8.1.11

#include <iostream>
#include <cmath>
#include <string.h>


using namespace std;

int count(char a[], char b[])
{
    int counter=0;
    int lengthA=strlen(a);
    int lengthB=strlen(b);
    for (int i=0;i<lengthA;i++)
    {
        for (int j=0;j<lengthB;j++)
        {
            if (a[i]==b[j])
            {
                counter++;
                break;
            }
        }
    }
    return counter;
}

int main()
{
    char str[30]="Hello";
    cout<<count("abracadabra", "bax");
    return 0;
}