[Python] do-while Loop
- 2023.08.11
- Python
In C do{ ... } while(condition) In Python while True: ... if not (condition): break
Leetcode # 518. Coin Change II
https://leetcode.com/problems/coin-change-ii Solution: Top-Down DP 用 (amount, len(coins)) 作為 self.memo 的key Time Complexity: O(n * amount) Space Complexity: O(n * amount) 1 <= coins[i] <= 5000 n ...
Leetcode # 221. Maximal Square
- 2023.08.10
- ★★ Medium Dynamic Programming LeetCode
https://leetcode.com/problems/maximal-square Solution square := {top, bottom, left, right} side_length(square) := (bottom – top + 1) == (right – left + 1) dp[i][j] := side length of the ma ...
[Python] Chaining Comparison Operators (a > b and b > c → a > b > c)
- 2023.08.10
- Python
a > b and b > c→a > b > c
Leetcode # 81. Search in Rotated Sorted Array II
- 2023.08.10
- ★★ Medium Binary Method / Divide and Conquer LeetCode
https://leetcode.com/problems/search-in-rotated-sorted-array-ii Solution Leetcode # 33. Search in Rotated Sorted Array 的 solution 配合題目修改了 input 跟 output class Solution: def search(self, nums: List[int ...
Leetcode # 2616. Minimize the Maximum Difference of Pairs
https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs Solution: Greedy Method + Binary Search Greedy Method – count_valid_pairs(threshold) count_valid_pairs(threshold): 事先已將num ...
Leetcode # 33. Search in Rotated Sorted Array
- 2023.08.09
- Uncategorized
https://leetcode.com/problems/search-in-rotated-sorted-array Solution n := len(nums) nums = [numk, numk+1, …numn-1] + [num0, num1, …, numk-1] = numsA + numsB numi < numj, if i < j; 0 ...
Leetcode # 271. Encode and Decode Strings
https://leetcode.com/problems/encode-and-decode-strings Solution Time Complexity: O(len(s)) Space Complexity: O(len(strs)) (The input and output generally do not count towards the space complexity.) c ...
Leetcode # 1143. Longest Common Subsequence
- 2023.08.08
- ★★ Medium Dynamic Programming LeetCode
https://leetcode.com/problems/longest-common-subsequence Solution: Top-Down DP Time Complexity: O(len(text1) * len(text2)) Space Complexity: O(len(text1) * len(text2)) (The input and output generally ...
Leetcode # 1770. Maximum Score from Performing Multiplication Operations
https://leetcode.com/problems/maximum-score-from-performing-multiplication-operations Solution: Top-Down DP m := len(multipliers) n := len(nums) (end – start) = n – 1, n -2, …, n ...
