pepcoding.com 21/10/21 getCommonElements-2

code.cpp

#include <iostream>
#include <unordered_map>
using namespace std;
 
int main(){
	int n,m;
	cin >> n;
	int arr1[n];
	unordered_map<int,int> mp;
	
	for(int i=0;i<n;i++){
		cin >> arr1[i];
		mp[arr1[i]]++;
	}
	cin >> m;
	int arr2[m];
	for(int i=0;i<m;i++){
		cin >> arr2[i];
		if(mp.find(arr2[i])!=mp.end() && mp[arr2[i]]!=0){
		    cout << arr2[i] << endl;
		    mp[arr2[i]]--;
		}
	}
	
}

code.py

def main():
    n1 = int(input())
    arr1=[]
    for i in range(n1):
        arr1.append(int(input()))
    n2 =  int(input())
    arr2=[]
    for i in range(n2):
        arr2.append(int(input()))

    hm={}
    for val in arr1:
        if  val in hm:
            hm[val]=hm.get(val)+1
        else:
            hm[val]=1
    for val in arr2:
        if val in hm and hm.get(val)>0:
            print(val)
            hm[val]=hm.get(val)-1
            
   
if __name__ == '__main__':
    main()

snippet.cpp

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

int main(){
	
	//write your code here
	
}

snippet.py

def main():
    n1 = int(input())
    arr1=[]
    for i in range(n1):
        arr1.append(int(input()))
    n2 =  int(input())
    arr2=[]
    for i in range(n2):
        arr2.append(int(input()))

    #write your code here
            
   
if __name__ == '__main__':
    main()