Can you help me this C++ programing? Draw a flow chart before write a program. W

Question

Can you help me this C++ programing?

Draw a flow chart before write a program.

Write a program that converts from 24-hour notation to 12-hour notation. For example, it should convert 14:25 to 2:25 PM. The input is given as two integers. There should be at least three functions, one for input, one to do the conversion, and one for output. Record the AM/PM information as a value of type char,'A' for AM and 'P' for PM. Thus, the function for doing the conversions will have a call-by-reference formal parameter of type char to record whether it is AM or PM. (The function will have other parameters as well.) Include a loop that lets the user repeat this computation for new input values again and again until the user says he or she wants to end the program.

Explanation / Answer

#include<iostream>

using namespace std;

void input(int& hours, int& minutes, char& ampm)
{
   do
   {
       cout << "Enter hours between 0 to 23: ";
       cin >> hours;
       if(hours > 23 || hours<0) cout << "you have entered incorrecet values.Please try again" << endl;
   }while(hours > 23 || hours<0);
  
   do
   {
       cout << "Enter minutes between 0 to 59: ";
       cin >> minutes;
       if(minutes > 59 || minutes<0) cout << "you have entered incorrecet values.Please try again" << endl;
   }
   while(minutes > 59 || minutes<0);

        do
   {
       cout << "Enter A for AM and P for PM: ";
       cin >> ampm;
       if(ampm !='A' && ampm!='P') cout << "you have entered incorrecet values.Please try again" << endl;
   }
   while(ampm !='A' && ampm!='P');

}

void convert(int& hours, int& minutes, char& ampm)
{
if (hours > 12)
{
    //Afternoon
    hours = hours - 12;
    ampm = 'P';
}

else if (12 == hours)
{
   //Also afternoon
   ampm = 'P'; //But the hours don't change
}
else if (0 == hours)
   {
       //Morning
       hours = hours + 12;
       ampm = 'A';
   }

       else
       {
           //Hours < 12, so morning hour
           ampm = 'A'; //Hours don't change
       }
}

void output(int hours, int mins, char ampm)
{
   string col = ":";
   cout << "The time in 12-hour notation is: " << endl;

   if (mins < 10) {
       col = ":0"; //So we'll get a zero before the minutes
   }
   cout << hours << col << mins << " " << ampm << "M" << endl;
}

int main(int argc,char **argv)
{
   int hours, minutes;
   char ampm;
   char choice;
  
   do
   {
       input(hours, minutes, ampm);
       convert(hours, minutes, ampm);
       output(hours, minutes, ampm);
      
       cout << endl << "Enter Y to run again, any other key to exit: ";
       cin >> choice;
   }
   while(choice == 'y' || choice == 'Y');
  
   return 0;
}

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