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Submission #543797

# Submission time Handle Problem Language Result Execution time Memory
543797 2022-03-31T11:54:46 Z levladiator Autobahn (COI21_autobahn) C++14
50 / 100
 31 ms 3632 KB 
#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
#define ll long long
#define ull unsigned long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define EPSILON 0.000001
#define CH (*s-'a')

using namespace std;

const ll NMAX = 1e5 + 5, INF = 1e18, MOD = 1e9 + 7, MMAX = 1e2 + 5, inf = 1e9;

ifstream fin("sufle.in");
ofstream fout("sufle.out");

int N,K,X;
int aib1[NMAX],aib2[NMAX];

void add(int a[],int pos,int val)
{
    for(int i=pos;i<=100000;i+=i&(-i))
    {
        a[i]+=val;
    }
}

ll sum(int a[],int pos)
{
    ll res=0;
    for(int i=pos;i>0;i-=i&(-i))
    {
        res+=a[i];
    }
    return res;
}

int main()
{
    cin.tie ( 0 )->sync_with_stdio ( 0 );
    cin.tie ( NULL );
    cout.tie ( NULL );

    cin>>N>>K>>X;
    for(int i=1;i<=N;i++)
    {
        int l,t,r;
        cin>>l>>t>>r;
        add(aib1,l,1);
        add(aib1,r+1,-1);
        add(aib2,l+t,1);
        add(aib2,r+1,-1);
    }
    ll best=0,S=0;
    for(int i=1;i<=X;i++)
    {
        int nrp=sum(aib1,i);
        if(nrp>=K)
        {
            S+=sum(aib2,i);
        }
    }
    best=S;
    for(int i=X+1;i<=100000;i++)
    {
        int nrp=sum(aib1,i);
        if(nrp>=K)
        {
            S+=sum(aib2,i);
        }
        nrp=sum(aib1,i-X);
        if(nrp>=K)
        {
            S-=sum(aib2,i-X);
        }
        best=max(best,S);
    }
    cout<<best;

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 3 ms 340 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 3 ms 340 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 3 ms 340 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 3 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 4 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 3 ms 340 KB Output is correct

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 3 ms 340 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 3 ms 340 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 3 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 3 ms 340 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 4 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Runtime error 31 ms 3632 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -