uses crt;
var i,n,k,x,y:integer;
a:array[1..100]of integer;
begin
writeln('nhap n va k');readln(n,k);
for i:=1 to n do begin
write('a[i]=');
readln( a[i]);
end;
i:=1; y:=0;
if a[1]<>k then
while (y=0)and(i<=n) do
if a[i]=k then begin x:=i;
y:=y+1;end
else i:=i+1;
writeln('vi tri dau tien la ',x);
for i:=1 to n do
if a[i]=k then begin
x:=i;
writeln('vi tri k trong mang la ',x);
end;
readln
end.
uses crt;
var a:array[1..200]of integer;
i,n,k,dem:integer;
begin
clrscr;
write('nhap so phan tu:'); readln(n);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{-----------------------------------------------------}
for i:=1 to n do write(a[i],' ');
{----------------------------------------------------------------}
writeln;
write('nhap so can kiem tra:'); readln(k);
dem:=0;
for i:=1 to n do
if a[i]=k then dem:=dem+1;
writeln('trong day co ',dem,' so ',k);
readln;
end.