Repeat Evolution

1415. The k-th Lexicographical String of All Happy Strings of Length n

2 attempts over 388 days. This page compares how the solution size, thinking trace, and stuck markers changed between posts.

2 attempts

388 days apart

-4 line delta

4 best lines

19 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 · 19.02.2025

medium

Solution 8 lines

Thoughts 10 lines

compact kotlin

kth string of abc permutations

Full post LeetCode

Attempt 2 · 14.03.2026

medium

Solution 4 lines

Thoughts 9 lines

tiny kotlin

388 days later lines -4 chars -74 thoughts -1

K-th generated abc non-repeating string

Full post LeetCode

Compact generated readout from the first and latest attempts.

Solution size compressed

-4 lines, -74 chars.

Thinking trace compressed

-1 lines between first and latest attempt.

Best snapshot 14.03.2026

4 lines, 211 chars.

Honesty markers 0 stuck

0 stuck attempts, 0 one-liner attempts.