#include <iostream>
#include <vector>
#include <algorithm>
#include <utility>
#define pii pair<int, int>
#define piii pair<int, pii>
#define pll pair<long long, long long>
#define plll pair<long long, pll>
#define ff first
#define ss second
#define ee ss.ff
#define rr ss.ss
#define DEBUG
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n; cin >> n;
int arr[n]; for(auto &i : arr) cin >> i;
vector<int> Q;
int ans = 0;
for(int i = 0; i < n; ++i)
{
while(Q.size() && Q.back() > arr[i]) Q.pop_back(), ++ans;
if(Q.empty() || Q.back() != arr[i]) Q.push_back(arr[i]);
}
cout << ans + Q.size();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
3 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
4 |
Incorrect |
4 ms |
492 KB |
Output isn't correct |
5 |
Incorrect |
6 ms |
620 KB |
Output isn't correct |
6 |
Correct |
13 ms |
1132 KB |
Output is correct |
7 |
Incorrect |
13 ms |
748 KB |
Output isn't correct |