Hard

Permutation Sequence LeetCode Solution

Here, We see Permutation Sequence LeetCode Solution. This Leetcode problem done in many programming language like C++, Java, JavaScript, Python etc. with different approach. List of all LeetCode Solution Permutation Sequence LeetCode Solution Problem Statement The set [1, 2, 3, …, n] contains a total of n! unique permutations. By listing and labeling all of the […]

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Leetcode Solution

N-Queens LeetCode Solution

Here, We see N-Queens LeetCode Solution. This Leetcode problem is done in many programming languages like C++, Java, JavaScript, Python, etc. with different approaches. List of all LeetCode Solution N-Queens LeetCode Solution Problem Statement The n-queens puzzle is the problem of placing n queens on an n x n chessboard such that no two queens

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Leetcode Solution

Median of Two Sorted Arrays LeetCode Solution

Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).

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Leetcode Solution

Contains Duplicate III LeetCode Solution

You are given an integer array nums and two integers indexDiff and valueDiff. Find a pair of indices (i, j) such that: i != j, abs(i – j) <= indexDiff. abs(nums[i] - nums[j]) <= valueDiff, and Return true if such pair exists or false otherwise.

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Leetcode Solution

Merge k Sorted Lists LeetCode Solution

You are given an array of k linked-lists lists, each linked-list is sorted in ascending order. Merge all the linked-lists into one sorted linked-list and return it.

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Leetcode Solution

Regular Expression Matching LeetCode Solution

Given an input string s and a pattern p, implement regular expression matching with support for ‘.’ and ‘*’ where ‘.’ Matches any single character and ‘*’ Matches zero or more of the preceding element.

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Leetcode Solution

Substring with Concatenation of All Words LeetCode Solution

You are given a string s and an array of strings words. All the strings of words are of the same length. Return the starting indices of all the concatenated substrings in s. You can return the answer in any order.

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Leetcode Solution
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