Submission #499454

#TimeUsernameProblemLanguageResultExecution timeMemory
499454AbitoLampice (COCI21_lampice)C++14
0 / 50
1 ms204 KiB
#include <iostream>

using namespace std;

int main()
{
    int n,k;
    cin>>n>>k;
    int a[n];
    for (int i=0;i<n;i++)
    {
        cin>>a[i];
    }
    int x=0,y=-1;
    bool b=0;
    for (int i=0;i<n-1;i++)
    {
        if (a[i]==a[i+1])
        {
            for (int j=1;j<n-1;j++)
            {
                if (a[j]==a[j+1])
                {
                    x++;
                    y=a[j];
                }
                else
                {
                    b=1;
                    break;
                }
            }
            if (b)
                break;
        }
    }
    if (b)
        cout<<1<<endl<<y;
    else
        cout<<y;
    return 0;
}
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