Jump Game

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 = [2,3,1,1,4], return true.

A = [3,2,1,0,4], return false.

解析：

用一个状态cur表示现在能跳的最远的位置

代码：

class Solution {public:    bool canJump(vector<int>& nums) {        int len=nums.size();                int cur=0;        for (int i=0; i<len; i++)        {            if (cur>=i)            {                 if ((i+nums[i])<=cur)                continue;                cur=i+nums[i];            }            else            {                return false;            }                   }                if (cur>=(len-1))        return true;        return false;            }};