#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define pb push_back
#define fi first
#define se second
const ll N = 3e5+3;
const ll MOD = 1e9+7;
ll a[N],b[N],fac[N];
ll n,tmp,ans;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n;
fac[0] = 1;
for(int i=1; i<=n; i++) {
cin >> a[i];
b[i] = a[i];
fac[i] = fac[i-1] * i;
fac[i] %= MOD;
}
// sort(b+1,b+n+1);
// for(int i=1; i<=n; i++) {
// mp[b[i]] = i;
// }
// for(int i=1; i<=n; i++) a[i] = mp[a[i]];
for(int i=1; i<=n; i++) {
tmp = 0;
for(int j=i+1; j<=n; j++) {
if(a[i] > a[j]) tmp++;
}
ans += (fac[n-i] * tmp) % MOD;
ans %= MOD;
}
cout << ans + 1 << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4456 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4456 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4440 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4444 KB |
Output is correct |
17 |
Correct |
1 ms |
4696 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 KB |
Output is correct |
22 |
Correct |
1 ms |
4444 KB |
Output is correct |
23 |
Correct |
1 ms |
4444 KB |
Output is correct |
24 |
Correct |
1 ms |
4444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4700 KB |
Output is correct |
2 |
Execution timed out |
1050 ms |
10164 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Execution timed out |
1071 ms |
9352 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
4 ms |
4444 KB |
Output is correct |
3 |
Correct |
4 ms |
4444 KB |
Output is correct |
4 |
Correct |
4 ms |
4444 KB |
Output is correct |
5 |
Correct |
4 ms |
4444 KB |
Output is correct |
6 |
Correct |
4 ms |
4444 KB |
Output is correct |
7 |
Correct |
4 ms |
4444 KB |
Output is correct |
8 |
Correct |
4 ms |
4444 KB |
Output is correct |
9 |
Correct |
4 ms |
4444 KB |
Output is correct |
10 |
Correct |
4 ms |
4444 KB |
Output is correct |
11 |
Correct |
4 ms |
4444 KB |
Output is correct |
12 |
Correct |
4 ms |
4444 KB |
Output is correct |
13 |
Correct |
4 ms |
4604 KB |
Output is correct |
14 |
Correct |
4 ms |
4444 KB |
Output is correct |
15 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4456 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4440 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4444 KB |
Output is correct |
17 |
Correct |
1 ms |
4696 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 KB |
Output is correct |
22 |
Correct |
1 ms |
4444 KB |
Output is correct |
23 |
Correct |
1 ms |
4444 KB |
Output is correct |
24 |
Correct |
1 ms |
4444 KB |
Output is correct |
25 |
Correct |
1 ms |
4440 KB |
Output is correct |
26 |
Correct |
4 ms |
4444 KB |
Output is correct |
27 |
Correct |
4 ms |
4444 KB |
Output is correct |
28 |
Correct |
4 ms |
4444 KB |
Output is correct |
29 |
Correct |
4 ms |
4444 KB |
Output is correct |
30 |
Correct |
4 ms |
4444 KB |
Output is correct |
31 |
Correct |
4 ms |
4444 KB |
Output is correct |
32 |
Correct |
4 ms |
4444 KB |
Output is correct |
33 |
Correct |
4 ms |
4444 KB |
Output is correct |
34 |
Correct |
4 ms |
4444 KB |
Output is correct |
35 |
Correct |
4 ms |
4444 KB |
Output is correct |
36 |
Correct |
4 ms |
4444 KB |
Output is correct |
37 |
Correct |
4 ms |
4604 KB |
Output is correct |
38 |
Correct |
4 ms |
4444 KB |
Output is correct |
39 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
40 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Execution timed out |
1071 ms |
9352 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4456 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4440 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4444 KB |
Output is correct |
17 |
Correct |
1 ms |
4696 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 KB |
Output is correct |
22 |
Correct |
1 ms |
4444 KB |
Output is correct |
23 |
Correct |
1 ms |
4444 KB |
Output is correct |
24 |
Correct |
1 ms |
4444 KB |
Output is correct |
25 |
Correct |
1 ms |
4700 KB |
Output is correct |
26 |
Execution timed out |
1050 ms |
10164 KB |
Time limit exceeded |
27 |
Halted |
0 ms |
0 KB |
- |