/in/foo.cc: In function 'void dfs(int, int)':
/in/foo.cc:25:7: warning: variable 'pd' set but not used [-Wunused-but-set-variable]
  bool pd=false;
       ^~
/in/foo.cc: In function 'int main()':
/in/foo.cc:44:28: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
  scanf("%d%d%I64d",&n,&m,&p);
                            ^
/in/foo.cc:59:59: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
      printf("%I64d\n",(f[1][i][0]+f[1][i][1]+f[1][i][2])%p);
                                                           ^