分類：Medium | Hsing Yu = = We are the dreamers. We make it happen 'cause we can see it.

05-06

1498. Number of Subsequences That Satisfy the Given Sum Condition

05-05

1456. Maximum Number of Vowels in a Substring of Given Length

05-04

649. Dota2 Senate

04-27

319. Bulb Switcher

04-25

2336. Smallest Number in Infinite Set

04-20

662. Maximum Width of Binary Tree

04-19

1372. Longest ZigZag Path in a Binary Tree

04-15

516. Longest Palindromic Subsequence

04-13

946. Validate Stack Sequences

04-12

71. Simplify Path