46.寻找重复数(Find the Duplicate Number) 47. Excel表列序号(Excel Sheet Column Number) 48.位1的个数(Number of 1 Bits) 49.斐波那契数列(Fibonacci Number) 50.爬楼梯(Climbing Stairs) 51. Nim游戏(Nim Game) 52.整数拆分(Integer Break) 53. Excel表列名称(Excel Sheet Column Title) 54.猜数字游...
Find theNth number in Fibonacci sequence. A Fibonacci sequence is defined as follow: The first two numbers are 0 and 1. Theith number is the sum ofi-1 th number andi-2 th number. The first ten numbers in Fibonacci sequence is: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 ... Example...
3134.Find-the-Median-of-the-Uniqueness-Array (H-) 2461.Maximum-Sum-of-Distinct-Subarrays-With-Length-K (M) 2537.Count-the-Number-of-Good-Subarrays (M+) 3298.Count-Substrings-That-Can-Be-Rearranged-to-Contain-a-String-II (M+) 3306.Count-of-Substrings-Containing-Every-Vowel-and-K-Con...
509 Fibonacci Number 斐波那契数 Java Easy 646 Maximum Length of Pair Chain 最长数对链 Java Medium 1143 Longest Common Subsequence 最长公共子序列 Java Medium 03.贪心 #English TitleChinese TitleSolutionDifficulty 45 Jump GameⅡ 跳跃游戏Ⅱ Java Medium 53 Maximum Subarray 最大子数组和 Java Easy 55 Jum...
According to the amazing property, we can calculate 1018-th fibonacci number by using little code: #include <map> #include <iostream> using namespace std; #define long long long const long M = 1000000007; // modulo map<long, long> F; long f(long n) { if (F.count(n)) return F[...
1304 Find N Unique Integers Sum up to Zero 77.10% Easy 1303 Find the Team Size *$ 90.80% Easy 1302 Deepest Leaves Sum 86.90% Medium 1301 Number of Paths with Max Score 38.70% Hard 1300 Sum of Mutated Array Closest to Target 43.10% Medium 1299 Replace Elements with Greatest Element on Ri...
LeetCode287 Medium 寻找重复元素https://leetcode-cn.com/problems/find-the-duplicate-number/ 以[2, 4, 5, 2, 3, 1, 6, 7] 为例,一共 8 个数,n + 1 = 8,n = 7,根据题目意思,每个数都在 1 和 7 之间。 2, 4, 5, 2, 3, 1, 6, 7] 为例,一共 8 个数,n + 1 = 8,n =...
分析:常用递归,这里python可以利用pos = str.find(str2),pos!=-1表示str包含str2 递归: """ Definition of TreeNode: class TreeNode: def __init__(self, val): self.val = val self.left, self.right = None, None """ class Solution: """ @param T1: The roots of binary tree T1. @para...
【题目】Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. 【解答】广度优先遍历。注意的是题目对于根节点为空的情况认为深度为 0,根节点的情况深度为 1。这其实是不正确的定义——参见...
As I’ve said from the very beginning, the purpose of handwriting code is to work through or test the logic of whatever it is you program. It’s best when you focus on resolving that first. Let’s take a classic textbook example — a program to find the nthFibonacci number. If I we...