LeetCode55. Jump Game

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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:
A = [2,3,1,1,4], return true.

A = [3,2,1,0,4], return false.

题意:

从起点跳跃,每次跳跃的最大步数为该位置的数组值,判断能否最后跳到最后一个位置。

思路:

贪心。如果数组中没有0的话,肯定能走到最后一个位置上。

每次跳跃都选择跳到最远处,如果最后能跳到最后一个位置上或最后一个位置之后,那么返回true。

(每次开始跳跃的位置一定要在得到的最大跳跃范围内)

代码:

class Solution {
public:
    bool canJump(vector<int>& nums) {
        int n=nums.size();
        int distance = 0;
        for(int i = 0;i < n && i <= distance;++i){
            distance = max(nums[i]+i,distance);
        }
        if(distance < n-1){
            return false;
        }
        return true;
    }
};
AgentScope实战训练营-Java开发HITL人机协作AI应用完整指南 本文手把手带你从零搭建一个基于 Spring Boot WebFlux + AgentScope + 通义千问的人机协作(HITL)AI 聊天应用。项目涵盖流式对话、工具调用、高危操作确认、对话中断、动态 MCP 工具接入、中英文双语界面等完整功能。文章从环境准备、pom.xml 配置、DTO 数据模型、Hook 机制、AgentService 核心服务、ChatController 接口到前端 HTML/CSS/JS 实现,逐一讲解每行代码的设计意图,并附带 REST API 接口说明、测试场景、常见问题 阅读详情

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