Permutation Sequence Permutations II Permutations Next Permutation 参考资料: https://leetcode.com/problems/find-permutation/ https://leetcode.com/problems/find-permutation/discuss/96644/c-simple-solution-in-72ms-and-9-lines https://leetcode.com/problems/find-permutation/discuss/96663/greedy-on-java-...
Subsets With Duplicates (easy) Permutations (medium) String Permutations by changing case (medium) Balanced Parentheses (hard) Unique Generalized Abbreviations (hard) 11. Pattern: Modified Binary Search,改造过的二分 当你需要解决的问题的输入是排好序的数组,链表,或是排好序的矩阵,要求咱们寻找某些特定元...
【leetcode刷提笔记】Permutations Given a collection of numbers, return all possible permutations. For example, [1,2,3]have the following permutations: [1,2,3],[1,3,2], [2,1,3],[2,3,1], [3,1,2], and[3,2,1]. 用深度搜索的方法搜索下面的一棵树(示例,非完整的树),每次搜索到叶...
permutations ping-heng-er-cha-shu-lcof plus-one-linked-list plus-one populating-next-right-pointers-in-each-node-ii populating-next-right-pointers-in-each-node possible-bipartition power-of-four power-of-three power-of-two power-set-lcci powerful-integers powx-n prefix-and...
permutations(nums)) 11.3 和为K 的子数组(前缀和 + 哈希表优化) 给你一个整数数组nums和一个整数 k,请你统计并返回该数组中和为 k的连续子数组的个数 。mp记录每一个节点的前缀和。用当前前缀和减去目标值的结果,去查寻有多少个前缀和等于这个结果。
Permutations II 4 2 array permutation 48 Rotate Image 4 2 array 49 Anagrams 3 4 string hashtable 50 Pow(x, n) 3 5 Binary Search Math 51 N-Queens 4 3 array DFS 52 N-Queens II 4 3 array DFS 53 Maximum Subarray 3 3 array DP 54 Spiral Matrix 4 2 array 55 Jump Game 3 2 array...
903 Valid Permutations for DI Sequence 45.10% Hard 902 Numbers At Most N Given Digit Set 28.80% Hard 901 Online Stock Span 49.90% Medium 900 RLE Iterator 50.50% Medium 899 Orderly Queue 47.70% Hard 898 Bitwise ORs of Subarrays 34.70% Medium 897 Increasing Order Search Tree 65.20% Easy 896...
一、排列问题 1、leetcode第46题:https://leetcode-cn.com/problems/permutations/ //这就是一个单纯的排列问题,不要求前面的数必须在前面,要求就是每个数只能出现一次:无重复数字 class Solution { private: vector <int> tmp; vector <vector <int>> res; int vis[10] = {0}; public: 买唯送忧 2021...
Permutations Swift Medium O(2^n) O(n) Permutations II Swift Medium O(2^n) O(n) Subsets Swift Medium O(n^n) O(n) Subsets II Swift Medium O(2^n) O(n) Combinations Swift Medium O(2^n) O(n) Combination Sum Swift Medium O(2^n) O(n) Combination Sum II Swift Medium O(2^n)...
0046 Permutations Go 63.5% Medium 0047 Permutations II Go 46.4% Medium 0048 Rotate Image Go 56.6% Medium 0049 Group Anagrams Go 56.8% Medium 0050 Pow(x, n) Go 30.3% Medium 0051 N-Queens Go 46.6% Hard 0052 N-Queens II Go 57.8% Hard 0053 Maximum Subarray Go 46.5% Easy 0054...