Сделайте 3 задание в опен оффисе

//4) var   x1, y1, x2, y2, x3, y3, x4, y4: integer;   s, sc: real; function linelength(x1, y1, x2, y2: integer): real; begin   linelength : = sqrt(sqr(x2 - x1) + sqr(y2 - y1)); end; procedure ger(a, b, c: real); var   p: real; begin   p : = (a + b + c) / 2;   sc : = sqrt(p * (p - a) * (p - b) * (p - c)); end; begin   write('1: '); readln(x1, y1);   write('2: '); readln(x2, y2);   write('3: '); readln(x3, y3);   write('4: '); readln(x4, y4);   ger(linelength(x1, y1, x2, y2), linelength(x2, y2, x3, y3), linelength(x1, y1, x3, y3));   s : = s + sc;   ger(linelength(x1, y1, x4, y4), linelength(x4, y4, x3, y3), linelength(x1, y1, x3, y3));   s : = s + sc;   writeln(s); end. //3) var   a, b, c: integer; function sce(var a: integer): integer; var   sc, c: integer; begin   while a < > 0 do   begin       c : = a mod 10;       a : = a div 10;       sc : = sc + c;   end;   sce : = sc; end; begin   read(a, b, c);   if (sce(a) > sce(b)) and (sce(a) > sce(c)) then writeln(a) else   if (sce(b) > sce(a)) and (sce(b) > sce(c)) then writeln(b) else   if (sce(c) > sce(a)) and (sce(c) > sce(b)) then writeln(c) else   if (sce(c) = sce(a)) and (sce(a) = sce(b)) then writeln('равны'); end.