← Questions

Sort a grid into snake order with adjacent swaps

0
UberCodingLast asked Sep 2026

An n x n board holds each number from 1 to n*n once. Rearrange it into snake order: the first row increases left to right, the second right to left, and so on, alternating.

The only move swaps two cells that share an edge. Return any sequence of swaps that reaches snake order.

Write and test your solution herePython in your browser, the question's tests level by level, every submission kept for you.Sign in to start coding