运行 ID: 1619

Main.cc: In function ‘int main()’:
Main.cc:22:2: error: expected ‘}’ at end of input
  }
  ^
Main.cc:4:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&a);
  ~~~~~^~~~~~~~~