Why does printf not work in my program (Tried flushing)

Question

I learned Objective-C before C and now that I am going back to C, I don't understand why the printf() inside the loops does not work? Could someone advise me?

The program is the first challenge in the book "Programming Challenges" By Skiena and Revilla if anyone is wondering.

#include <stdio.h>
#include <stdbool.h>

static int inputInt;
static int secondInt;
int returnCycleNumber(int givenNumber);

int returnCycleNumber(int givenNumber) {
    bool initial = true;
    int counter = 1;

    do
    {
        if (givenNumber % 2 != 0)
        {
            givenNumber = givenNumber * 3 + 1;
            counter = counter + 1;

            printf("\n%i", givenNumber);
        }
        else
        {
            givenNumber = givenNumber / 2;
            counter = counter + 1;

            printf("\n%i", givenNumber);
        }

        if (givenNumber == 1) {
            initial = false;
        }

    } while (initial == true && givenNumber > 1);

    return counter;
}

int main(int argc, const char * argv[])
{
    scanf("%i %i", &inputInt, &secondInt);
    fflush(stdout);

    int arrayCount[secondInt];

    for (int counter = 0; counter == (secondInt - inputInt); counter++ ) {
        arrayCount[counter] = returnCycleNumber(inputInt + counter);
    }

    printf("\n%i", arrayCount[1]);


    return 0;
}

I suspect if you used a debugger and stepped through it you'd see what the problem was. — Brian Roach, Jun 27 '13 at 02:58

score 3 · Answer 1 · answered Jun 27 '13 at 02:56

3

counter == (secondInt - inputInt)

You want != or <

answered Jun 27 '13 at 02:56

Jim Balter

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damn i just took so long looking at everything else but that :( – Karthik T Jun 27 '13 at 03:01

score 0 · Answer 2 · answered Jun 27 '13 at 04:09

0

Try this

for (int counter = 0; counter < (secondInt - inputInt); counter++ ) {

answered Jun 27 '13 at 04:09

haccks

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Why does printf not work in my program (Tried flushing)

2 Answers2