problem 441. Arranging Coins solution1: class Solution { public: int arrangeCoins(int n) { ; ; while(sum<=n) { curLevel += ; sum += curLevel; } ); } }; solution2: class Solution { public: int arrangeCoins(int n) { *()-)*0.5);//数学求和公式求解x,注意参数类型是否越界. }…

Problem: You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number of full staircase rows that can be formed. n is a non-negative integer and fits within the…

You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number of full staircase rows that can be formed. n is a non-negative integer and fits within the range of…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 模拟计算 二分查找 数学公式 日期 题目地址:https://leetcode.com/problems/arranging-coins/#/description 题目描述 You have a total of n coins that you want to form in a staircase shape, where every k-th…

static int wing=[]() { std::ios::sync_with_stdio(false); cin.tie(NULL); ; }(); class Solution { public: int arrangeCoins(int n) { +0.25)-0.5; } }; 直接数学公式解题…

你总共有 n 枚硬币,你需要将它们摆成一个阶梯形状,第 k 行就必须正好有 k 枚硬币.给定一个数字 n,找出可形成完整阶梯行的总行数.n 是一个非负整数,并且在32位有符号整型的范围内.示例 1:n = 5硬币可排列成以下几行:¤¤ ¤¤ ¤因为第三行不完整,所以返回2. 示例 2:n = 8硬币可排列成以下几行:¤¤ ¤¤ ¤ ¤¤ ¤因为第四行不完整,所以返回3.详见:https://leetcode.com/problems/arranging-coins/description/ C+…

441. Arranging Coins Easy You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number of full staircase rows that can be formed. n is a non-negative integer an…

Leetcode之二分法专题-441. 排列硬币(Arranging Coins) 你总共有 n 枚硬币,你需要将它们摆成一个阶梯形状,第 k 行就必须正好有 k 枚硬币. 给定一个数字 n,找出可形成完整阶梯行的总行数. n 是一个非负整数,并且在32位有符号整型的范围内. 示例 1: n = 5 硬币可排列成以下几行: ¤ ¤ ¤ ¤ ¤ 因为第三行不完整,所以返回2. 示例 2: n = 8 硬币可排列成以下几行: ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ 因为第四行不完整,所以返回3. 读题,问题…

You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number of full staircase rows that can be formed. n is a non-negative integer and fits within the range of…

You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly k coins. Given n, find the total number of fullstaircase rows that can be formed. n is a non-negative integer and fits within the range of…