1classSolution2{3publicintarrangeCoins(intn)4{5return(int)((-1 + Math.sqrt(1 + 8.0 * n)) / 2);6}7} 参考资料:https://leetcode.com/problems/arranging-coins/discuss/92298/Java-O(1)-Solution-Math-Problem LeetCode 题目列表 -LeetCode Questions List...
参考资料: https://discuss.leetcode.com/topic/65664/my-55ms-c-solution https://discuss.leetcode.com/topic/65575/java-o-1-solution-math-problem https://discuss.leetcode.com/topic/65631/c-three-solutions-o-n-o-logn-o-1/2 LeetCode All in One 题目讲解汇总(持续更新中...)...
Spent really long time on this one… If we don’t havekconstrains, then it’s a linear sweep problem. Withkbags, we will need to have a prefix sum hash map, and if we have cumulative coins at indexi, then withkbags it would beprefix[i] - prefix[i - k]. Because of the constr...
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 fu...Leetcode#441. Arranging Coins 题目描述:有 n 个硬币,第 i 行放 i 个,返回可以放满的行数,没有防满的不算;....
leetcode441. Arranging Coins You have a totalofn coins that you want to formina staircase shape,where every k-th row must have exactly k coins.Given n,find the total numberoffull staircase rows that can be formed.n is a non-negative integer and fits within the rangeofa32-bit signed ...
题目来自leetcode3116。 大体步骤如下: 1.对给定的硬币面值数组 coins 进行排序,以便后续处理。 2.创建一个空数组 a 用于存放不同面值的硬币。 3.遍历排序后的硬币数组,对于每一个硬币 x: • 遍历数组 a 中的每个元素 y,检查是否 x 能整除 y,如果可以,则跳过该硬币 x。
原文链接:https://blog.csdn.net/coder_orz/article/details/51337420 problem description: Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the... 【Leetcode】111. Minimum Depth of Binary Tree 解题报告 ...
leetcode 993 Cousins in Binary Tree 详细解答 解法1 根据题意,互为cousin节点,必须是深度一样,父节点不一样,所以我们可以新定义一个函数,用于找出x, y的深度和父节点即可。 具体代码如下: 解法2 BFS方法来解答,像 leetcode 102。就是将节点,父节点,和节点深度都存储到队列中。 代码如下:... ...
Time limit : 2sec / Memory limit : 256MB Problem Statement There are two rooted trees, each with \(N\) vertices. The vertices of each tree are numbered \(1\) through \(N\). In the first tree, the pare...[LeetCode] 441. Arranging Coins (C++) [LeetCode] 441. Arranging Coins ...
LintCode Coins in a Line III http://www.lintcode.com/en/problem/coins-in-a-line-iii/ 题目: There arencoins in a line. Two players take turns to take a coin from one of the ends of the line until there are no more coins left. The player with the larger amount of money wins....