LeetCode Q 108 - Convert Sorted Array to Binary Search TreeGiven an array where elements are sorted in ascending order,

LeetCode Q 1140 - Stone Game IIAlex and Lee continue their games with piles of stones. There are a number of piles arra

LeetCode Q 1139 - Largest 1-Bordered SquareGiven a 2D grid of 0s and 1s, return the number of elements in the largest sq

LeetCode Q 1138 - Alphabet Board PathOn an alphabet board, we start at position (0, 0), corresponding to character board

LeetCode Q 678 - Valid Parenthesis StringGiven a string containing only three types of characters: '(', ')&#

In some projects, we exposed our username and password of mySql in file .properties, which is not safe. To solve this is