Xtreme8.0 - Kabloom 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/kabloom Description The card game Kabloom is played with multiple decks of playing cards. Players are dealt 2 n cards, face up and arranged in two rows of…
Xtreme8.0 - Kabloom 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/kabloom Description The card game Kabloom is played with multiple decks of playing cards. Players are dealt 2 n cards, face up and arranged in two rows of…
Xtreme8.0 - Magic Square 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/magic-square Description Johnny designed a magic square (square of numbers with the same sum for all rows, columns and diagonals i.e. both the main di…
Sum it up 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/sum-it-up Description Minka is very smart kid who recently started learning computer programming. His coach gave him a cyclic array A having N numbers, and he has to…
Back to Square 1 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/back-to-square-1 Description The game "Back to Square 1" is played on a board that has n squares in a row and n-1 probabilities. Players take turns playi…
Play with GCD 题目连接: https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/play-with-gcd Description Minka is very smart kid who recently started learning computer programming. He learned how to calculate the Greatest Common Divisor (GC…
在二叉树中增加一行 题目描述 给定一个二叉树,根节点为第1层,深度为 1.在其第 d 层追加一行值为 v 的节点. 添加规则:给定一个深度值 d (正整数),针对深度为 d-1 层的每一非空节点 N,为 N 创建两个值为 v 的左子树和右子树. 将 N 原先的左子树,连接为新节点 v 的左子树: 将 N 原先的右子树,连接为新节点 v 的右子树. 如果 d 的值为 1,深度 d - 1 不存在,则创建一个新的根节点 v,原先的整棵树将作为 v 的左子树. Example Input: A bin…
刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F on A as follow: F(k…
Problem description A numeric sequence of ai is ordered if a1 < a2 < - < aN. Let the subsequence of the given numeric sequence (a1, a2, -, aN) be any sequence (ai1, ai2, -, aiK), where 1 <= i1 < i2 < - < iK <= N. For example, seque…
import java.util.Arrays; /** * Source : https://oj.leetcode.com/problems/unique-paths/ * * * A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). * * The robot can only move either down or right at any poin…
题目 Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example1: Input: "babad" Output: "bab" Note: "aba is also a valid answer. " Example2: Input: "…
How many ways Problem Description 这是一个简单的生存游戏,你控制一个机器人从一个棋盘的起始点(1,1)走到棋盘的终点(n,m).游戏的规则描述如下: 机器人一开始在棋盘的起始点并有起始点所标有的能量. 机器人只能向右或者向下走,并且每走一步消耗一单位能量. 机器人不能在原地停留. 当机器人选择了一条可行路径后,当他走到这条路径的终点时,他将只有终点所标记的能量. 如上图,机器人一开始在(1,1)点,并拥有4单位能量,蓝色方块表示他所能到达的点,如果他在这次路径选…
题目 here is a fence with n posts, each post can be painted with one of the k colors.You have to paint all the posts such that no more than two adjacent fence posts have the same color.Return the total number of ways you can paint the fence. 注意事项 n and…
