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ultimate tic tac toe in cpp
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ultimate tic tac toe in cpp
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/*
/*
ULTIMATE TIC TAC TOE
*/
#include <iostream>
#include<stdlib.h>
#include<stdio.h>
#include<vector>
#include <time.h>
#include <algorithm>
using namespace std;
char square[10][10];
char boom(char a){
if(a=='X'||a=='O')
return a;
else
return ' ';
}
char boom1(char a){
if(a=='X'||a=='O')
return a;
else
return '.';
}
void convert()
{
int i,j,k;
for(i=1;i<4;i++)
{
for(j=1;j<4;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=1;i<4;i++)
{
for(j=4;j<7;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=1;i<4;i++)
{
for(j=7;j<10;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=4;i<7;i++)
{
for(j=1;j<4;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=4;i<7;i++)
{
for(j=4;j<7;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=4;i<7;i++)
{
for(j=7;j<10;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=7;i<10;i++)
{
for(j=1;j<4;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=7;i<10;i++)
{
for(j=4;j<7;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
for(i=7;i<10;i++)
{
for(j=7;j<10;j++)
{
cout<<boom1(square[i][j]);
}
}
cout<<"\n";
}
bool myfunction (int i,int j) {
return (i<j);
}
/*
* Board is a structure which stores information about the board.
* out store whether a particular grid has been won by someone.
* b stores whether a particular coordinate is occupied by someone.
* filled stores whether a particular grid is complete.
*
*/
struct board{
int out[10];
int b[10][10];
int filled[10];
vector<int> proper[10];
vector<int> pell;
} d;
/*
* The function boom converts the board into the required format.
*/
/*
* The function print prints the board in the required format.
*/
//int print(board d);
/*
* The function possible checks if a particular move is possible or not.
*/
int possible(int i,int choice,board d){
if( (d.out[choice]!=choice) || (d.filled[choice]==1) )
return -1;
else if( d.b[choice][i]!=i )
return 0;
return 1;
}
/*
* The function search checks if a particular element is there in the vector.
*/
int linear_search( vector<int> d, int a ){
int i;
for(i=0;i<d.size();i++){
if(d.at(i)==a){
return i;
}
}
return -1;
}
int isfilled(board d);
/*
* The function checkwin checks if after a certain stage anyone has won the game.
*/
int checkwin(int *square);
int play(int n,board s,int player,int choose){
int iter,p,win,i,countwin=0;
char mark;
board d;
int choice[2],original;
choice[0]=choose;
original=player;
for(iter=1;iter<=n;iter++)
{
d=s;
choice[0]=choose;
do
{
player=(player%2)?1:2;
p=rand()%9+1;
//wanted=bot(d,choice[0],player);
if(possible(p,choice[0],d)!=-1)
{
p=rand()%(d.proper[choice[0]].size()-1)+1;
choice[1]=d.proper[choice[0]].at(p);
}
else
{
p=rand()%(d.pell.size()-1)+1;
choice[0]=d.pell.at(p);
p=rand()%(d.proper[choice[0]].size()-1)+1;
choice[1]=d.proper[choice[0]].at(p);
}
mark=(player == 1) ? 'X' : 'O';
d.b[choice[0]][choice[1]]=(mark=='X') ? -1 : 0;
int m=linear_search (d.proper[choice[0]], choice[1]);
d.proper[choice[0]].erase(d.proper[choice[0]].begin()+m);
d.out[choice[0]]=checkwin(d.b[choice [0]]);
if(d.out[choice[0]]==-1)
d.out[choice[0]]=choice[0];
else if(d.out[choice[0]]==0)
{
d.filled[choice[0]]=1;
d.out[choice[0]]=choice[0];
int n=linear_search (d.pell, choice[0]);
d.pell.erase(d.pell.begin()+n);
}
else
{
d.out[choice[0]]=(player==1)? -1:0;
d.filled[choice[0]]=1;
win=checkwin(d.out);
int n=linear_search (d.pell, choice[0]);
