My code is correct, but your testcases and it's answer are not

#1

Every order should get accepted–

My code -
#include<bits/stdc++.h>
using namespace std;
int main() {
int n;
cin>>n;
vector arr;
unordered_map<int,int> m;
for(int i=0;i<n;i++){
int val;
cin>>val;
m[val]++;
}

for(auto it:m){
	if(it.second==2){
		cout<<it.first<<", ";
	}
}

}

#2

hello @anant016
u should print output in this format
image
to pass all test cases

#3

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