---

#include <iostream>
using namespace std;
int mystrlen(const char* s);
int main(void)
{
    const char* str1 = "Hello";
    const char* str2 = "Hello";
    int result = strcmp(str1, str2);
    if (result == 0)
    {
        printf("Strings are equal \n");
    }
    else
    {
        printf("Strings are not equal \n");
    }
    return 0;
}
int mystrlen(const char* s)
{
    int i = 0;
    while (s[i++] != '\0')
        ;
    return i - 1;
}