Algorithm · Rokt · Medium
Implement a calculator that evaluates a string containing a mathematical expression. The expression consists of non-negative integers and the operators +, -, *, /, as well as parentheses ( and ). The entire string represents a valid expression, and division between two integers should truncate toward zero (i.e., round down for positive results, effectively dropping the fractional part). Input Format: A single line containing the expression string. Output Format: The integer…