The proper use of IF-ELSE (but especially begin-end; etc.)

[JSoftware]

Your particular C code would be this in pascal:
[pascal]
if x <= y then
do_stuff()
else if ... then
begin
do_otherstuff();
do_more();
end
else if ... then
do_this()
else
begin
do_that();
do_this();
end;
[/pascal]