运行 ID: 41978

Main.cc: In function ‘void read(T& ...)’:
Main.cc:26:14: warning: fold-expressions only available with -std=c++1z or -std=gnu++1z
     (read(x),...);
              ^~~
Main.cc: In function ‘void slv()’:
Main.cc:93:5: error: expected ‘;’ before ‘}’ token
     }
     ^