8.1.10

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


using namespace std;

int count(char a[], char c)
{
    int counter=0;
    int length=strlen(a);
    for (int i=0;i<length;i++)
    {
        if (a[i]==c) counter++;
    }
    return counter;
}

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