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学习之旅
77-组合 77-组合
LeetCode 77. CombinationsLeetCode-77 Given two integers n and k, return all possible combinations of k numbers out of th
2021-06-23
50-Pow 50-Pow
LeetCode 50. PowLeetCode Implement pow(x, n), which calculates x raised to the power n. Example 1:Input: x = 2.00000, n
2021-06-23
18/454-四数之和 18/454-四数之和
LeetCode 18. 4SumLeetCode-18 Given an array nums of n integers, return an array of all the unique quadruplets [nums[a],
2021-06-22
150-逆波兰表达式 150-逆波兰表达式
LeetCode 150. Evaluate Reverse Polish NotationLeetCode-150 Evaluate the value of an arithmetic expression in Reverse Pol
2021-06-22
1047-删除字符串中的相邻重复项 1047-删除字符串中的相邻重复项
LeetCode 1047. Remove All Adjacent Duplicates In StringLeetCode-1047 You are given a string s consisting of lowercase En
2021-06-22
17-电话号码的字母组合 17-电话号码的字母组合
LeetCode 17. Letter Combinations of a Phone NumberLeetCode-17 Given a string containing digits from 2-9 inclusive, retur
2021-06-22
15/16-三数之和 15/16-三数之和
LeetCode 15. 3SumLeetCode-15 Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that
2021-06-21
二阶常系数齐次线性微分方程 二阶常系数齐次线性微分方程
二阶常系数齐次线性微分方程的形式为: a{y}^{\prime \prime}+b{y}^{\prime}+cy=0由于是二阶线性微分方程,所以它有两个解,记为$y_1, y_2$它的特征方程为: ar^2+br+c=0写出微分方程的特征方
2021-06-20
202-快乐数 202-快乐数
LeetCode 202. Happy NumberLeetCode Write an algorithm to determine if a number n is happy. A happy number is a number de
2021-06-20
349/350-两个数组的交集 349/350-两个数组的交集
LeetCode 349. Intersection of Two ArraysLeetCode-349 Given two integer arrays nums1 and nums2, return an array of their
2021-06-20
242/383-有效的字母异位词 242/383-有效的字母异位词
LeetCode 242. Valid AnagramLeetCode-242 Given two strings s and t, return true if t is an anagram of s, and false otherw
2021-06-20
485-最大连续1的个数 485-最大连续1的个数
LeetCode 485. Max Consecutive OnesLeetCode-485 Given a binary array nums, return the maximum number of consecutive 1'
2021-06-17
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