;
    time_s converted;
    converted = convert(seconds);
    cout << converted.minutes << " minutes, " << converted.seconds << " seconds" << endl;
    return 0;
}

#include <iostream>
using namespace std;
 
int main()
{
    int user_seconds;
    cout << "Enter seconds: ";
    cin >> user_seconds;
 
    int minutes, seconds;
    minutes = user_seconds / 60;
    seconds = user_seconds - (minutes * 60);
    cout << minutes << " minutes, " << seconds << " seconds" << endl;
 
}