#include <iostream>
#include <vector>
#include <map>
#include <stack>
using namespace std;
const int mod=1e9+7;
#define int long long
signed main(){
int n;
cin>>n;
vector<int> v(n),h(n),pre(n+1);
map<int,int> mp;
for(int& i:h)cin>>i;
for(int& i:v)cin>>i;
for(int i=0;i<n;i++)pre[i+1]=(pre[i]+v[i])%mod;
long long ans=0;
for(int i=0;i<n;i++){
ans+=(((v[i]*(v[i]+1)/2)%mod)*(h[i]*(h[i]+1)/2)%mod)%mod;
ans%=mod;
int he=h[i];
for(int j=i+1;j<n;j++){
he=min(he,h[j]);
ans+=(((v[j]*(v[i]))%mod)*(he*(he+1)/2)%mod)%mod;
ans%=mod;
//cout<<ans<<' ';
}
//cout<<ans<<'\n';
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Incorrect |
3 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
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 |
4 ms |
212 KB |
Output is correct |
3 |
Execution timed out |
1092 ms |
1984 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
4 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
260 KB |
Output is correct |
2 |
Incorrect |
4 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Incorrect |
5 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Incorrect |
3 ms |
212 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |