Ideas
emmmm,内置排序算法YYDS,三行代码解决。
Code
C++
class Solution {
public:
int thirdMax(vector<int>& nums) {
set<int> s (nums.begin(), nums.end());
nums.assign(s.begin(), s.end());
sort(nums.begin(), nums.end());
int n = nums.size();
return nums[n < 3 ? n - 1 : n - 3];
}
};
Python
class Solution:
def thirdMax(self, nums: List[int]) -> int:
nums = list(set(nums))
nums.sort()
return nums[-1 if len(nums) < 3 else -3]