Counting frequency of the character by using map function

 Here we are going to implement a map function of STL . and by using this map function we will count the frequency of the elements. Counting frequency of the character by using map function 

Code of Counting frequency of the character by using map function :-

#include<bits/stdc++.h>
using namespace std;
int main()
{
    map<int ,int > m;
    int t;
    cout<<"Enter number of elements"<<endl;
    cin>>t;
    cout<<"Enter the elements"<<endl;
    while(t--)
    {
        int a;
        cin>>a;
        m[a]+=1;
    }
    cout<<"The Frequency of the elements : "<<endl;
    for(auto &p:m)
      cout<<p.first<<" "<<p.second<<endl;
    return 0;
}

Output:-

Enter number of elements
5
Enter the elements
1
2
3
1
2
The Frequency of the elements :
1 2
2 2
3 1

 

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