string cmp ovrld r.p

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

class string
{
    char *nm;
    int len;
public:
    string()
    {
        len=0;
        nm=new char[len+1];
    }

    string(char *s)
    {
        len=strlen(s);
        nm=new char[len+1];
        strcpy(nm,s);
    }

    int operator==(string t)
    {
        if(strcmp(nm,t.nm)==0)
            return 1;
        else
            return 0;
    }
};

int main()
{
    char a[10],b[10];
    string s1,s2;
    cout<<"enter two words to compare them\n";
    cin>>a>>b;
    s1=string(a);
    s2=string(b);
    if(s1==s2)
        cout<<"the  words are the same\n";
    else
        cout<<"the words are different\n";
    return 0;
}

OUTPUT:
enter two words to compare them
oops
oops
the  words are the same
Press any key to continue

enter two words to compare them
oops
loops
the words are different
Press any key to continue