leetcode-帕斯卡三角形

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119 Pascal's Triangle II 帕斯卡三角形 II Pascal's Triangle II

给定一个索引 k,返回帕斯卡三角形(杨辉三角)的第 k 行.例如,给定 k = 3,则返回 [1, 3, 3, 1].注:你可以优化你的算法到 O(k) 的空间复杂度吗?详见:https://leetcode.com/problems/pascals-triangle-ii/description/ Java实现: class Solution { public List<Integer> getRow(int rowIndex) { List<Integer> res = new…

118 Pascal's Triangle 帕斯卡三角形杨辉三角形

给定 numRows, 生成帕斯卡三角形的前 numRows 行.例如, 给定 numRows = 5,返回[ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1]]详见:https://leetcode.com/problems/pascals-triangle/description/ Java实现: class Solution { public List<List<Integer>> generate(int numRo…

leetcode-119-Pascal's Triangle II（生成某一行的帕斯卡三角形）

题目描述: Given a non-negative index k where k ≤ 33, return the kth index row of the Pascal's triangle. Note that the row index starts from 0. Example: Input: 3 Output: [1,3,3,1] Follow up: Could you optimize your algorithm to use only O(k) extra space…

leetcode-118-Pascal's Triangle（生成具有n行的帕斯卡三角形）

题目描述: Given a non-negative integer numRows, generate the first numRows of Pascal's triangle. Example: Input: 5 Output: [ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1] ] 要完成的函数: vector<vector<int>> generate(int numRows) 说明: 1.这道题目给定一个行数,要求返回具有给定行…

【LeetCode-面试算法经典-Java实现】【118-Pascal's Triangle（帕斯卡三角形）】

[118-Pascal's Triangle(帕斯卡三角形(杨辉三角))] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5, Return [ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1] ] 题目大意给定一个正整数n,求n层帕斯卡三角…

[LeetCode] Triangle 三角形

Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below. For example, given the following triangle [ [], [,4], [6,,7], [4,,8,3] ] The minimum path sum from top to bottom is 11 (i.e.,…