#LeetCode JavaScript版本 目前已经有答案的题目 1-3, 7, 13, 21, 26, 38, 50, 111, 205-206, 283, 389, 415, 434, 485, 492, 496, 504, 506; the fllowing questions hava answers: 1-3, 7, 13, 21, 26, 38, 50, 111, 205-206, 283, 389, 415, 434, 485, 492, 496, 504, 506;