原创 394. Decode String(Leetcode每日一題-2020.05.28)
Problem Given an encoded string, return its decoded string. The encoding rule is: k[encoded_string], where the enco
原创 974. Subarray Sums Divisible by K(Leetcode每日一題-2020.05.27)
Problem Given an array A of integers, return the number of (contiguous, non-empty) subarrays that have a sum divisi
原创 198. House Robber(Leetcode每日一題-2020.05.29)
class Solution { public: int rob(vector<int>& nums) { //f[i]表示在前i個數中,所有不選nums[i]的最大值,f[i] = max(f[i-1],
原创 84. Largest Rectangle in Histogram(Leetcode每日一題-2020.05.30)
class Solution { public: int Max(int a, int b){return a > b ? a : b;} int largestRectangleArea(vector<int>
原创 面試題64. 求1+2+…+n(Leetcode每日一題-2020.06.02)
Problem 求 1+2+…+n ,要求不能使用乘除法、for、while、if、else、switch、case等關鍵字及條件判斷語句(A?B:C)。 Example1 輸入: n = 3 輸出: 6 Example2
原创 287. Find the Duplicate Number(Leetcode每日一題-2020.05.26)
Problem Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that
原创 1431. Kids With the Greatest Number of Candies(Leetcode每日一題-2020.06.01)
Problem Given the array candies and the integer extraCandies, where candies[i] represents the number of candies tha
原创 146. LRU Cache(Leetcode每日一題-2020.05.25)
Problem Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following
原创 76. Minimum Window Substring(Leetcode每日一題-2020.05.23)
Problem Given a string S and a string T, find the minimum window in S which will contain all the characters in T in
原创 4. Median of Two Sorted Arrays(Leetcode每日一題-2020.05.24)
Problem There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted
原创 5. Longest Palindromic Substring(Leetcode每日一題-2020.05.21)
Problem Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s
原创 1371. Find the Longest Substring Containing Vowels in Even Counts(Leetcode每日一題-2020.05.20)
Problem Given the string s, return the size of the longest substring containing each vowel an even number of times.
原创 680. Valid Palindrome II(Leetcode每日一題-2020.05.19)
Problem Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrom
原创 152. Maximum Product Subarray(Leetcode每日一題-2020.05.18)
Problem Given an integer array nums, find the contiguous subarray within an array (containing at least one number)
原创 210. Course Schedule II(Leetcode每日一題-2020.05.17)
Problem There are a total of n courses you have to take, labeled from 0 to n-1. Some courses may have prerequisites