Var i,x1,x2:integer; begin for i:=10 to 99 do begin x1:=i mod 10; x2:=i div 10; if (sqr(x1)+sqr(x2)) mod 13=0 then writeln(i); end; end.
//1б Var i,x1,x2:integer; begin for i:=10 to 99 do begin x1:=i mod 10; x2:=i div 10; if x1+x2+sqr(x1+x2)=i then writeln(i); end; end.
//2 Var i,n,a,k1,k2:integer; begin readln(n); for i:=1 to n do begin readln(a); if a<1985 then k1:=k1+1; if a>1990 then k2:=k2+1; end; writeln('Родившиеся до 1985:',k1); writeln('Родившиеся после 1990:',k2); end.
Var i,x1,x2:integer; begin for i:=10 to 99 do begin x1:=i mod 10; x2:=i div 10; if (sqr(x1)+sqr(x2)) mod 13=0 then writeln(i); end; end.
//1б Var i,x1,x2:integer; begin for i:=10 to 99 do begin x1:=i mod 10; x2:=i div 10; if x1+x2+sqr(x1+x2)=i then writeln(i); end; end.
//2 Var i,n,a,k1,k2:integer; begin readln(n); for i:=1 to n do begin readln(a); if a<1985 then k1:=k1+1; if a>1990 then k2:=k2+1; end; writeln('Родившиеся до 1985:',k1); writeln('Родившиеся после 1990:',k2); end.
var
i,sum:integer;
begin
sum:=0;
i:=5;
while i<=200 do
begin
sum:=sum+i;
i:=i+2;
end;
writeln ('Summa: ',sum);
end.