LeetCode:N-Queens I II（n皇后問題）
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 ...
原文：[LeetCode] “全排列”問題系列(一) - 用交換元素法生成全排列及其應用，例題: Permutations I 和 II, N-Queens I 和 II，數獨問題
一 開篇 Permutation，排列問題。這篇博文以幾道LeetCode的題目和引用劍指offer上的一道例題入手，小談一下這種類型題目的解法。 二 上手 最典型的permutation題目是這樣的： Given a collection of numbers, return all possible permutations. For example, , , have the followi ...
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