【三子棋】

自编,不是靠打谱来下棋的,只判断了最基础的胜负条件

//三子棋
#include<bits/stdc++.h>
#include<windows.h>
using namespace std;
const int N=1e3+5;
char a[N][N];
int n,m;
void cpu_win(){
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cout<<a[i][j];
		}
		cout<<'\n';
	}
	cout<<"CPU win!";
}
void you_win(){
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cout<<a[i][j];
		}
		cout<<'\n';
	}
	cout<<"You win!";
}
signed main(){
	ios::sync_with_stdio(0);
	n=m=3;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			a[i][j]='.';
		}
	}
	int T=5;
	while(T--){
		system("cls");
		for(int i=1;i<=n;i++){
			for(int j=1;j<=m;j++){
				cout<<a[i][j];
			}
			cout<<'\n';
		}
		int x,y;
		cin>>x>>y;
		while(a[x][y]!='.'){
			cout<<"There's something here\n";
			cin>>x>>y;
		}
		a[x][y]='X';
		bool he;
		bool tiao=0;
		//+++++++++++++++++玩家_win+++++++++++++++++++
		for(int i=1;i<=n;i++){
			he=1;
			for(int j=1;j<=m;j++)if(a[i][j]!='X'){
				he=0;
				break;
			}
			if(he){
				you_win();
				return 0;
			}
		}
		for(int i=1;i<=m;i++){
			he=1;
			for(int j=1;j<=n;j++)if(a[j][i]!='X'){
				he=0;
				break;
			}
			if(he){
				you_win();
				return 0;
			}
		}
		he=1;
		for(int i=1;i<=n;i++){
			if(a[i][i]!='X'){
				he=0;
				break;
			}
		}
		if(he){
			you_win();
			return 0;
		}
		he=1;
		for(int i=1;i<=n;i++){
			int j=n-i+1;
			if(a[i][j]!='X'){
				he=0;
				break;
			}
		}
		if(he){
			you_win();
			return 0;
		}
		//+++++++++++++++++CPU_win+++++++++++++++++++
		for(int i=1;i<=n;i++){
			int s=0;
			for(int j=1;j<=m;j++)s+=(a[i][j]=='O');
			if(s==2){
				for(int j=1;j<=m;j++){
					if(a[i][j]=='.'){
						a[i][j]='O';
						cpu_win();
						return 0;
					}
				}
			}
		}
		for(int i=1;i<=m;i++){
			int s=0;
			for(int j=1;j<=n;j++)s+=(a[j][i]=='O');
			if(s==2){
				for(int j=1;j<=n;j++){
					if(a[j][i]=='.'){
						a[j][i]='O';
						cpu_win();
						return 0;
					}
				}
			}
		}
		int s=0;
		for(int i=1;i<=n;i++){
			if(a[i][i]=='O')s++;
			if(s==2){
				for(int j=1;j<=n;j++){
					if(a[j][j]=='.'){
						a[j][j]='O';
						cpu_win();
						return 0;
					}	
				}
			}
		}
		s=0;
		for(int i=1;i<=n;i++){
			int j=n-i+1;
			if(a[i][j]=='O')s++;
			if(s==2){
				for(int l=1;l<=n;l++){
					int k=n-l+1;
					if(a[l][k]=='.'){
						a[l][k]='O';
						cpu_win();
						return 0;
					}
				}
			}
		}
		//++++++++++++++++CPU阻止++++++++++++++++++
		Sleep(1000);
		for(int i=1;i<=n;i++){
			s=0;
			for(int j=1;j<=m;j++)s+=(a[i][j]=='X');
			if(s==2){
				for(int j=1;j<=m;j++){
					if(a[i][j]=='.'){
						a[i][j]='O';
						tiao=1;
						break;
					}
				}
			}
		}
		if(tiao)continue;
		for(int i=1;i<=m;i++){
			s=0;
			for(int j=1;j<=n;j++)s+=(a[j][i]=='X');
			if(s==2){
				for(int j=1;j<=n;j++){
					if(a[j][i]=='.'){
						a[j][i]='O';
						tiao=1;
						break;
					}
				}
			}
		}
		if(tiao)continue;
		s=0;
		for(int i=1;i<=n;i++){
			if(a[i][i]=='X')s++;
			if(s==2){
				for(int j=1;j<=n;j++){
					if(a[j][j]=='.'){
						a[j][j]='O';
						tiao=1;
						break;
					}	
				}
			}
		}
		if(tiao)continue;
		s=0;
		for(int i=1;i<=n;i++){
			int j=n-i+1;
			if(a[i][j]=='X')s++;
			if(s==2){
				for(int l=1;l<=n;l++){
					int k=n-l+1;
					if(a[l][k]=='.'){
						a[l][k]='O';
						tiao=1;
						break;
					}
				}
			}
		}
		if(tiao)continue;
		//+++++++++++++++++++++++++CPU杀招++++++++++++++++++++++++++++++
		bool flag=1;
		for(int i=1;i<=n;i++){
			for(int j=1;j<=m;j++){
				if(a[i][j]=='.'){
					int anss=0;
					if(a[i][j-1]=='O'&&a[i][j+1]!='X')anss++;
					if(a[i][j+1]=='O'&&a[i][j-1]!='X')anss++;
					if(a[i-1][j]=='O'&&a[i+1][j]!='X')anss++;
					if(a[i+1][j]=='O'&&a[i-1][j]!='X')anss++;
					if(a[i-1][j-1]=='O'&&a[i+1][j+1]!='X')anss++;
					if(a[i+1][j+1]=='O'&&a[i-1][j-1]!='X')anss++;
					if(a[i-1][j+1]=='O'&&a[i+1][j-1]!=x)anss++;
					if(a[i+1][j-1]=='O'&&a[i-1][j+1]!=x)anss++;
					if(anss>=2){
						tiao=1;
						a[i][j]='O';
						flag=0;
						break;
					}
				}
			}
			if(!flag)break;
		}
		if(tiao)continue;
		//++++++++++++++++++++++++++CPU没思路++++++++++++++++++++++++++++
		flag=1;
		for(int i=1;i<=n;i++){
			for(int j=1;j<=m;j++){
				if(a[i][j]=='O'){
					if(i+1<=n&&a[i+1][j]=='.'){
						a[i+1][j]='O';
						flag=0;
						break;
					}
					if(i-1<=n&&a[i-1][j]=='.'){
						a[i-1][j]='O';
						flag=0;
						break;
					}
					if(j+1<=n&&a[i][j+1]=='.'){
						a[i][j+1]='O';
						flag=0;
						break;
					}
					if(j-1<=n&&a[i][j-1]=='.'){
						a[i][j-1]='O';
						flag=0;
						break;
					}
				}
			}
			if(!flag)break;
		}
		if(flag){
			for(int i=1;i<=n;i++){
				for(int j=1;j<=m;j++){
					if(a[i][j]=='.'){
						a[i][j]='O';
						flag=0;
						break;
					}
				}
				if(!flag)break;
			}
		}
	}
	cout<<"It ends in a draw";
}

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