Peli

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

typedef long long ll;
const int N=2009;

//int ;

void input(){

}

bool q(int a,int b){
    if(a>b)swap(a,b);
    if(a==b)return 0;
    if(a==0||b==0)return 0;
    if(a==1&&b==2)return 1;
    if(a==1)return 0;
    if(a==2)return 0;
    if(b-a==1)return 0;
    return 1;
}

bool f[N][N];

bool r[N],d[N],c[N];

void solve(){
    int n;
    cin>>n;
    d[0]=1;
    for(int i=1;i<=n;++i){
        for(int j=1;j<=i;++j){
            if((!r[i])&&(!c[j])&&(!d[i-j])){
                f[i][j]=1;r[i]=1;c[j]=1;d[i-j]=1;
                r[j]=1;c[i]=1;
            }
        }
    }
    while(n--){
        int a,b;
        cin>>a>>b;
        if(a<b)swap(a,b);
        cout<<(f[a][b]?"second":"first")<<endl;
    }
}


int main(){
    input();
    solve();
    return 0;
}

Test 1 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 2, 3

Verdict: ACCEPTED

Test 4

Group: 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: ACCEPTED

Test 6

Group: 3

Verdict: WRONG ANSWER