//control+option+n to run!
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define FOR(i, a, b) for (signed long long i = (signed long long)(a); i < (signed long long)(b); i++)
#define NEGFOR(i, a, b) for (ll i = (a); i > (b); i--)
#define vll vector<long long>
#define sll set<long long>
#define ld long double
#define inf 1000000000000000000
#define mll multiset<long long>
#define vpll vector<pll>
#define nn << "\n"
#define ss << " "
#define F(i, b) for (ll i = 0; i < b; i++)
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
ll n;
cin >> n;
vll v(n);
FOR(i, 0, n)
cin >> v[i];
vll before(n, 0), after(n, 0), x;
ll ans = 0;
x.pb(v[0]);
FOR(i, 1, n)
{
before[i] = lower_bound(x.begin(), x.end(), v[i]) - x.begin();
x.pb(v[i]);
sort(x.begin(), x.end());
}
x={};
x.pb(v[n-1]);
FOR(i, 1, n)
{
after[i] = lower_bound(x.begin(), x.end(), v[n-i-1])-x.begin();
x.pb(v[n-i-1]);
sort(x.begin(), x.end());
}
FOR(i,0,n){
ans+=before[i]*after[n-1-i];
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Execution timed out |
2085 ms |
8124 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2063 ms |
8100 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2063 ms |
8100 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
384 KB |
Output is correct |
2 |
Correct |
8 ms |
384 KB |
Output is correct |
3 |
Correct |
6 ms |
384 KB |
Output is correct |
4 |
Correct |
6 ms |
384 KB |
Output is correct |
5 |
Correct |
7 ms |
384 KB |
Output is correct |
6 |
Correct |
6 ms |
384 KB |
Output is correct |
7 |
Correct |
6 ms |
384 KB |
Output is correct |
8 |
Correct |
7 ms |
384 KB |
Output is correct |
9 |
Correct |
7 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
384 KB |
Output is correct |
2 |
Correct |
8 ms |
384 KB |
Output is correct |
3 |
Correct |
6 ms |
384 KB |
Output is correct |
4 |
Correct |
6 ms |
384 KB |
Output is correct |
5 |
Correct |
7 ms |
384 KB |
Output is correct |
6 |
Correct |
6 ms |
384 KB |
Output is correct |
7 |
Correct |
6 ms |
384 KB |
Output is correct |
8 |
Correct |
7 ms |
384 KB |
Output is correct |
9 |
Correct |
7 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
11 |
Execution timed out |
2080 ms |
940 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2063 ms |
8100 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Execution timed out |
2085 ms |
8124 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |