#include "bits/stdc++.h"
#define ll long long int
#define pb push_back
#define pii pair<ll,ll>
#define ff first
#define ss second
#define sz size()
const int N = 2e5 + 1;
using namespace std;
ll n, a[N], b[N], mod = 1e9+7, ins = 5e8+4, sum;
vector <pii> v;
int main(){
ios::sync_with_stdio(false); cin.tie(nullptr);
//freopen("input.in", "r", stdin);
//freopen("output.out", "w", stdout);
cin >> n;
for(int i = 1; i <= n; i++) cin >> a[i];
for(int i = 1; i <= n; i++) cin >> b[i];
v.pb({0,0});
n++;
for(int i = 1; i <= n; i++){
ll w = 0;
while(a[i] < v.back().ff){
ll h_yzdaky = max(a[i],v[(int)v.sz-2].ff);
ll h_aralyk = v.back().ff - h_yzdaky;
w += v.back().ss;
w %= mod;
sum += w*(w+1) % mod * ins % mod * h_aralyk % mod * h_yzdaky % mod;
sum %= mod;
sum += w*(w+1) % mod * ins % mod * h_aralyk % mod * (h_aralyk+1) % mod * ins % mod;
sum %= mod;
v.pop_back();
}
if(v.back().ff == a[i]) v.back() = {a[i],b[i]+w+v.back().ss};
else v.pb({a[i],b[i]+w});
}
cout << sum << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2392 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2400 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
7 ms |
3160 KB |
Output is correct |
4 |
Correct |
13 ms |
3928 KB |
Output is correct |
5 |
Correct |
17 ms |
4036 KB |
Output is correct |
6 |
Correct |
13 ms |
3932 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2652 KB |
Output is correct |
3 |
Correct |
9 ms |
3672 KB |
Output is correct |
4 |
Correct |
16 ms |
4728 KB |
Output is correct |
5 |
Correct |
18 ms |
4800 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2520 KB |
Output is correct |
3 |
Correct |
2 ms |
2652 KB |
Output is correct |
4 |
Correct |
8 ms |
3416 KB |
Output is correct |
5 |
Correct |
15 ms |
4696 KB |
Output is correct |
6 |
Correct |
17 ms |
4700 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
3 ms |
3164 KB |
Output is correct |
9 |
Correct |
10 ms |
4340 KB |
Output is correct |
10 |
Correct |
23 ms |
6604 KB |
Output is correct |
11 |
Correct |
24 ms |
6752 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2392 KB |
Output is correct |
15 |
Correct |
1 ms |
2536 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2392 KB |
Output is correct |
4 |
Correct |
1 ms |
2524 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2420 KB |
Output is correct |
8 |
Correct |
1 ms |
2392 KB |
Output is correct |
9 |
Correct |
1 ms |
2392 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
7 ms |
3032 KB |
Output is correct |
12 |
Correct |
13 ms |
3944 KB |
Output is correct |
13 |
Correct |
19 ms |
4184 KB |
Output is correct |
14 |
Correct |
13 ms |
3932 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
2 ms |
2628 KB |
Output is correct |
17 |
Correct |
8 ms |
3532 KB |
Output is correct |
18 |
Correct |
16 ms |
4700 KB |
Output is correct |
19 |
Correct |
16 ms |
4856 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
3 ms |
3164 KB |
Output is correct |
22 |
Correct |
10 ms |
4320 KB |
Output is correct |
23 |
Correct |
23 ms |
6608 KB |
Output is correct |
24 |
Correct |
23 ms |
6872 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
27 |
Correct |
1 ms |
2396 KB |
Output is correct |
28 |
Correct |
1 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2392 KB |
Output is correct |
30 |
Correct |
3 ms |
2652 KB |
Output is correct |
31 |
Correct |
3 ms |
2564 KB |
Output is correct |
32 |
Correct |
11 ms |
3552 KB |
Output is correct |
33 |
Correct |
12 ms |
3420 KB |
Output is correct |
34 |
Correct |
22 ms |
4432 KB |
Output is correct |
35 |
Correct |
22 ms |
4444 KB |
Output is correct |
36 |
Correct |
23 ms |
4700 KB |
Output is correct |
37 |
Correct |
24 ms |
4708 KB |
Output is correct |
38 |
Correct |
1 ms |
2424 KB |
Output is correct |
39 |
Correct |
22 ms |
4712 KB |
Output is correct |
40 |
Correct |
22 ms |
4712 KB |
Output is correct |
41 |
Correct |
22 ms |
4956 KB |
Output is correct |
42 |
Correct |
27 ms |
5732 KB |
Output is correct |