class Solution {
public:
bool canJump(vector<int>& nums) {
for (int i = 0, j = 0; i < nums.size(); ++i) {
if (j < i) return false;
j = max(j, i + nums[i]);
}
return true;
}
};
原文：https://www.cnblogs.com/clown9804/p/13257862.html