Minute Program output problems

Hey, i'm just learning c++ and a program i wrote awhile ago i am going back to fix and am having problems.

Specs: obtain minutes from user then output as hours:minutes
example: input 327 from user output 5:27

problem i'm having is if they input 302 etc. i get 5:2 rather than 5:02 or if they put 300 minutes it comes out with 5:0

My book says it's possible and says (hint: Use the modulus operator)

what i have:
===========================

Code:

---

#include <iostream.h>

int main ()
{
        int minutes;
       
        cout << endl;
        cout << endl;
        cout << "\tEnter the number of minutes: ";
        cin >> minutes;



        cout << "\tThis is " << (minutes/60) << ":" << (minutes%60);

        cout << endl;
        cout << endl;
        cout << endl;
        cout << "\t";
        return (0);
}

---

Code:

---

#include <iostream.h>

int main ()
{
        int minutes;
       
        cout << endl;
        cout << endl;
        cout << "\tEnter the number of minutes: ";
        cin >> minutes;



        cout << "\tThis is " << (minutes/60) << ":";
        if((minutes%60)<10)
                cout<<"0"<<minutes%60;
        else
                cout<<minutes%60;

        cout << endl;
        cout << endl;
        cout << endl;
        cout << "\t";
        return (0);
}

---

-LC

Thanks for that speedy response man i was pretty suprised, but i can't use if else statements or any if type statements says i am able to do it with simply using mod

i dont think you can because the '0' won't be included if it's less than 10 no matter what, but if it explicitly says just ifs and elses try:

Code:

---

#include <iostream.h>
#include <iomanip.h>
int main ()
{
        int minutes;
       
        cout << endl;
        cout << endl;
        cout << "\tEnter the number of minutes: ";
        cin >> minutes;



        cout << "\tThis is " << (minutes/60) << ":";
        minutes%60<10 ? cout<<"0"<<minutes%60 : cout<<minutes%60;


        cout << endl;
        cout << endl;
        cout << endl;
        cout << "\t";
        return (0);
}

---

-LC

Code:

---

#include <iostream> //iostream, not iostream.h
#include <iomanip> // for setw

using namespace std;

int main ()
{
        int minutes;
       
        cout << endl;
        cout << endl;
        cout << "\tEnter the number of minutes: ";
        cin >> minutes;



        cout << "\tThis is " << (minutes/60) << ":" << setw( 2 )<< (minutes%60);

        cout << endl;
        cout << endl;
        cout << endl;
        cout << "\t";
        return (0);
}

---

XSquared is right but that doesn't output a 0 it just has a space.

-LC

Code:

---

cout << "\tThis is " << (minutes/60) << ":" << setfill( '0' ) << setw( 2 )<< (minutes%60);

---

wow, i'll be darned there is a way. I didn't know about setfill tho. hmm, that could prove usefull.

-LC

Write a program that allows the user to enter a time in minutes
and then displays the time in hours:minutes format. The program output should look similar to:

Enter teh number of minutes: 327
This is 5:27

Be sure toe consider ime where the number of minutes left over is fewer than 10. For example, 184 minutes should display 3:04. (Hint: use the modulus operator.)


This is the actual problem that is in my textbook, it is in the lawrenceville press A guide to programming in C++ book, and because it says use modulus operator it makes me think i have to use it 2x's or something but it's in chapter 3 of the book so it's simple stuff no other binaries or if statments etc. so it must be possible since it's a published problem in a educational textbook.

Code:

---

int num = 502;
int digit = num % 10;
// Right now: digit = 2;

num = num / 10;
digit = num % 10;
// Right now: digit = 0;

num = num / 10;
digit = num % 10;
// Right now: digit = 5;

---

Does that help?

other than that it's not
0 will never appear before a number without a special flag set or a function to output it as such. Or an IF statement.

[edit]: I am again proven wrong!

-LC

Well, you could always do:


cout << "\tThis is " << (minutes/60) << ":" << ((minutes%60)/10) << ((minutes%60)%10);

Thanks for the awesome help guys i really appreciate it, it works great now, glad i've found somewhere i can get help if i need it.