yanded warmup A

#include <cstdio>

int main()
{
      int wkx, wky, wrx, wry, bkx, bky;
      char s[10];
      gets(s);
      wkx = s[0] - 97;
      wky = s[1] - 49;
      wrx = s[3] - 97;
      wry = s[4] - 49;
      bkx = s[6] - 97;
      bky = s[7] - 49;

      int kingattack[8][8] = {0};
      int rookattack[8][8] = {0};

      for (int dx = -1; dx <= 1; dx++)
            for (int dy = -1; dy <= 1; dy++)
                  if (dx != 0 or dy != 0)
                  {
                        int xx = wkx + dx;
                        int yy = wky + dy;
                        if (xx < 0 or xx >= 8 or yy < 0 or yy >= 8) continue;
                        kingattack[xx][yy] = 1;
                  }

      for (int i = 0; i < 8; i++) rookattack[wrx][i] = rookattack[i][wry] = 1;

      bool attacked = rookattack[bkx][bky];

      bool canmove = false;
      for (int dx = -1; dx <= 1; dx++)
            for (int dy = -1; dy <= 1; dy++)
                  if (dx != 0 or dy != 0)
                  {
                        int xx = bkx + dx;
                        int yy = bky + dy;
                        if (xx < 0 or xx >= 8 or yy < 0 or yy >= 8) continue;
                        canmove |= (kingattack[xx][yy] ^ 1) & (rookattack[xx][yy] ^ 1);
                  }

      if (kingattack[bkx][bky]) puts("Strange");
      else if (!attacked and canmove) puts("Normal");
      else if (attacked and canmove) puts("Check");
      else if (!attacked and !canmove) puts("Stalemate");
      else if (attacked and !canmove) puts("Checkmate");
      return 0;
}