Lab task - (Array - 3)

#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long
#define uom unordered_map
#define pb push_back
#define yes cout<<"YES\n"
#define no cout<<"NO\n"

#define dot(x) fixed<<setprecision(x)
#define wrench786 ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

#define PI (acos(-1.0))
#define eps 0.00001
const int LIMIT = 10000*1;
const int mod = 1000000007;
using namespace std;

int arr[LIMIT];

int main(){
    int n,i=0,maxim=0;
    while(cin>>n){
        arr[n]++;
        if(n>maxim) maxim = n;
    }
    for(i=1;i<=maxim;i++){
        if(arr[i]>1){
            cout<<i<<" "<<arr[i]<<endl;
            arr[i]=1;
        }
    }

    for(i=1;i<=maxim;i++){
        if(arr[i]==1) cout<<i<<" ";
    }
}