运行 ID: 34612

Main.cc:17:16: error: use of ‘auto’ in parameter declaration only available with -std=c++14 or -std=gnu++14
 inline int mul(auto x, auto y)
                ^~~~
Main.cc:17:24: error: use of ‘auto’ in parameter declaration only available with -std=c++14 or -std=gnu++14
 inline int mul(auto x, auto y)
                        ^~~~