program kiemtra;
uses crt;
var A:array[1..10000] of integer;
n,i,k:integer;
kt:boolean;
begin
clrscr;
write('Nhap so luong phan tu n: '); readln(n);
writeln('NHAP GIA TRI TUNG PHAN TU CUA MANG');
for i:=1 to n do
begin
write(A[',i,']= ');
readln(A[i]);
end;
write('Nhap k: '); readln(k);
writeln('DAY VUA NHAP LA: ');
kt:=false;
for i:=1 to n do
begin
write(A[i],' ');
if A[i]=k then kt:=true;
end;
writeln;
if kt=false then write('Khong co')
else
begin
write('Vi tri xuat hien cua ',k,' trong mang la: ');
for i:=1 to n do
if A[i]=k then write(i,' ');
end;
readln
end.
