747.至少是其他数字两倍的最大数

😂代码实现

class Solution {
public:
    int dominantIndex(vector<int>& nums) {
        auto it = max_element(nums.begin(), nums.end());
        for(auto be = nums.begin(); be != nums.end(); ++be) 
            if(be != it && *it < 2 * (*be))
                return -1;
        return it - nums.begin();
    }
};

Accepted

250/250 cases passed (8 ms)

Your runtime beats 29.62 % of cpp submissions

Your memory usage beats 45.04 % of cpp submissions (8.4 MB)