/* lab5.c practice loop and branch 
   <Your Name> working with <Your Partner>
*/
#include <stdio.h>
#include <ctype.h>

void greetMe();
void allOdds();
void allEvens();
void allThrees();
void fizzBuzz();

int main()
{
  char select, rerun;

  while (1) {
    printf("Select one program:\n");
    printf("- A: greetMe\n");
    printf("- B: allOdds\n");
    printf("- C: allEvens\n");
    printf("- D: allThrees\n");
    printf("- E: fizzBuzz\n");
    printf("Enter selction: ");
    scanf("%c", &select);

    select = toupper(select);

    switch (select) {
      case 'A':
        greetMe();
        break;
      case 'B':
        allOdds();
        break;
      case 'C':
        allEvens();
        break;
      case 'D':
        allThrees();
        break;
      case 'E':
        fizzBuzz();
        break;
    }
    while (getchar() != '\n');

    printf("\nRun another? (y/n): ");
    scanf("%c", &rerun);

    rerun = tolower(rerun);

    if (rerun == 'n') {
      break;
    }
    while (getchar() != '\n');


  }

  return 0;
}

void greetMe(){
  printf("This function will show \"Welcome!\" many times as you request.\n");
    
  int times;

  printf("Enter the number of times you want to show welcome: \n");
  scanf("%d", &times);

  for (int i = 0; i < times; i++) {
    printf("Welcome!\n");
  }
    
    
}
void allOdds(){
  printf("\nThis function print all odds in [0, 10]\n");


  for (int i = 0; i <= 10; i++) {
    if (i % 2) {
      printf("%d\n", i);
    }
  }
    
}
void allEvens(){
  printf("\nThis function print all evens in [0, 10]\n");

  for (int i = 0; i <= 10; i++) {
    if (!(i % 2)) {
      printf("%d\n", i);
    }
  }
    
}

void allThrees(){
  printf("\nThis function print all mutiple of 3 in [0, 10]\n");

  for (int i = 0; i <=10; i++) {
    if (!(i % 3)) {
      printf("%d\n", i);
    }
  }
    
}
void fizzBuzz(){
  printf("\nThis function print numbers 1 to 30, but 'fizz' for multiples of 3, 'buzz' for multiples \
  of 5 and 'fizzbuzz' for multiples of both 3 and 5.\n");

  for (int i = 1; i <= 30; i++) {

    if (!(i % 3) && !(i % 5)  ) {
      printf("fizzbuzz\n");
    } else if (!(i % 3) ) {
      printf("fizz\n");
    } else if (!(i % 5) ) {
      printf("buzz\n");
    } else {
      printf("%d\n", i);
    }

     
  }
    
}