quastion 1 for 2016 exam

//W.P to input data into the array A[3][3] and find the average of the positive values in the second column and first row together
#include<iostream>
using namespace std;
int main()
{
    int a[3][3],i,j;
    for(i=0;i<3;i++)
    {
        for(j=0;j<3;j++)
        {
            cout<<"["<<i<<"]["<<j<<"]";
            cin>>a[i][j];
        }
    }
    for(i=0;i<3;i++)
    {
        for(j=0;j<3;j++)
        {
            cout<<a[i][j]<<"\t";
        }
        cout<<endl<<endl;
    }
    int k=0,sum=0;
    for(j=0;j<3;j++)
    {
        if(a[j][1]&&a[0][j]>0)
        {
            sum+=a[0][j]+a[j][1];
            k++;
        }
    }
    cout<<"sum = "<<sum;
    if(k==0)
    {
        cout<<"\nNot Found Positive Number\n";
    }
    else if(k!=0){
        float av=sum/k;
        cout<<"Av = "<<av;
    }

}