Tic Tac Toe Ai Problems

int i = rand() % 10;

 
#include <cstdlib>
#include <cstring>
#include <iostream>
using namespace std;

struct Random {
Random();
Random(int);
int Next();
int Next(int);
int Next(int , int );
double NextDouble();  
char* NextBytes(char[]);
char* NextBytes(int len);
char* NextCharArray(int len);
private:
       int Seed;   
};

Random::Random(){
 Seed = (int) time(0);                
}

Random::Random(int seed){
Seed =  seed;                 
}

int Random::Next() { 

return rand() % RAND_MAX;   
}

int Random::Next(int nxt) {

nxt++; 
return rand() % nxt ;                 
}

int Random::Next(int min, int max) {

if(min > max) // If min > max then swap their values
{
       int temp = max;
       max = min;
       min = temp;
}
return (rand() % (max-min + 1)) + min;
}

double Random::NextDouble() { 

//return (double)((rand()%10 + 1)*0.1) ;  Returns exactly values e.g : 0.1 , 0.4 , 0.8
return static_cast<double>(rand())/RAND_MAX;             
}

char* Random::NextBytes(char array[]) {    
string s;
for(int i = 0; i < strlen(array);i++)
{
int aids = rand() % 255 + 1;
char buffer[16];
sprintf(buffer,"%d",aids);
s += buffer;  
}      
return (char*) s.c_str();
}

char* Random::NextBytes(int len ) {   

string s;
for(int i = 0; i < len;i++)
{
int aids = rand() % 255 + 1;
char buffer[16];
sprintf(buffer,"%d",aids);
s += buffer;  
}      
return (char*) s.c_str();
}

//Credits of generating char array go to Jason
char* Random::NextCharArray(int len) { 
     char *str = (char*)calloc(len + 1, sizeof(char));
    for (int i = 0; i < len; i++)
        str[i] = (char)(rand() % 0x5E + 0x21);
    return str;     
}

 #include <iostream>
#include <random.h>
using namespace std;

void PlayAtLocation(int, int[]);

int main() { 
Random randx = Random(777);
int board[] = { 0,0,0,0,0,0,0,0,0};

PlayAtLocation(randx.Next(0,9), board);
cin.get();  

PlayAtLocation(randx.Next(0,9), board);
cin.get();   

PlayAtLocation(randx.Next(0,9), board);
cin.get();   

PlayAtLocation(randx.Next(0,9), board);
cin.get();   

PlayAtLocation(randx.Next(0,9), board);
cin.get();   

PlayAtLocation(randx.Next(0,9), board);
cin.get();   

PlayAtLocation(randx.Next(0,9), board);
cin.get();   
PlayAtLocation(randx.Next(0,9), board);
cin.get();   
PlayAtLocation(randx.Next(0,9), board);
cin.get();   
cin.get();
return 0;
}

void PlayAtLocation(int location,int bd[]) {
     if(bd[location] == 0 ) { 
     bd[location] = 1;
     cout <<  "Played at location: " << location;
     } else { 
            cout << "Already played at this location! (" << location <<")";
     }
}