Struggling to get a functioning code for this question

Write a program to make the Arduino a stopwatch. Stopwatch should have (three) push-buttons to control the time measurement. The requirements for the stopwatch program are: - Three push-buttons should be there. One to start, one to pause, and the other to stop. - Stopwatch should be capable of recording 1/10th of a second. That is, stopwatch will record 1/10th portion of a second, seconds, and minutes. For example: 45:21:9. - Time will be displayed in the serial monitor of Arduino. - The time should be in the format: mm : ss : 1/10ths(m= minutes,s= seconds, ...; For example: 45:23:8) Explain your code via comments in the code. Run this program manually to make sure it works, you need not run this program on an actual Arduino board with the corresponding pushbutton circuits. You may want to compile your program on the Arduino compiler to check for syntax errors (Your option). Hints: Consider push-buttons are connected as it is in Lab-2 push-button circuit