← All problemsSign in

1541. Minimum Insertions to Balance a Parentheses String

LeetCodeStringStackGreedyOpen on judge ↗

Given a parentheses string s containing only the characters '(' and ')'. A parentheses string is balanced if: - Any left parenthesis '(' must have a corresponding two consecutive right parenthesis '))'. - Left parenthesis '(' must go before the corresponding two consecutive right parenthesis '))'. In other words, we treat '(' as an opening parenthesis and '))' as a closing parenthesis. - For e

HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
🔒
L5 Full solution
L5 unlocks only if you insist twice
solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI

Sign in to chat with the tutor and save your progress.

Sign in to start