#include <iostream>
#include <vector>
#include <cstring>
#include <algorithm>
using namespace std;
long long int c[300000];
long long int mn[300000];
int t[100];
int main(){
int n;
cin >> n;
long long int ans = 0;
if(n >= 10005){
cin >> c[0];
t[c[0]]++;
mn[0] = 0;
for(int i = 1; i < n; i++){
cin >> c[i];
for(int j = 0; j < c[i]; j++){
mn[i] += t[j];
}
t[c[i]]++;
}
memset(t, 0, sizeof(t[0])* 100);
t[c[n - 1]]++;
for(int i = n - 2; i >= 0; i--){
long long int temp =0;
for(int j = 0; j < c[i]; j++){
temp += t[j];
}
ans += mn[i] * temp;
t[c[i]]++;
}
cout << ans;
}
else{
for(int i = 0; i < n; i++){
cin >> c[i];
}
for(int i = 1; i < n - 1; i++){
long long int a = 0, b = 0;
for(int j = 0; j < i; j++){
if(c[j] < c[i])a++;
}
for(int j = i + 1; j < n; j++){
if(c[j] < c[i])b++;
}
ans += a * b;
}
cout << ans;
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Runtime error |
1 ms |
332 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
60 ms |
4892 KB |
Output is correct |
2 |
Correct |
59 ms |
5472 KB |
Output is correct |
3 |
Correct |
62 ms |
5564 KB |
Output is correct |
4 |
Correct |
58 ms |
5444 KB |
Output is correct |
5 |
Correct |
59 ms |
5448 KB |
Output is correct |
6 |
Correct |
60 ms |
5484 KB |
Output is correct |
7 |
Correct |
66 ms |
5448 KB |
Output is correct |
8 |
Correct |
56 ms |
4420 KB |
Output is correct |
9 |
Correct |
56 ms |
4300 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
60 ms |
4892 KB |
Output is correct |
2 |
Correct |
59 ms |
5472 KB |
Output is correct |
3 |
Correct |
62 ms |
5564 KB |
Output is correct |
4 |
Correct |
58 ms |
5444 KB |
Output is correct |
5 |
Correct |
59 ms |
5448 KB |
Output is correct |
6 |
Correct |
60 ms |
5484 KB |
Output is correct |
7 |
Correct |
66 ms |
5448 KB |
Output is correct |
8 |
Correct |
56 ms |
4420 KB |
Output is correct |
9 |
Correct |
56 ms |
4300 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
90 ms |
5704 KB |
Output is correct |
12 |
Correct |
95 ms |
5828 KB |
Output is correct |
13 |
Correct |
93 ms |
5776 KB |
Output is correct |
14 |
Correct |
90 ms |
5712 KB |
Output is correct |
15 |
Correct |
91 ms |
5776 KB |
Output is correct |
16 |
Correct |
91 ms |
5776 KB |
Output is correct |
17 |
Correct |
90 ms |
5908 KB |
Output is correct |
18 |
Correct |
89 ms |
5828 KB |
Output is correct |
19 |
Correct |
89 ms |
5808 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
2 ms |
204 KB |
Output is correct |
6 |
Correct |
2 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
300 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
2 ms |
204 KB |
Output is correct |
6 |
Correct |
2 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
300 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
84 ms |
360 KB |
Output is correct |
12 |
Correct |
85 ms |
356 KB |
Output is correct |
13 |
Correct |
85 ms |
360 KB |
Output is correct |
14 |
Correct |
88 ms |
360 KB |
Output is correct |
15 |
Correct |
87 ms |
332 KB |
Output is correct |
16 |
Correct |
83 ms |
360 KB |
Output is correct |
17 |
Correct |
94 ms |
356 KB |
Output is correct |
18 |
Correct |
86 ms |
356 KB |
Output is correct |
19 |
Correct |
86 ms |
360 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
60 ms |
4892 KB |
Output is correct |
2 |
Correct |
59 ms |
5472 KB |
Output is correct |
3 |
Correct |
62 ms |
5564 KB |
Output is correct |
4 |
Correct |
58 ms |
5444 KB |
Output is correct |
5 |
Correct |
59 ms |
5448 KB |
Output is correct |
6 |
Correct |
60 ms |
5484 KB |
Output is correct |
7 |
Correct |
66 ms |
5448 KB |
Output is correct |
8 |
Correct |
56 ms |
4420 KB |
Output is correct |
9 |
Correct |
56 ms |
4300 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
90 ms |
5704 KB |
Output is correct |
12 |
Correct |
95 ms |
5828 KB |
Output is correct |
13 |
Correct |
93 ms |
5776 KB |
Output is correct |
14 |
Correct |
90 ms |
5712 KB |
Output is correct |
15 |
Correct |
91 ms |
5776 KB |
Output is correct |
16 |
Correct |
91 ms |
5776 KB |
Output is correct |
17 |
Correct |
90 ms |
5908 KB |
Output is correct |
18 |
Correct |
89 ms |
5828 KB |
Output is correct |
19 |
Correct |
89 ms |
5808 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Execution timed out |
2075 ms |
1896 KB |
Time limit exceeded |
22 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Runtime error |
1 ms |
332 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |