| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 791360 | 2023-07-24T03:53:51 Z | ttamx | Fancy Fence (CEOI20_fancyfence) | C++14 | 24 ms | 5540 KB |
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=1e5+5;
const ll mod=1e9+7;
const ll inv2=5e8+4;
int n;
ll h[N],w[N];
ll ans,sum;
stack<pair<ll,ll>> st;
ll calc(ll x){
x%=mod;
return x*(x+1)%mod*inv2%mod;
}
int main(){
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n;
for(int i=1;i<=n;i++)cin >> h[i];
for(int i=1;i<=n;i++)cin >> w[i];
for(int i=1;i<=n;i++){
ans+=calc(w[i])*calc(h[i])%mod;
ans%=mod;
ll cnt=0;
while(!st.empty()&&st.top().first>h[i]){
auto [x,y]=st.top();
st.pop();
cnt+=y;
cnt%=mod;
sum+=mod-calc(x)*y%mod;
sum%=mod;
}
ans+=w[i]*(sum+calc(h[i])*cnt%mod)%mod;
ans%=mod;
cnt+=w[i];
st.emplace(h[i],cnt);
sum+=calc(h[i])*cnt%mod;
sum%=mod;
}
cout << ans;
}
Compilation message
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 212 KB | Output is correct |
| 2 | Correct | 1 ms | 340 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 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 | 1 ms | 212 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 212 KB | Output is correct |
| 2 | Correct | 1 ms | 348 KB | Output is correct |
| 3 | Correct | 11 ms | 1364 KB | Output is correct |
| 4 | Correct | 16 ms | 4304 KB | Output is correct |
| 5 | Correct | 17 ms | 3600 KB | Output is correct |
| 6 | Correct | 17 ms | 3152 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 340 KB | Output is correct |
| 2 | Correct | 2 ms | 596 KB | Output is correct |
| 3 | Correct | 10 ms | 1876 KB | Output is correct |
| 4 | Correct | 20 ms | 5372 KB | Output is correct |
| 5 | Correct | 20 ms | 5500 KB | Output is correct |
| 6 | Correct | 1 ms | 212 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 212 KB | Output is correct |
| 2 | Correct | 1 ms | 340 KB | Output is correct |
| 3 | Correct | 2 ms | 596 KB | Output is correct |
| 4 | Correct | 10 ms | 1820 KB | Output is correct |
| 5 | Correct | 20 ms | 5456 KB | Output is correct |
| 6 | Correct | 20 ms | 5540 KB | Output is correct |
| 7 | Correct | 1 ms | 340 KB | Output is correct |
| 8 | Correct | 3 ms | 724 KB | Output is correct |
| 9 | Correct | 11 ms | 2900 KB | Output is correct |
| 10 | Correct | 20 ms | 5284 KB | Output is correct |
| 11 | Correct | 20 ms | 5320 KB | Output is correct |
| 12 | Correct | 0 ms | 212 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 212 KB | Output is correct |
| 2 | Correct | 1 ms | 340 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 |
| 6 | Correct | 0 ms | 212 KB | Output is correct |
| 7 | Correct | 1 ms | 212 KB | Output is correct |
| 8 | Correct | 1 ms | 340 KB | Output is correct |
| 9 | Correct | 1 ms | 340 KB | Output is correct |
| 10 | Correct | 1 ms | 340 KB | Output is correct |
| 11 | Correct | 0 ms | 212 KB | Output is correct |
| 12 | Correct | 0 ms | 212 KB | Output is correct |
| 13 | Correct | 1 ms | 340 KB | Output is correct |
| 14 | Correct | 1 ms | 340 KB | Output is correct |
| 15 | Correct | 1 ms | 340 KB | Output is correct |
| 16 | Correct | 0 ms | 212 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 212 KB | Output is correct |
| 2 | Correct | 1 ms | 340 KB | Output is correct |
| 3 | Correct | 0 ms | 212 KB | Output is correct |
| 4 | Correct | 1 ms | 340 KB | Output is correct |
| 5 | Correct | 0 ms | 212 KB | Output is correct |
| 6 | Correct | 1 ms | 212 KB | Output is correct |
| 7 | Correct | 0 ms | 212 KB | Output is correct |
| 8 | Correct | 0 ms | 212 KB | Output is correct |
| 9 | Correct | 1 ms | 212 KB | Output is correct |
| 10 | Correct | 0 ms | 340 KB | Output is correct |
| 11 | Correct | 9 ms | 1364 KB | Output is correct |
| 12 | Correct | 16 ms | 4300 KB | Output is correct |
| 13 | Correct | 17 ms | 3668 KB | Output is correct |
| 14 | Correct | 16 ms | 3072 KB | Output is correct |
| 15 | Correct | 1 ms | 340 KB | Output is correct |
| 16 | Correct | 3 ms | 848 KB | Output is correct |
| 17 | Correct | 10 ms | 2900 KB | Output is correct |
| 18 | Correct | 20 ms | 5444 KB | Output is correct |
| 19 | Correct | 20 ms | 5492 KB | Output is correct |
| 20 | Correct | 1 ms | 344 KB | Output is correct |
| 21 | Correct | 3 ms | 744 KB | Output is correct |
| 22 | Correct | 10 ms | 2828 KB | Output is correct |
| 23 | Correct | 19 ms | 5260 KB | Output is correct |
| 24 | Correct | 24 ms | 5356 KB | Output is correct |
| 25 | Correct | 1 ms | 212 KB | Output is correct |
| 26 | Correct | 1 ms | 340 KB | Output is correct |
| 27 | Correct | 1 ms | 340 KB | Output is correct |
| 28 | Correct | 1 ms | 340 KB | Output is correct |
| 29 | Correct | 1 ms | 340 KB | Output is correct |
| 30 | Correct | 3 ms | 580 KB | Output is correct |
| 31 | Correct | 3 ms | 596 KB | Output is correct |
| 32 | Correct | 10 ms | 1876 KB | Output is correct |
| 33 | Correct | 10 ms | 2016 KB | Output is correct |
| 34 | Correct | 20 ms | 3532 KB | Output is correct |
| 35 | Correct | 20 ms | 3540 KB | Output is correct |
| 36 | Correct | 20 ms | 3796 KB | Output is correct |
| 37 | Correct | 20 ms | 3708 KB | Output is correct |
| 38 | Correct | 0 ms | 212 KB | Output is correct |
| 39 | Correct | 21 ms | 3792 KB | Output is correct |
| 40 | Correct | 21 ms | 3696 KB | Output is correct |
| 41 | Correct | 24 ms | 3984 KB | Output is correct |
| 42 | Correct | 22 ms | 4564 KB | Output is correct |