题目链接 算法:DFS 刚开始卡了我一下,我竟然傻到用二维来放皇后= =.导致一直TLE.... 其实用1维就行了的,下标为行(列),值为列(行) 我是用下标为列做的. 上代码 #include <iostream> using namespace std; int n, ans = 0; int map[14]; void dfs(int x) { if(x > n) {ans++; return;} int i, j; for(i = 1; i <= n; i++) //放在某…
Follow up for N-Queens problem. Now, instead outputting board configurations, return the total number of distinct solutions. 这道题是之前那道N-Queens N皇后问题 的延伸,说是延伸其实我觉得两者顺序应该颠倒一样,上一道题比这道题还要稍稍复杂一些,两者本质上没有啥区别,都是要用回溯法Backtracking来解,如果理解了之前那道题的思路,此题只要做很小的改动即可,不…
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all distinct solutions to the n-queens puzzle. Each solution contains a distinct board configuration of…
N-Queens The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all distinct solutions to the n-queens puzzle. Each solution contains a distinct board configur…