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…

A simple math.. take care of data overflow though. class Solution { public: int arrangeCoins(int n) { ) ; * n + 0.25) - 0.5; } };…

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…

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. }…

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…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3995 访问. 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. 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. n = 8 硬币可排列成以下几行: ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤…

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…

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…

这是悦乐书的第229次更新,第241篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第96题(顺位题号是441).您想要以楼梯形状形成总共n个硬币,其中每个第k行必须具有恰好k个硬币.给定n,找到可以形成的完整楼梯行的总数.n是一个非负整数,适合32位有符号整数的范围.例如: n = 5 硬币可以形成以下行: ¤ ¤¤ ¤¤ 因为第3行不完整,我们返回2. n = 8 硬币可以形成以下行: ¤ ¤¤ ¤¤¤ ¤¤ 因为第4行不完整,我们返回3. 本次解题使用的开发工具…

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…