Квадраты в игре "Крестики-нолики"

#include <iostream>
#include <cstdlib>
 
using namespace std;
 
bool checkLine(int n1, int n2, int n3)
{
    if (n1 == n2 || n2 == n3)
        return false;
 
    int dx = n2 / 3 - n1 / 3;
    int dy = n2 % 3 - n1 % 3;
    int dx2 = n3 / 3 - n2 / 3;
    int dy2 = n3 % 3 - n2 % 3;
 
    if (dx == dx2 && dy == dy2)
        return true;
    else
        return false;
}
 
int main()
{
    int n1, n2, n3;
 
    cin >> n1 >> n2 >> n3;
 
    if (checkLine(n1 - 1, n2 - 1, n3 - 1))
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
    
    system("pause");
    return 0;
}

#include <iostream>
#include <cstdlib>
 
using namespace std;
 
int main()
{
    int n1, n2, n3;
 
    cin >> n1 >> n2 >> n3;
    
    if (n1 == 1 && n2 == 2 && n3 == 3 || n1 == 4 && n2 == 5 && n3 == 6 || n1 == 7 && n2 == 8 && n3 == 9 || n1 == 1 && n2 == 4 && n3 == 7 || n1 == 2 && n2 == 5 && n3 == 8 || n1 == 3 && n2 == 6 && n3 == 9 || n1 == 1 && n2 == 5 && n3 == 9 || n1 == 3 && n2 == 5 && n3 == 7)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
 
    system("pause");
    return 0;
}

#include <iostream>
#include <cstdlib>
 
using namespace std;
 
int main()
{
    int n1, n2, n3;
 
    cin >> n1 >> n2 >> n3;
    
    if (n1 == 1 && n2 == 2 && n3 == 3 || n1 == 4 && n2 == 5 && n3 == 6 || n1 == 7 && n2 == 8 && n3 == 9 || n1 == 1 && n2 == 4 && n3 == 7 || n1 == 2 && n2 == 5 && n3 == 8 || n1 == 3 && n2 == 6 && n3 == 9 || n1 == 1 && n2 == 5 && n3 == 9 || n1 == 3 && n2 == 5 && n3 == 7)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
 
    system("pause");
    return 0;
}

#include <iostream>
using namespace std;
void main() {
 int a = 0, b = 0, c = 0;
 cin >> a >> b >> c;
 
 if (a < b&&b < c && a >= 1 && c <= 9) {
  if (a == b - 1 && b == c - 1 && c % 3 == 0)
   cout << "horizon\n";
  else if (a == b - 3 && b == c - 3)
   cout << "vertical\n";
  else if (a == b - 4 && b == c - 4 && a == 1 ||
   a == b - 2 && b == c - 2 && a == 3)
   cout << "diagonal\n";
  else cout << "Mimo\n";
 }
 else
  cout << "Input error\n";
 system("pause");
}

#include <iostream>
using namespace std;
void main()
 {
static int Table[]={0, 
                  2,7,6,
                  9,5,1,
                  4,3,8};
 int n1, n2, n3;
  cin >> n1 >> n2 >> n3;
 if((Table[n1]+Table[n2]+Table[n3])==15)
   cout << "BINGO"<<endl;
  else
   cout << "O-O-P-S";
 
}