[PASCAL 11] vẽ tam giác bằng dấu sao

K

kophaidangvuadau

uses crt;
var n,i,j:longint;
begin
write('Chieu cao = ');
readln(n);
clrscr;
for i:=1 to n do
begin
if i<> n then
for j:=1 to n*2-1 do
if (j = n-i+1) OR (j = n+i-1) then write('*') else write(' ')
else
for j:=1 to n*2-1 do
write('*');
writeln;
end;
readln;
end.
 
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