By Github [Actions](https://github.com/LetMeFly666/LeetCode/blob/daf478368d719aee87a6b40da64013d3685d0401/.github/workflows/1problem1day-autoGenIssueEveryday.yml) | [1411.给 N x 3 网格图涂色的方案数](https://leetcode.cn/problems/number-of-ways-to-paint-n-3-grid/) | 2026-01-03