#include<bits/stdc++.h>
using namespace std;
#define int long long
const int MOD = 1e9+7;
int n;
int h[100005];
int w[100005];
int nrp(int x)
{
return (x*(x+1)/2LL)%MOD;
}
signed main()
{
cin>>n;
for(int i=1;i<=n;i++)
{
cin>>h[i];
}
deque<pair<int,int>> dq;///{h, cnt}
int sumdq=0,rez=0;
for(int i=1;i<=n;i++)
{
cin>>w[i];
int cnt = w[i];
while(!dq.empty() && h[i] <= dq.back().first)
{
cnt += dq.back().second;
cnt %= MOD;
sumdq = (sumdq + MOD - nrp(dq.back().first) * dq.back().second)%MOD;
dq.pop_back();
}
dq.push_back({h[i],cnt});
rez += (sumdq*w[i])%MOD + nrp(h[i]) * (((cnt - w[i] + MOD)*w[i] + nrp(w[i]))%MOD);
rez %= MOD;
sumdq += (nrp(h[i]) * cnt)%MOD;
sumdq %= MOD;
}
cout<<rez;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
444 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
20 ms |
1624 KB |
Output is correct |
4 |
Correct |
39 ms |
2900 KB |
Output is correct |
5 |
Correct |
39 ms |
3164 KB |
Output is correct |
6 |
Correct |
39 ms |
2908 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
8 ms |
604 KB |
Output is correct |
3 |
Correct |
28 ms |
2136 KB |
Output is correct |
4 |
Correct |
57 ms |
3796 KB |
Output is correct |
5 |
Correct |
59 ms |
3920 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
6 ms |
604 KB |
Output is correct |
4 |
Correct |
28 ms |
2136 KB |
Output is correct |
5 |
Correct |
56 ms |
3856 KB |
Output is correct |
6 |
Correct |
59 ms |
3924 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
6 ms |
828 KB |
Output is correct |
9 |
Correct |
30 ms |
2384 KB |
Output is correct |
10 |
Correct |
55 ms |
5588 KB |
Output is correct |
11 |
Correct |
57 ms |
5460 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
600 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
476 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
444 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
20 ms |
1624 KB |
Output is correct |
12 |
Correct |
50 ms |
3076 KB |
Output is correct |
13 |
Correct |
41 ms |
2908 KB |
Output is correct |
14 |
Correct |
39 ms |
3160 KB |
Output is correct |
15 |
Correct |
1 ms |
448 KB |
Output is correct |
16 |
Correct |
6 ms |
604 KB |
Output is correct |
17 |
Correct |
28 ms |
2152 KB |
Output is correct |
18 |
Correct |
57 ms |
3924 KB |
Output is correct |
19 |
Correct |
58 ms |
4012 KB |
Output is correct |
20 |
Correct |
2 ms |
344 KB |
Output is correct |
21 |
Correct |
6 ms |
968 KB |
Output is correct |
22 |
Correct |
29 ms |
2392 KB |
Output is correct |
23 |
Correct |
60 ms |
5492 KB |
Output is correct |
24 |
Correct |
65 ms |
5456 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
6 ms |
600 KB |
Output is correct |
31 |
Correct |
9 ms |
844 KB |
Output is correct |
32 |
Correct |
26 ms |
2056 KB |
Output is correct |
33 |
Correct |
29 ms |
2140 KB |
Output is correct |
34 |
Correct |
54 ms |
3620 KB |
Output is correct |
35 |
Correct |
67 ms |
3532 KB |
Output is correct |
36 |
Correct |
59 ms |
3664 KB |
Output is correct |
37 |
Correct |
70 ms |
3920 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
56 ms |
3712 KB |
Output is correct |
40 |
Correct |
58 ms |
3852 KB |
Output is correct |
41 |
Correct |
59 ms |
3920 KB |
Output is correct |
42 |
Correct |
57 ms |
4672 KB |
Output is correct |