Advertisement

## Program to determine the angle between the hands of a clock.

Ask the user to enter two int numbers - h for hours, and m for minutes. Write a program to determine the angle between the hands of a clock.

**Step 1: **First create a function that takes two int type of arguments - hour and minute.

float getAngle(int h, int m) { // first calculate angle for hours clock // The angle is measured in degrees // from the mark of number 12 clockwise. // how many minutes have elapsed? int totalMinutes = 60 * h + m; // hours clock travels (360 / 12 ) / 60 // = 0.5 degrees in one minute. total degrees? float angleHours = totalMinutes * 0.5f; // next take the minutes hand // it travels 360 degrees in 60 minutes // so in one minute it travels = // 360 / 60 = 6 degrees. total angle? float angleMinutes = m * 6.0f; // the difference float angle = angleMinutes - angleHours; // if it is negative, make absolute if(angle < 0) { angle *= -1; } // if it is reflex, correct it if(angle > 180) { angle -= 180; } return angle; }

**Step 2: **Call the above function from your main.

int main() { int h, m; cout << "Enter hours[0-11]: "; cin >> h; cout << "Enter minutes[0-59]: "; cin >> m; if(h > 11 || m > 59 || h < 0 || m < 0) { cout << "Bad input" << endl; return 0; } cout << "Angle is: " << getAngle(h, m) << endl; return 0; }

## My C/C++ Videos on Youtube

Here is the complete playlist for video lectures and tutorials for the absolute beginners. The language has been kept simple so that anybody can easily understand them. I have avoided complex jargon in these videos.

This Blog Post/Article "Program to determine the angle between the hands of a clock" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-05-17.

Advertisement