Submission #845909

#	Time	Username	Problem	Language	Result	Execution time	Memory
845909		jamkel19	Table Tennis (info1cup20_tabletennis)	C++14	100 / 100	663 ms	249092 KiB

tabletennis

#include <bits/stdc++.h>
using namespace std;
#define st first
#define nd second
typedef long long ll;
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n,k;
    cin>>n>>k;
    int N=n+k;
    vector<int>a(N);
    vector<bool>b(2000000001,true);
    for(int i=0;i<N;i++)
    {
        cin>>a[i];
    }
    for(int i=0;i<k+1;i++)
    {
        for(int j=0;j+i<k+1;j++)
        {
            int ile=0,co=a[i]+a[N-j-1];
            if(b[co])
            {
                b[co]=false;
                int start=i,meta=N-j-1;
                vector<int>c(n);
                for(int o=0;i+j+o<=k &&  start<meta;o++)
                {
                    if(a[start]+a[meta]==co)
                    {
                        o--;
                        c[ile]=a[start];
                        c[n-ile-1]=a[meta];
                        ile++;
                        start++;
                        meta--;
                        if(ile==n/2)
                        {
                            break;
                        }
                    }
                    else
                    {
                        if(a[start]+a[meta]>co)
                        {
                            meta--;
                        }
                        else
                        {
                            start++;
                        }
                    }
                }
                if(ile>=n/2)
                {
                    for(int w=0;w<n;w++)
                    {
                        cout<<c[w]<<" ";
                    }
                    cout<<endl;
                    return 0;
                }
            }
        }
    }
}

• Subtask 1: 11 / 11
• Subtask 2: 9 / 9
• Subtask 3: 14 / 14
• Subtask 4: 15 / 15
• Subtask 5: 9 / 9
• Subtask 6: 14 / 14
• Subtask 7: 15 / 15
• Subtask 8: 13 / 13