Submission #1363580

#	Time	Username	Problem	Language	Result	Execution time	Memory
1363580		biserailieva	Guessing Game (EGOI23_guessinggame)	C++20	0 / 100	357 ms	864 KiB

guessinggame

#include <bits/stdc++.h>
using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int P, N;
    cin>>P>>N;
    if(P==1)
    {
        cout<<(N+1)/2<<endl; 
        int cur=1;
        for(int i=0;i<N/2;i++)
        {
            int idx;
            cin>>idx; 
            cout<<cur<<endl; 
            cur++;
        }
        cur=1;
        for(int i=N/2;i<=N-1;i++)
        {
            int idx;
            cin>>idx; 
            cout<<cur<<endl; 
            cur++;
        }
    }
    else
    {
        vector<int>A(N);
        map<int, int>freq;
        int i1=-1, i2=-1;
        for(int i=0;i<N;i++)
        {
            cin>>A[i];
        }
        for(int i=0;i<N/2;i++)
        {
            freq[A[i]]++;
            if(freq[A[i]]==2)
            {
                i1=i;
                for(int j=0;j<N/2;j++)
                {
                    if(A[j]==A[i])
                    {
                        i2=j;
                        cout<<i2<<' '<<i1<<endl;
                        return 0;
                    }
                }
            }
        }
        map<int, int>freq2;
        for(int i=N/2;i<=N-1;i++)
        {
            freq2[A[i]]++;
            if(freq2[A[i]]==2)
            {
                i1=i;
                for(int j=N/2;j<=N-1;j++)
                {
                    if(A[j]==A[i])
                    {
                        i2=j;
                        cout<<i2<<' '<<i1<<endl;
                        return 0;
                    }
                }
            }
        }
        /*for(int i=0;i<N;i++)
        {
            if((freq[A[i]]==2 && i<N/2) || (freq2[A[i]]==2 && i>=N/2))
            {
                cout<<i<<' ';
            }
        }*/
    }
    return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 100