LeetCode 51. N-Queens
Description https://leetcode.com/problems/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…
Month: June 2020
LeetCode 37. Sudoku Solver
Description https://leetcode.com/problems/sort-colors/ Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the…
LeetCode 75. Sort Colors
Description https://leetcode.com/problems/sort-colors/ Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the same color are adjacent,…
LeetCode 103. Binary Tree Zigzag Level Order Traversal
Description https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/ Given the root of a binary tree, return the zigzag level order traversal of its nodes’ values. (i.e., from left to…