Problem : problem
Code :
code
. I want to know the time complexity of my algorithm. Although it runs within 16 ms on leetcode but is it really O(n) time and O(1) space??
№ | Пользователь | Рейтинг |
---|---|---|
1 | tourist | 3947 |
2 | jiangly | 3734 |
3 | Radewoosh | 3646 |
4 | jqdai0815 | 3620 |
4 | Benq | 3620 |
6 | orzdevinwang | 3612 |
7 | ecnerwala | 3581 |
8 | Geothermal | 3569 |
8 | cnnfls_csy | 3569 |
10 | ksun48 | 3479 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | awoo | 162 |
2 | maomao90 | 160 |
3 | nor | 157 |
4 | adamant | 156 |
5 | cry | 155 |
5 | atcoder_official | 155 |
5 | -is-this-fft- | 155 |
8 | maroonrk | 153 |
9 | SecondThread | 147 |
10 | Petr | 146 |
Estimate time complexity of randomized algorithm
Problem : problem
Code :
class Solution
{
public:
vector<int> majorityElement(vector<int>& nums) { srand(time(NULL)); int c=0,n=nums.size(); vector <int> ans; while((n-c)>(n/3)) { int i=rand()%n,f=0; int x=nums[i]; for(int j=0;j<n&&x!=INT_MAX-1;j++) { if(nums[j]==x) { nums[j]=INT_MAX-1; f++; } } //cout<<x<<" "<<f<<" "; if(f>(n/3)) ans.push_back(x); c+=f; } return ans; }
};
. I want to know the time complexity of my algorithm. Although it runs within 16 ms on leetcode but is it really O(n) time and O(1) space??
Rev. | Язык | Кто | Когда | Δ | Комментарий | |
---|---|---|---|---|---|---|
en1 |
![]() |
aman_naughty | 2019-03-18 21:57:27 | 1029 | Initial revision (published) |
Название |
---|