Задача 18
Задача 23
Задача 24
program task24; var N, d, m: integer; begin readln(N); m := N mod 10; while N > 0 do begin d := N mod 10; if d > m then if d mod 2=0 then m := d; N := N div 10 end; if m = 0 then writeln('NO') else writeln(m) end.
program task24; var N, d, m: integer; begin readln(N); m := N mod 10; while N > 0 do begin d := N mod 10; if d > m then if d mod 2=0 then m := d; N := N div 10 end; if m = 0 then writeln('NO') else writeln(m) end.