Repeat Evolution
2147. Number of Ways to Divide a Long Corridor
2 attempts over 747 days. This page compares how the solution size, thinking trace, and stuck markers changed between posts.
Timeline Shape
Bars are normalized inside this problem, so the widest bar is the largest attempt in that metric.
Attempt Gallery
Each card is a daily post, with local deltas from the previous attempt.
Attempt 1 · 28.11.2023
hard2147. Number of Ways to Divide a Long Corridor
standard
kotlin
Count ways to place borders separating pairs of 'S' in 'SP' string
Attempt 2 · 14.12.2025
hard2147. Number of Ways to Divide a Long Corridor
compact
kotlin
747 days later
lines -8
chars -59
thoughts +1
Ways to split pairs of S
What Changed
Compact generated readout from the first and latest attempts.
-8 lines, -59 chars.
+1 lines between first and latest attempt.
7 lines, 177 chars.
0 stuck attempts, 0 one-liner attempts.