Код Pascal 1 const pi=3.14; 2 var n,m: real; 3 function S(r: real): real; 4begin 5 S:=pi*r*r; 6 end; 7begin 8write('R1='); readln(n); n:=S(n); 9write('R2='); readln(m); m:=S(m); 10writeln('S=',abs(n-m)); 11end.