运行 ID: 129422

Main.cc: In function ‘int main()’:
Main.cc:7:2: error: ‘sgit’ was not declared in this scope
  sgit((a-b)*(a-b)+(c-d)*(c-d))=o;
  ^~~~
Main.cc:7:2: note: suggested alternative: ‘exit’
  sgit((a-b)*(a-b)+(c-d)*(c-d))=o;
  ^~~~
  exit