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Write a
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List of variables:
- hours: Store the time in hours.
- minutes: Store the time in minutes.
- answer: Store the value response ‘y’ or ‘n’.
- result: To store the values of ‘A’ or ‘P’ for AM or PM.
List of functions used:
- getTime(): Used to take values of hours and minutes using call by reference parameters.
- output(): To show the output for time.
- conversion(): To convert the time either in AM or PM.
- cin(): To take input from input streams like keyboard, files etc.
- cout(): To display the output.
Summary Introduction:
Program will use the Main () method to prompt the user to enter the time in 24-hour notation and convert it in 12-hour notation. For this, three functions are provided: one for input values, second for conversion and third for output values.
Program Description:
The purpose of the program is to convert the time from 24-hour notation to 12-hour notation.
Explanation of Solution
Program:
Following is the C++ program to convert the time from 24-hour notation to 12-hour notation.
#include <iostream> using namespace std; char conversion(int& hours); void getTime(int& hours, int& minutes); void output(int hours, int minutes, char result); int main(){ int hours, minutes; char answer; do{ getTime(hours, minutes); char cp = conversion(hours); output(hours, minutes, cp); cout<< "\nDo you want to calculate for more time? "; cin>> answer; }while(answer == 'Y' || answer == 'y'); cout<< "\nThank you! "; return 0; } void getTime(int& hours, int& minutes){ //Enter the hours and minutes as call-by-reference parameters cout<< "Enter the time in hours: "; cin>> hours; cout<< "Enter the time in minutes: "; cin>> minutes; } char conversion(int& hours){ char result; int division; if(hours <= 12){ result = 'A'; } else{ division = hours % 12; if(division == 0){ hours = 00; } else{ hours = division; } result = 'P'; } return result; } void output(int hours, int minutes, char result){ cout<< "The time is: " << hours<< ":" << minutes << " " << result << "M"; cout<<endl; }
Explanation:
In the above program, under main function, getTime() function which has two parameters. Hours and minutes is called to enter the values of hours and minutes. After that, conversion() function which has one parameter is called and output is stored in the variable cp. Finally, the output() function is used to display the result.
Sample Output:
Enter the time in hours: 15 Enter the time in minutes: 24 The time is: 3:24 PM Do you want to calculate for more time? y Enter the time in hours: 11 Enter the time in minutes: 39 The time is: 11:39 AM Do you want to calculate for more time? n Thank you!
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