d.pell.erase(d.pell.begin()+n);
if(win==1)
{
//printf("Player %d wins",player);
break;
}
if(win==0)
{
//printf("DRAW!!!!!!!!!");
break;
}
}
if(isfilled(d))
{
//printf("Draw!!!!!!\n");
break;
}
choice[0]=choice[1];
i=-1;
player++;
}
while(i==-1);
if(player==original)
countwin++;
}
return countwin;
}
int bot(board s,int choice,int player)
{
int k=0,max=-1,l=0,pos=0,i=1,j,ch=0,m=0,max1=-1,ch1=0,pos1=0,e[100][3];
board d;
d=s;
ch=choice;
//cout<<d.out[choice]<<" "<<choice<<"\n";
if(possible(i,choice,d)!=-1)
{
ch=choice;
for(i=2;i<=9;i+=2)
{
d=s;
if(possible(i,choice,d))
{
d.b[choice][i]=(player == 1) ? -1 : 0;
if(checkwin(d.b[choice])==1)//change
{
return choice*10+i;
}
}
}
for(i=1;i<=9;i+=2)
{
if(i!=5)
{
d=s;
if(possible(i,choice,d))
{
d.b[choice][i]=(player == 1) ? -1 : 0;
if(checkwin(d.b[choice])==1)//change
{
return choice*10+i;
}
}
}
}
i=5;
d=s;
if(possible(i,choice,d))
{
d.b[choice][i]=(player == 1) ? -1 : 0;
if(checkwin(d.b[choice])==1)//change
{
return choice*10+i;
}
}
for(i=1;i<=9;i++)
{
d=s;
if(possible(i,choice,d))
{
d.b[choice][i]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==-1)
{
if(i==choice)
return 10*choice+i;
l=play(1000,d,player,i);
if(i==5)//change
l=l-400;//change
if(i==2||i==4||i==6||i==8)//change
l=l+30;//change
if(max<l)
{
max=l;
pos=i;
}
}
else
{
m=play(1000,d,player,j);
if(max1<m)
{
max1=m;
pos1=j;
ch1=i;
}
}
}
}
}
else
{
for(i=1;i<=9;i++)
for(j=1;j<=9;j++)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==1)
{
//e[k][0]=i;
//e[k][1]=j;
//++k;
d.out[i]=(player == 1) ? -1 : 0;
if(checkwin(d.out)==1)
return i*10+j;
}
}
}
i=5;
for(j=1;j<=9;j++)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==1)
{
//e[k][0]=i;
//e[k][1]=j;
//++k;
return i*10+j;
}
}
}
i=5;
for(j=1;j<=9;j++)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==1)
{
//e[k][0]=i;
//e[k][1]=j;
//++k;
return i*10+j;
}
}
}
for(i=1;i<=9;i+=2)
for(j=1;j<=9;j++)
{
if(i!=5)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==1)
{
//e[k][0]=i;
//e[k][1]=j;
//++k;
return i*10+j;
}
}
}
}
for(i=2;i<=9;i+=2)
for(j=1;j<=9;j++)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[i])==1)
{
//e[k][0]=i;
//e[k][1]=j;
//++k;
return i*10+j;
}
}
}
for(i=1;i<=9;i++)
for(j=1;j<=9;j++)
{
d=s;
if(possible(j,i,d)==1)
{
d.b[i][j]=(player == 1) ? -1 : 0;
if(checkwin(d.b[j])==-1)
{
l=play(1000,d,player,j);
if(j==5)//change
l=l-400;//change
if(j==2||j==4||j==6||j==8)//change
l=l+30;//change
if(max<l)
{
max=l;
pos=j;
ch=i;
}
}
else
{
m=play(1000,d,player,j);
if(j==5)//change
l=l-200;//change
if(j==2||j==4||j==6||j==8)//change
l=l+35;//change
if(max1<m)
{
max1=m;
pos1=j;
ch1=i;
}
}
}
}
}
cout <<"max="<<max<<"\n";
if(max==-1)
return ch1*10+pos1;
return ch*10+pos;
}
//int checkwin(char *square);
/*********************************************
FUNCTION TO RETURN GAME STATUS
1 FOR GAME IS OVER WITH RESULT
-1 FOR GAME IS IN PROGRESS
O GAME IS OVER AND NO RESULT
2 FOR GAME IS IN PROGRESS
**********************************************/
int isfilled(board d)
{
for(int i=1;i<10;i++)
if(d.filled[i]==0)
return 0;
return 1;
}
int checkwin (int* square)
{
if (square[1] == square[2] && square[2] == square[3] )
return 1;
else if (square[4] == square[5] && square[5] == square[6])
return 1;
else if (square[7] == square[8] && square[8] == square[9])
return 1;
else if (square[1] == square[4] && square[4] == square[7])
return 1;
else if (square[2] == square[5] && square[5] == square[8])
return 1;
else if (square[3] == square[6] && square[6] == square[9])
return 1;
else if (square[1] == square[5] && square[5] == square[9])