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답안 #544366

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
544366 2022-04-01T19:17:27 Z ValiAntonie Fancy Fence (CEOI20_fancyfence) C++17
100 / 100
 38 ms 4332 KB 
#include <bits/stdc++.h>
#define mod 1000000007

using namespace std;

stack <pair<int,int>> S;
int n,v[100005],i,dr[100005],st[100005],x,j,val,Max,st2[100005],dr2[100005];
long long suma[100001],total1,val1, val2,total2;
pair <int,int > sor[100005];


long long bin(long long  x){
    if(x > mod){
	x %= mod;
    }
    return ((x*(x+1))/2)%mod;
}
long long rectCount(long long x, long long y){
    return (bin(x)*bin(y))%mod;
}


int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n;
for(i=1;i<=n;i++){
    cin>>v[i];
    sor[i].first = v[i];
    sor[i].second = i;
    dr[i] = n + 1;
}
sort(sor+1,sor+n+1);
for(i=1;i<=n;i++){
    cin>>x;
    suma[i] = suma[i-1] + x;
}
for(i=1;i<=n;i++){
    x = v[i];
    while(S.empty() == false && x<S.top().first){
        dr[S.top().second] = i;
        S.pop();
    }
    S.push({x,i});
}
while(S.empty() == false){
    S.pop();
}
for(i=n;i>=1;i--){
    x = v[i];
    while(S.empty() == false && x <S.top().first){
        st[S.top().second] = i;
        S.pop();
    }
    S.push({x,i});
}

while(S.empty() == false){
    S.pop();
}
for(i=n;i>=1;i--){
    x = v[i];
    while(S.empty() == false && x<=S.top().first){
        st2[S.top().second] = i;
        S.pop();
    }
    S.push({x,i});
}
for(i=1;i<=n;i++){
    total1 = (total1 + rectCount(suma[dr[sor[i].second]-1] - suma[st[sor[i].second]],sor[i].first));
    if(total1 > mod){
        total1 -= mod;
    }
    Max = max(v[st2[sor[i].second]],v[dr[sor[i].second]]);
    total2 = (total2 + rectCount(suma[dr[sor[i].second]-1] - suma[st[sor[i].second]],Max)) % mod;
}
if(total1 < total2)
    total1 += mod;
cout << total1 - total2;
    return 0;
}

Subtask #1
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct

Subtask #3
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 15 ms 2012 KB Output is correct
4 Correct 27 ms 3984 KB Output is correct
5 Correct 31 ms 3796 KB Output is correct
6 Correct 27 ms 3428 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 660 KB Output is correct
3 Correct 14 ms 1968 KB Output is correct
4 Correct 26 ms 3656 KB Output is correct
5 Correct 31 ms 3568 KB Output is correct
6 Correct 0 ms 340 KB Output is correct

Subtask #5
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 3 ms 704 KB Output is correct
4 Correct 14 ms 2052 KB Output is correct
5 Correct 28 ms 3644 KB Output is correct
6 Correct 30 ms 3568 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 3 ms 748 KB Output is correct
9 Correct 15 ms 2272 KB Output is correct
10 Correct 26 ms 4172 KB Output is correct
11 Correct 27 ms 4268 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #6
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 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 340 KB Output is correct
12 Correct 1 ms 340 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 340 KB Output is correct

Subtask #7
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 280 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 15 ms 2020 KB Output is correct
12 Correct 26 ms 3984 KB Output is correct
13 Correct 34 ms 3764 KB Output is correct
14 Correct 28 ms 3464 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 596 KB Output is correct
17 Correct 13 ms 2068 KB Output is correct
18 Correct 26 ms 3584 KB Output is correct
19 Correct 30 ms 3600 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 3 ms 724 KB Output is correct
22 Correct 15 ms 2188 KB Output is correct
23 Correct 28 ms 4332 KB Output is correct
24 Correct 26 ms 4176 KB Output is correct
25 Correct 0 ms 340 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 4 ms 596 KB Output is correct
31 Correct 4 ms 596 KB Output is correct
32 Correct 21 ms 1872 KB Output is correct
33 Correct 18 ms 1888 KB Output is correct
34 Correct 36 ms 3404 KB Output is correct
35 Correct 37 ms 3416 KB Output is correct
36 Correct 37 ms 3336 KB Output is correct
37 Correct 38 ms 3360 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 36 ms 3376 KB Output is correct
40 Correct 32 ms 3460 KB Output is correct
41 Correct 31 ms 3408 KB Output is correct
42 Correct 26 ms 3476 KB Output is correct