Programming Examples

Cpp program to find the frequency of elements in an array


Write a cpp program to find the frequency of elements in an array

Solution

#include<iostream>
using namespace std;
int main(){
    int num[5],a,b,flag;
    cout<<"Enter 5 elements in an array";
    for(a=0;a<5;a++)
    {
        cin>>num[a];
    }
    for(a=0;a<5;a++)
    {    
        flag=0;
        for(b=a-1;b>=0;b--) 
        {
            if(num[a]==num[b])
            {
                 flag=1;
                 break;
            } 
        }
        if(flag==0)
        {
            int count=0;  
            for( b=0;b<5;b++)
            {
                if(num[a]==num[b])
                 {
                     count++;
                }
            } 
            cout<<num[a]<<" -> "<<count<<endl;        
        }
    }
    return 0;
}
Output

Enter 5 elements in an array 

1

1

2

2

3

1 -> 2

2 -> 2

3 -> 1


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