example of printing star pattern

#include <stdio.h>

void starPattern(int rows)
{
  for (int i = 0; i < rows; i++)
  {
    for (int j = 0; j <= i; j++)
    {
      printf("*");
    }
    printf("\n");
  }
}

void reverseStarPattern(int rows)
{
  for (int i = 0; i < rows; i++)
  {
    for (int j = 0; j <= rows - i - 1; j++)
    {
      printf("*");
    }
    printf("\n");
  }
}

int main()
{
  int rows, type;
  printf("Enter 0 for star pattern \nEnter 1 for reversed star pattern\n");
  scanf("%d", &type);
  printf("How many rows do you want?\n");
  scanf("%d", &rows);
  switch (type)
  {
  case 0:
    starPattern(rows);
    break;

  case 1:
    reverseStarPattern(rows);
    break;

  default:
    printf("You have entered an invalid choice");
    break;
  }

  return 0;
}