dfs过不了,应该用二维递推
by I_will_AKIOI @ 2023-04-01 09:12:09
@[xinyu123](/user/565265) dfs我过了
by jr_cct @ 2023-05-01 09:55:47
dx数组里不需要-1
只可能往右、下，不可能往左走
这样不可能重复走过同一个点，flag也不需要了
剩下本蒟蒻看不懂
by jr_cct @ 2023-05-01 09:58:34
@[jr_cct](/user/744029) 恭喜
by I_will_AKIOI @ 2023-05-02 22:22:52