program obliczanie_potegi;
uses crt;
var
a:real;
n:word;
function power(x:real; i:word):real;
var
y:real;
j:word;
begin
if (x=0) and (i=0) then
begin
writeln(' symbol nieoznaczony 0 do 0');
halt;
repeat until keypressed
end;
y:=1;
for j:=1 to i do y:=y*x;
power:=y
end; {power}
begin {program staaart}
clrscr;
writeln('licze a do potegi n');
write('a='); readln(a);
write('n='); readln(n);
write('a do n=',power(a,n):0 :3);
readln()
end.
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