Adding zero with modulus division

[Tej Samra]

A simple question that I cannot solve is putting a zero in front of less than 10 digit number for time.

Example: Turn 327 minutes to hours and minutes

This would become 5:27, 5 hours and 27 minutes

but in the case of 184 minutes it should be 3:04 but output shows 3:4

This is what I have so far

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
    
    int minutes;
    cout << "Enter the number of minutes ";
    cin >> minutes;
    
    cout <<"This is " << minutes/60 << ":" << minutes%60 << endl;
    system("PAUSE");
    return (0);

[hamsterman]

http://ideone.com/sdNCN

I don't know if there is a better way to do it.

[andywestken]

Solution #1 - uses manipulator functionality (from <iomanip>)

Note that I'm setting the fill back to the default after using it. setw() auto resets so there is no need to reset the field width.

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
    int minutes;
    cout << "Enter the number of minutes ";
    cin >> minutes;
    
    cout << "This is " << minutes/60 << ":" << setfill('0') << setw(2)
         << minutes%60 << setfill(' ') << endl;
    system("PAUSE");
    return (0);
}

Solution #2 - just add an extra '0' explictly when required.

I would prob. use this approach as it avoids dragging in <iomanip> for one lone '0'

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
    int minutes;
    cout << "Enter the number of minutes ";
    cin >> minutes;

    cout << "This is " << minutes/60 << ((minutes%60 < 10) ? ":0" : ":")
         << minutes%60 << endl;
    system("PAUSE");
    return (0);
}

Though I'd prob code it more like

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
    int minutes;
    cout << "Enter the number of minutes ";
    cin >> minutes;

    int hours = minutes/60;
    minutes %= 60;
    cout <<"This is " << hours << ((minutes < 10) ? ":0" : ":")
         << minutes << endl;
    system("PAUSE");
    return (0);
}