摘要:
题链:https://www.rqnoj.cn/problem/28 题目描述 背景 大家都知道,sheep有两只可爱的宠物(一只叫神牛,一只叫神菜)。有一天,sheep带着两只宠物到狗狗家时,这两只可爱的宠物竟然迷路了…… 描述 狗狗的家因为常常遭到猫猫的攻击,所以不得不把家里前院的路修得非常复杂 阅读全文
摘要:
Leo has a grid with N × N cells. He wants to paint each cell with a specific color (either black or white). Leo has a magical brush which can paint an 阅读全文