852. Peak Index in a Mountain Array

Posted 2020-11-18 zhuangbijingdeboke

1 class Solution 
2 {
3 public:
4     int peakIndexInMountainArray(vector<int>& A) 
5     {
6         return max_element(A.begin(),A.end())-A.begin();
7     }
8 };

这题很简单，问题不大。