wondrous.c

// by Sabrina Rispin
// Activity Section: 3
// Date: 22/3/15
// Description: The wonderous function prints out a string of number
// following the rule that the next number in the sequence is:
// a) the previous num/2 (if num was even)
// b) the previous num * 3 + 1 (if num was odd)

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

int printWondrous (int start);

int main (int argc, char * argv[]) {
    int startNum;
    int numOfTerms;
    printf("Pleas enter a starting number: ");
    scanf ("%d", &startNum);

    numOfTerms = printWondrous (startNum);
    printf("Number of Terms: %d\n", numOfTerms);

    return EXIT_SUCCESS;
}

int printWondrous (int start) {
    int numOfTerms = 1;

    int num = start;
    printf ("%d ", num);

    while (num != 1) {
        if ((num % 2) == 0) {
            num /= 2;
            printf ("%d ", num);
        } else {
            num = 3 * num + 1;
            printf ("%d ", num);
        }
        numOfTerms++;
    }
    printf ("\n");

    return numOfTerms;
}
Download file:
wondrous.c (1.0 KB)
Comments

Chat
