#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vi> vvi;
typedef vector<ii> vii;
typedef vector<vii> wgraf;
typedef pair<int,ii> edge;
#define UNVISITED 0
#define VISITED 1
#define INF 1000000000
#define pb push_back
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
void RESOLVER(){
int n;
cin >> n;
vector<ll> data(n);
ll ans = 0;
for (auto &i : data) cin >> i;
if (is_sorted(all(data))){
cout << 0;
return;
}
for (int i = 0; i < n; i++){
//cout << data[i] << " -- ";
ll iz = 0, der = 0;
for (int j = 0; j < i; j++){
//cout << data[j] << " ";
if (data[j]<data[i]) iz++;
}
//cout << " con ";
for (int j = i + 1; j < n; j++) {
//cout << data[j] << " ";
if (data[j] < data[i]) der++;
}
//cout << "\n";
ans += (iz * der);
}
cout << ans;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t = 1;
//cin >> t;
while(t--){
RESOLVER();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
50 ms |
2644 KB |
Output is correct |
3 |
Correct |
50 ms |
2644 KB |
Output is correct |
4 |
Correct |
51 ms |
2644 KB |
Output is correct |
5 |
Correct |
47 ms |
2644 KB |
Output is correct |
6 |
Correct |
47 ms |
2644 KB |
Output is correct |
7 |
Correct |
49 ms |
2644 KB |
Output is correct |
8 |
Correct |
45 ms |
2644 KB |
Output is correct |
9 |
Correct |
50 ms |
2644 KB |
Output is correct |
10 |
Correct |
49 ms |
2644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2077 ms |
2644 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2077 ms |
2644 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
206 ms |
384 KB |
Output is correct |
12 |
Correct |
219 ms |
376 KB |
Output is correct |
13 |
Correct |
196 ms |
376 KB |
Output is correct |
14 |
Correct |
205 ms |
376 KB |
Output is correct |
15 |
Correct |
194 ms |
340 KB |
Output is correct |
16 |
Correct |
204 ms |
460 KB |
Output is correct |
17 |
Correct |
207 ms |
460 KB |
Output is correct |
18 |
Correct |
196 ms |
340 KB |
Output is correct |
19 |
Correct |
205 ms |
388 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2077 ms |
2644 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
50 ms |
2644 KB |
Output is correct |
3 |
Correct |
50 ms |
2644 KB |
Output is correct |
4 |
Correct |
51 ms |
2644 KB |
Output is correct |
5 |
Correct |
47 ms |
2644 KB |
Output is correct |
6 |
Correct |
47 ms |
2644 KB |
Output is correct |
7 |
Correct |
49 ms |
2644 KB |
Output is correct |
8 |
Correct |
45 ms |
2644 KB |
Output is correct |
9 |
Correct |
50 ms |
2644 KB |
Output is correct |
10 |
Correct |
49 ms |
2644 KB |
Output is correct |
11 |
Execution timed out |
2077 ms |
2644 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |