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#include <iostream>
using namespace std;
int union(int p, int q){            //Code 1
    for(int i=0;i<size;i++)
        if(arr[i]==arr[p])
            arr[i]=arr[q];}
 
int union(int p, int q){            //Code 2
    int pid=arr[p];
    int qid=arr[q];
        for(int i=0;i<size;i++)
        if(arr[i]==p)
            arr[i]=q;}
 
int main() {
	// your code goes here
	return 0;
}

prog.cpp:3:10: error: expected identifier before ‘(’ token
 int union(int p, int q){            //Code 1
          ^
prog.cpp:3:11: error: expected unqualified-id before ‘int’
 int union(int p, int q){            //Code 1
           ^~~
prog.cpp:3:11: error: expected ‘)’ before ‘int’
prog.cpp:8:10: error: expected identifier before ‘(’ token
 int union(int p, int q){            //Code 2
          ^
prog.cpp:8:11: error: expected unqualified-id before ‘int’
 int union(int p, int q){            //Code 2
           ^~~
prog.cpp:8:11: error: expected ‘)’ before ‘int’

Standard output is empty