/in/foo.cc: In function 'int main()':
/in/foo.cc:21:66: error: expected ';' before ')' token
     if(k>=1) f[i][j][k]=(f[i][j][k]+f[i-1][j][k-1]  *(m-j-k+1))*j)%M;//在一列有炮一列没炮上各放一个 
                                                                  ^
/in/foo.cc:31:17: warning: format '%d' expects argument of type 'int', but argument 2 has type 'LL {aka long long int}' [-Wformat=]
  printf("%d",ans);
                 ^