题目: Given a collection of numbers that might contain duplicates, return all possible unique permutations. For example, [1,1,2] have ...
Permutations Given a collection of numbers, return all possible permutations. For example, , , have the following permutations: , , , , , , , , , , , , , , , and , , . 求数组元素的全排列,数组不含重复元素 算法 :递归 类似于DFS ...
2014-04-13 19:49 0 7488 推荐指数:
题目: Given a collection of numbers that might contain duplicates, return all possible unique permutations. For example, [1,1,2] have ...
Given a collection of numbers that might contain duplicates, return all possible unique permutations. For example,[1,1,2] have the following unique ...
原题地址:https://oj.leetcode.com/problems/permutations-ii/ 题意: Given a collection of numbers that might contain duplicates ...
Given a collection of numbers that might contain duplicates, return all possible unique permutations. Example: 这道题是之前那道 Permutations 的延伸 ...
Permutations II Given a collection of numbers that might contain duplicates, return all possible unique permutations. For example,[1,1,2] have ...
Permutations II Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2] have ...
Given a collection of distinct integers, return all possible permutations. Example: 这道题是求全排列问题,给的输入数组没有重复项,这跟之前的那道 Combinations 和类似,解法基本相 ...
这个比一般的backtrack要难一点,有2个限制因素。 某个元素在某次递归中只能用一次。 重复。 主要就是这2个因素。 先SORT一下。 用visited[]记录哪个元素用过,用过直接跳过 ...