【Leetcode】经典的Jump Game in JAVA

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【Leetcode】经典的Jump Game in JAVA

Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For example: A =…

【一天一道LeetCode】#55. Jump Game

一天一道LeetCode系列 (一)题目 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last in…

【Leetcode】Evaluate Reverse Polish Notation JAVA

一.问题描述 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: ["2", "1", "+", "3", "*&…

[leetcode] 403. Frog Jump

https://leetcode.com/contest/5/problems/frog-jump/ 这个题目,还是有套路的,之前做过一道题,好像是贪心性质,就是每次可以跳多远,最后问能不能跳到最右边,一会找一下这道题(找到了,就是这个55. Jump Game).然后这道题,差不多是相同的意思,但是每次只能跳3个或者2个,跳了之后还要判断那个位置有没有石头,然后还要记录上一次跳的间隔,然后我就想到了要用map做一个位置到index的映射,主要用于o(1)的查找,可以用unordered_map…

leetcode面试准备: Jump Game II

1 题目 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the minimum number of…

leetcode面试准备: Jump Game

1 题目 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For example…

[Leetcode][048] Rotate Image 略详细 (Java)

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[Leetcode][Python]55: Jump Game

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 55: Jump Gamehttps://leetcode.com/problems/jump-game/ Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represe…

[Leetcode][Python]45: Jump Game II

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 45: Jump Game IIhttps://oj.leetcode.com/problems/jump-game-ii/ Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the arra…

LeetCode OJ 45. Jump Game II

Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the minimum number of jumps…

LeetCode OJ 55. Jump Game

Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For example:A = …

【LeetCode】476. Number Complement （java实现）

原题链接 https://leetcode.com/problems/number-complement/ 原题 Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range o…

【一天一道LeetCode】#45. Jump Game II

一天一道LeetCode系列 (一)题目 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the mi…