Repeat Evolution

678. Valid Parenthesis String

2 attempts over 910 days. This page compares how the solution size, thinking trace, and stuck markers changed between posts.

2 attempts

910 days apart

-4 line delta

7 best lines

8 thought lines

0 stuck attempts

Repeat lab Latest post Back to library LeetCode

Timeline Shape

Bars are normalized inside this problem, so the widest bar is the largest attempt in that metric.

Each card is a daily post, with local deltas from the previous attempt.

Attempt 1 · 07.04.2024

medium

Solution 11 lines

Thoughts 8 lines

compact rust

Are parenthesis valid with wildcard?

Full post LeetCode

Attempt 2 · 04.10.2026

medium

Solution 7 lines

Thoughts 0 lines

compact rust

910 days later lines -4 chars -86 thoughts -8

Balance braces with wildcard

Full post LeetCode

Compact generated readout from the first and latest attempts.

Solution size compressed

-4 lines, -86 chars.

Thinking trace compressed

-8 lines between first and latest attempt.

Best snapshot 04.10.2026

7 lines, 203 chars.

Honesty markers 0 stuck

0 stuck attempts, 0 one-liner attempts.