TicTacToe game doesn't work

I'm making a tictactoe game, user interface works, but cpu player can't put in O's. The code is crappy, but take a look only at the ending, where cpu has to put in the answer. Who can help?

Code:

//MADE BY MAXTO
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
const int LOW = 1;
const int HIGH = 9;
char a='a',b='b',c='c',d='d',e='e',f='f',g='g',h='h',i='i';
char location;
char location1;
int cpu_line;
/*Map viewing*/

inline void showmap()
{
cout<<"Field map:\n";
cout<<"  "<<a<<" | "<<b<<"  |  "<<c<<" "<<endl;
cout<<"____|____|____"<<endl;
cout<<"  "<<d<<" | "<<e<<"  | "<<f<<"  "<<endl;
cout<<"____|____|____"<<endl;
cout<<"  "<<g<<" | "<<h<<"  | "<<i<<"  "<<endl;
cout<<"    |    |    \n";
}






/*CPU AI*/
inline void cgennum(){
    int cpu_line;
    time_t seconds;
    time(&seconds);
    srand((unsigned int)seconds);
    cpu_line = rand() % ( HIGH - LOW + 1) + LOW;
}

int main()



{   

    
    
    /*tic tac toe game field*/
/*
cout<<"  a | b  | c
cout<<"____|____|____"<<endl;
cout<<"  d | e  | f  "<<endl;
cout<<"____|____|____"<<endl;
cout<<"  g | h  | i  "<<endl;
cout<<"    |    |    "<<endl;
*/



cout<<"    |    |    "<<endl;         
cout<<"____|____|____"<<endl;
cout<<"    |    |    "<<endl;
cout<<"____|____|____"<<endl;
cout<<"    |    |    "<<endl;
cout<<"    |    |    "<<endl;
cout<<endl;
showmap();
cin>>location;
cin.ignore();
//========location>>"X";===========
switch (location){
case 'a' : a = 'X' ;
break;
case 'b' : b = 'X' ;
break;
case 'c' : c = 'X' ;
break;
case 'd' : d = 'X' ;
break;
case 'e' : e = 'X' ;
break;
case 'f' : f = 'X' ;
break;
case 'g' : g = 'X' ;
break;
case 'h' : h = 'X' ;
break;
case 'i' : i = 'X' ;
break;
default:cout<<"---\n" ;
}
showmap();
cin.get();
cgennum();

/*AI coding try 1*/
    int cpu_line;
    time_t seconds;
    time(&seconds);
    srand((unsigned int)seconds);
    cpu_line = rand() % ( HIGH - LOW + 1) + LOW;
    
    switch (location1){
case 'a' : a = 'O' ;
break;
case 'b' : b = 'O' ;
break;
case 'c' : c = 'O' ;
break;
case 'd' : d = 'O' ;
break;
case 'e' : e = 'O' ;
break;
case 'f' : f = 'O' ;
break;
case 'g' : g = 'O' ;
break;
case 'h' : h = 'O' ;
break;
case 'i' : i = 'O' ;
break;

if (cpu_line == 1){
             while (a == 'X') {cgennum();}
             while (a == 'O') {cgennum();}
             if ( a != 'O' && 'X'){
                  a = 'O'; 
             }
             }             
else if (cpu_line == 2){
             if (b == 'X') {cgennum();}
             while (b == 'X') {cgennum();}
             while (b == 'O') {cgennum();}
             if ( b != 'O' && 'X'){
                  b = 'O';
             }
             }
else if (cpu_line == 3){
             if (c == 'X') {cgennum();}
             while (c == 'X') {cgennum();}
             while (c == 'O') {cgennum();}
             if ( c != 'O' && 'X'){
                  c = 'O';
             }
             }
else if (cpu_line == 4){
             if (d == 'X') {cgennum();}
             while (d == 'X') {cgennum();}
             while (d == 'O') {cgennum();}
             if ( d != 'O' && 'X'){
                  d = 'O';
             }
             }
else if (cpu_line == 5){
             if (e == 'X') {cgennum();}
             while (e == 'X') {cgennum();}
             while (e == 'O') {cgennum();}
             if ( e != 'O' && 'X'){
                  e = 'O';
             }
             }
else if (cpu_line == 6){
             if (f == 'X') {cgennum();}
             while (f == 'X') {cgennum();}
             while (f == 'O') {cgennum();}
             if ( f != 'O' && 'X'){
                  f = 'O';
             }
             }
else if (cpu_line == 7){
             if (g == 'X') {cgennum();}
             while (g == 'X') {cgennum();}
             while (g == 'O') {cgennum();}
             if ( g != 'O' && 'X'){
                  g = 'O';
             }
             }
else if (cpu_line == 8){
             if (h == 'X') {cgennum();}
             while (h == 'X') {cgennum();}
             while (h == 'O') {cgennum();}
             if ( h != 'O' && 'X'){
                  h = 'O';
             }
             }
else if (cpu_line == 9){
             if (i == 'X') {cgennum();}
             while (i == 'X') {cgennum();}
             while (i == 'O') {cgennum();}
             if ( i != 'O' && 'X'){
                  i = 'O';
             }
             }
}
cout<<"Field map:\n";
cout<<"  "<<a<<" | "<<b<<"  |  "<<c<<" "<<endl;
cout<<"____|____|____"<<endl;
cout<<"  "<<d<<" | "<<e<<"  | "<<f<<"  "<<endl;
cout<<"____|____|____"<<endl;
cout<<"  "<<g<<" | "<<h<<"  | "<<i<<"  "<<endl;
cout<<"    |    |    \n";
cin.get();
}

> The code is crappy
Thanks for letting us know, and yes, it surely is pretty crappy.

Two consequences of this
1. It means you're careless, don't give a rats ass about your readers, and generally makes it hard for you to debug anyway.
2. It puts off everyone else from even bothering to look any deeper than, "oh my god, what a fsking mess"

soo complicated stuff?

u could do this just like this

Code:

string map[3][3]
int main()
{


      while(1)
{

cout<<"THYE WHOLE MAP";
string x;
x = toupper(getch());
system("cls");

if( x == "A")
{
       map[0][0] = "X";
}
else if //// BLABLABLA

// NOW FOR THE CPU

//MAKE RANDOM BLABLA ( the clock_t stuff )

int x = rand()% 9+1;

if ( x == 1 )
{
map[0][0];
}
else if ( x == 2 )
{
map[0][1]
}
//......
}
}

try this