Evaluate arithmetic expression
Evaluate a string arithmetic expression containing non-negative integers, the binary operators + - * /, and parentheses, with standard precedence (* and / before + and -) and left associativity. Division is integer division truncating toward zero. The expression may contain spaces. Return the integer result. Assume the expression is valid; length up to a few thousand.
Implement
evaluate_expression(expr: str) → intExamples
in
["2+3*4"]out14What a strong answer looks like
State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
0:00 of about 35 min
solution.py
InputExpectedGot
["2+3*4"]14not run yetsample