Program to find the number repeating maximum using classes

This is a program to find the number out of the given list of numbers which repeats the maximum no. of times.

We have predefined the numbers using array.

Code:

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
    int arr1[]={3,3,3,1,5,6,7};
    int arr2[7];
    int i,j,k=0,l=0;
    for(i=0;i<8;i++)
    {
        arr2[i-1]=k;
        k=0;

        for(j=0;j<8;j++)
        {
            if(arr1[i]==arr1[j])
            {
                k++;
            }

        }
    }
    for(i=0;i<7;i++)
    {
    cout<<arr1[i]<<" has repeated "<<arr2[i]<<" times."<<endl;
    }
    cout<<endl<<"The maximum repeats are shown below:"<<endl;

    for(i=0;i<8;i++)
    {
        if(l>1)
        {
            cout<<arr1[i-1]<<" has repeated "<<arr2[i-1]<<" times."<<endl;
            l=0;
        }
        for(j=0;j<8;j++)
        {
            if(arr2[i]>arr2[j])
            {
                l++;
            }
        }
    }
}