编程打印下面图案的C程序

直接四行打印指令不就成了？
main () {
printf ("*");
printf ("***");
printf ("*****");
printf ("******* ");
}

main () {
int a,b;
for (a = 1;a <= 4;a++) {
for (b = 1;b <= 2 * a - 1;b++) {
printf("*");
}
printf("\n");
}
getch ();
}