L1-030 一帮一 (15 分)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner s=new Scanner(System.in);
int n=s.nextInt();
int a[]=new int[n];
String[] str=new String[n];
for(int i=0;i<n;i++) {
a[i]=s.nextInt();
str[i]=s.next();
}
for(int i=0;i<n/2;i++) {
for(int j=n-1;j>=n/2;j--) {
if(a[i]==0) {
if(a[j]==1) {
System.out.println(str[i]+" "+str[j]);
a[j]=3;
break;
}else {
continue;
}
}
else {
if(a[j]==0) {
System.out.println(str[i]+" "+str[j]);
a[j]=3;
break;
}else {
continue;
}
}
}
}
}
}