445. Add Two Numbers II
445. Add Two Numbers II
# Definition for singly-linked list.
# class
LeetCode
167. Two Sum II - Input array is sorted
167. Two Sum II - Input array is sorted
如果已經排序好了，
680. Valid Palindrome II
680. Valid Palindrome II
這一題是 125. Valid Palindrome 的變形，考的是如果說最多可以修改一個字元，
866. Prime Palindrome
866. Prime Palindrome
9. Palindrome Number 和 204. Count Primes
307. Range Sum Query - Mutable
307. Range Sum Query - Mutable
class BIT:
def __init_
224. Basic Calculator
224. Basic Calculator
{% hint style="info" %} 先做 227.
18. 4Sum
18. 4 Sum
class Solution:
def twoSum(self, nums: List[
2. Add Two Numbers
2. Add Two Numbers
這一題雖然不是加一，不過很類似，所以我放在一起。
# Definition for singly-linked
1485. Clone Binary Tree With Random Pointer
1485. Clone Binary Tree With Random Pointer
概念和 138. Copy
42. Trapping Rain Water
42. Trapping Rain Water
要寫這一題之前，要先了解 11. Container With Most