Answer:
push, pop, top, clear
Explanation:
push: add a new value
pop: remove and return top value
top: return top value without removing
clear: remove all values
From Google:
"<span>a built-in C++ function that returns the current time(according to your computer system's clock) as seconds elapsed since midnight on January 1, 1970; often used as the seed argument in the srand function; a program that uses the time function must contain the #include <ctime> directive"
I hope this helps you with your question</span>