LeetCode 0055 - Jump Game

2021-08-11 10:37:01 浏览数 (2)

Jump Game

Desicription

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.

Solution

代码语言:javascript复制
class Solution {
public:
    bool canJump(vector<int>& nums) {
        int len = nums.size();
        if(len < 2)
            return 1;
        int curFarthest = 0;
        int curEnd = 0;
        for(int i = 0; i < len; i  ){
            if(i > curFarthest)
                return 0;
            curFarthest = max(curFarthest, i   nums[i]);
            if(curFarthest >= len - 1)
                return 1;
            if(i == curEnd)
                curEnd = curFarthest;
        }
        return 0;
    }
};

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