运行 ID: 30549

Main.cc: In function ‘void slv()’:
Main.cc:14:5: error: ‘n’ was not declared in this scope
     n=read();up(i,1,n)a[i]=read();
     ^
Main.cc:14:7: error: ‘read’ was not declared in this scope
     n=read();up(i,1,n)a[i]=read();
       ^~~~
Main.cc:14:7: note: suggested alternative: ‘fread’
     n=read();up(i,1,n)a[i]=read();
       ^~~~
       fread