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Submission #544372

# Submission time Handle Problem Language Result Execution time Memory
544372 2022-04-01T19:23:13 Z ValiAntonie Fancy Fence (CEOI20_fancyfence) C++17
100 / 100
 37 ms 4224 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 13 ms 2012 KB Output is correct
4 Correct 27 ms 4004 KB Output is correct
5 Correct 28 ms 3696 KB Output is correct
6 Correct 27 ms 3416 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 596 KB Output is correct
3 Correct 13 ms 2008 KB Output is correct
4 Correct 26 ms 3556 KB Output is correct
5 Correct 29 ms 3660 KB Output is correct
6 Correct 0 ms 340 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 3 ms 596 KB Output is correct
4 Correct 14 ms 2080 KB Output is correct
5 Correct 27 ms 3568 KB Output is correct
6 Correct 33 ms 3580 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 2168 KB Output is correct
10 Correct 26 ms 4224 KB Output is correct
11 Correct 27 ms 4180 KB Output is correct
12 Correct 0 ms 340 KB Output is correct

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 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

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 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 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 14 ms 2016 KB Output is correct
12 Correct 26 ms 4048 KB Output is correct
13 Correct 30 ms 3760 KB Output is correct
14 Correct 26 ms 3428 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 596 KB Output is correct
17 Correct 18 ms 2080 KB Output is correct
18 Correct 29 ms 3628 KB Output is correct
19 Correct 31 ms 3568 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 2224 KB Output is correct
23 Correct 25 ms 4176 KB Output is correct
24 Correct 26 ms 4172 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 17 ms 1812 KB Output is correct
33 Correct 21 ms 1888 KB Output is correct
34 Correct 37 ms 3404 KB Output is correct
35 Correct 37 ms 3416 KB Output is correct
36 Correct 37 ms 3420 KB Output is correct
37 Correct 37 ms 3416 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 37 ms 3440 KB Output is correct
40 Correct 31 ms 3444 KB Output is correct
41 Correct 29 ms 3392 KB Output is correct
42 Correct 25 ms 3460 KB Output is correct