运行 ID: 42115

Main.cc: In function ‘bool hui(int)’:
Main.cc:25:2: error: expected primary-expression before ‘if’
  if(num==h)return 1;
  ^~
Main.cc:20:10: warning: unused variable ‘num’ [-Wunused-variable]
  int h=0,num=n;
          ^~~