제출 #596084

#제출 시각아이디문제언어결과실행 시간메모리
596084chinmoy_101Labels (NOI20_labels)C++14
0 / 100
0 ms212 KiB
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
int main()
{
    ll n;
    cin>>n;
    ll a;
    cin>>a;
    if(a==0)
    {
        cout<<-1;
    }
    else
    {
        if(a-1 <= n)
            cout<<1 <<" " <<a-1;
        else
            cout<<-1;
    }
    return 0;
}
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