#0222

Balanced Brackets

MediumPython25 min20 XP

Problem

Return True if the string has balanced (), [], and {} brackets. Ignore all non-bracket characters.

Why This Matters

Balanced bracket logic shows up in parsers, expression validation, HTML-like checks, and stack interview problems.

Function Signature

def is_balanced_brackets(text):

Examples

Example 1

Input"a[(b + c) * {d}]"

OutputTrue

Every closing bracket matches the most recent unmatched opening bracket.

Constraints

Return the exact requested value.
Handle edge cases cleanly.
Prefer readable Python before micro-optimizing.

CodePython

def is_balanced_brackets(text):
    """
    Input example: "a[(b + c) * {d}]"
    Return: True
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return False

def is_balanced_brackets(text):
    """
    Input example: "a[(b + c) * {d}]"
    Return: True
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return False

Visible browser tests run here when available.

Testcases1 visible / 3 hidden categories

Core example

Input"a[(b + c) * {d}]"

ExpectedTrue

Every closing bracket matches the most recent unmatched opening bracket.

Hidden Test Categories

wrong nestingextra opening bracketextra closing bracket