运行 ID: 7715

Main.cc: In function ‘int main()’:
Main.cc:10:5: error: expected ‘;’ before ‘return’
     return 0;
     ^~~~~~
Main.cc:6:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&a,&b);
     ~~~~~^~~~~~~~~~~~~~