oj.uz

Submission #1077855

# Submission time Handle Problem Language Result Execution time Memory
1077855 2024-08-27T09:48:23 Z vnm06 Bulldozer (JOI17_bulldozer) C++14
20 / 100
 2000 ms 131956 KB 
#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

struct Point
{
    long long x, y, val, nom;
    Point() {}
    Point(long long a, long long b, long long c, long long d)
    {
        x=a;
        y=b;
        val=c;
        nom=d;
    }
};

bool operator<(Point p, Point q)
{
    if(p.x==q.x) return p.y>q.y;
    return p.x<q.x;
}

struct Line
{
    Point a, b;
    Line() {}
    Line(Point p, Point q)
    {
        a.x=p.x;
        a.y=p.y;
        a.val=p.val;
        a.nom=p.nom;
        b.x=q.x;
        b.y=q.y;
        b.val=q.val;
        b.nom=q.nom;
    }
};

bool cmp(Line p, Line q)
{
    if(p.a.x==p.b.x) return 1;
    if(q.a.x==q.b.x) return 1;
    return ((p.b.y-p.a.y) * (q.b.x-q.a.x)) < ((q.b.y-q.a.y) * (p.b.x-p.a.x));
}

long long n, brl=0;
long long pos[2005];
Point P[2005];

vector<Line> L;

long long ans=0;
long long A[2005];

void solve()
{
    long long res=0;
    for(long long i=0; i<n; i++)
    {
        res+=A[i];
        if(res<0) res=0;
        if(res>ans) ans=res;
    }
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n;
    for(long long i=0; i<n; i++) cin>>P[i].x>>P[i].y>>P[i].val;
    sort(P, P+n);
    for(long long i=0; i<n; i++) P[i].nom=i;
    for(long long i=0; i<n; i++)
    {
        A[i]=P[i].val;
        pos[i]=i;
        for(long long j=i+1; j<n; j++)
        {
            L.push_back(Line(P[i], P[j]));
            ///cout<<L[brl].a.x<<" "<<L[brl].a.y<<" "<<L[brl].b.x<<" "<<L[brl].b.y<<"\n";
            brl++;
        }
    }
    ///cout<<brl<<endl;
    sort(L.begin(), L.end(), cmp);

    for(long long i=0; i<brl; i++)
    {
        solve();
        Point t1=L[i].a, t2=L[i].b;
        swap(A[pos[t1.nom]], A[pos[t2.nom]]);
        swap(pos[t1.nom], pos[t2.nom]);
    }
    solve();
    cout<<ans<<endl;
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 992 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 992 KB Output is correct
2 Correct 2 ms 992 KB Output is correct
3 Correct 2 ms 992 KB Output is correct
4 Correct 2 ms 992 KB Output is correct
5 Correct 2 ms 992 KB Output is correct
6 Correct 2 ms 992 KB Output is correct
7 Correct 2 ms 992 KB Output is correct
8 Correct 2 ms 992 KB Output is correct
9 Correct 2 ms 992 KB Output is correct
10 Correct 2 ms 992 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 472 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 992 KB Output is correct
22 Correct 2 ms 992 KB Output is correct
23 Correct 2 ms 988 KB Output is correct
24 Correct 2 ms 988 KB Output is correct
25 Correct 2 ms 992 KB Output is correct
26 Correct 2 ms 992 KB Output is correct
27 Correct 2 ms 992 KB Output is correct
28 Correct 2 ms 992 KB Output is correct
29 Correct 2 ms 992 KB Output is correct
30 Correct 2 ms 992 KB Output is correct
31 Correct 2 ms 992 KB Output is correct
32 Correct 2 ms 1244 KB Output is correct

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 992 KB Output is correct
2 Correct 2 ms 992 KB Output is correct
3 Correct 2 ms 992 KB Output is correct
4 Correct 2 ms 992 KB Output is correct
5 Correct 2 ms 992 KB Output is correct
6 Correct 2 ms 992 KB Output is correct
7 Correct 2 ms 992 KB Output is correct
8 Correct 2 ms 992 KB Output is correct
9 Correct 2 ms 992 KB Output is correct
10 Correct 2 ms 992 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 472 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 992 KB Output is correct
22 Correct 2 ms 992 KB Output is correct
23 Correct 2 ms 988 KB Output is correct
24 Correct 2 ms 988 KB Output is correct
25 Correct 2 ms 992 KB Output is correct
26 Correct 2 ms 992 KB Output is correct
27 Correct 2 ms 992 KB Output is correct
28 Correct 2 ms 992 KB Output is correct
29 Correct 2 ms 992 KB Output is correct
30 Correct 2 ms 992 KB Output is correct
31 Correct 2 ms 992 KB Output is correct
32 Correct 2 ms 1244 KB Output is correct
33 Execution timed out 2048 ms 131956 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 992 KB Output is correct
2 Correct 2 ms 992 KB Output is correct
3 Correct 2 ms 992 KB Output is correct
4 Correct 2 ms 992 KB Output is correct
5 Correct 2 ms 992 KB Output is correct
6 Correct 2 ms 992 KB Output is correct
7 Correct 2 ms 992 KB Output is correct
8 Correct 2 ms 992 KB Output is correct
9 Correct 2 ms 992 KB Output is correct
10 Correct 2 ms 992 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 472 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 992 KB Output is correct
22 Correct 2 ms 992 KB Output is correct
23 Correct 2 ms 988 KB Output is correct
24 Correct 2 ms 988 KB Output is correct
25 Correct 2 ms 992 KB Output is correct
26 Correct 2 ms 992 KB Output is correct
27 Correct 2 ms 992 KB Output is correct
28 Correct 2 ms 992 KB Output is correct
29 Correct 2 ms 992 KB Output is correct
30 Correct 2 ms 992 KB Output is correct
31 Correct 2 ms 992 KB Output is correct
32 Correct 2 ms 1244 KB Output is correct
33 Execution timed out 2048 ms 131956 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 992 KB Output isn't correct
2 Halted 0 ms 0 KB -