772. Basic Calculator III
772. Basic Calculator III
前面兩題解完，此題題目有變化，答案無變化
class Solution:
def
Gary Lai
133. Clone Graph
133. Clone Graph
完成這一題之前，應該先熟悉 1490. Clone N-ary Tree 這一題會用到
1485. Clone Binary Tree With Random Pointer
1485. Clone Binary Tree With Random Pointer
概念和 138. Copy
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
18. 4Sum
18. 4 Sum
class Solution:
def twoSum(self, nums: List[
224. Basic Calculator
224. Basic Calculator
{% hint style="info" %} 先做 227.
307. Range Sum Query - Mutable
307. Range Sum Query - Mutable
class BIT:
def __init_
866. Prime Palindrome
866. Prime Palindrome
9. Palindrome Number 和 204. Count Primes
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，
755. Pour Water
755. Pour Water
class Solution:
def pourWater(self, heights: List[