Repeat Evolution

129. Sum Root to Leaf Numbers

2 attempts over 398 days. This page compares how the solution size, thinking trace, and stuck markers changed between posts.

2 attempts

398 days apart

-9 line delta

4 best lines

0 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 · 14.03.2023

medium

Solution 13 lines

Thoughts 0 lines

standard kotlin

The most trivial way is to keep sum variable outside the dfs function.

Full post LeetCode

Attempt 2 · 15.04.2024

medium

Solution 4 lines

Thoughts 0 lines

tiny kotlin

398 days later lines -9 chars -87 thoughts 0

Sum root-leaf numbers in a Binary Tree

Full post LeetCode

Compact generated readout from the first and latest attempts.

Solution size compressed

-9 lines, -87 chars.

Thinking trace steady

0 lines between first and latest attempt.

Best snapshot 15.04.2024

4 lines, 193 chars.

Honesty markers 0 stuck

0 stuck attempts, 0 one-liner attempts.