Thread: Counting loops

I'm busy with a code (in the learning phases) and everything is working just fine, but I wanted to know how you can print the number of times a program had to loop (loop_count).

The program:

The point of the program is that the user will be prompted to enter a score(s). The program will stop prompting for the score or end the loop when the user enters a negative integer.

Once the loop has ended, the number of scores will be counted and printed in the following text.

Lets say the user entered 8 > 7 > 5 > -4 // the negative is ignore and not added to the
//total scores counted.
You entered 3 scores.

Example:

Code:

#include <stdio.h>

int main()
{
	int user_input = 1;
        int loop_count;
	
	printf("The program calculates the average of scores you enter.\n");
	printf("End with a negative integer.\n"); //note that the loop ends when the user 
	                                                                //enters a negative integer
	do
	{
		printf("Enter score (3-10):");
		user_input++;
		scanf("%d", &user_input);
	}
	while(user_input > -1);
	
	loop_count = ??? ; //I'm not sure how to construct this. The loop_count should not
                                      //include the negative integer, used to exit the loop
	
	printf("You entered %d scores.\n", loop_count);
	
	return 0;
}

The final product should look like this:

Code:

The program calculates the average of scores you enter.
End with a negative integer.
Enter score (3-10):5
Enter score (3-10):8
Enter score (3-10):8
Enter score (3-10):6
Enter score (3-10):5
Enter score (3-10):7
Enter score (3-10):5
Enter score (3-10):-1
You entered 7 scores.

Add a variable inside the loop previously initialized to 0 and increment it each time loop gets executed.

Code:

int times = 0;

do
	{
		printf("Enter score (3-10):");
		user_input++;
		scanf("%d", &user_input);
                times++;
	}
...

brilliant!! I had tried loop_count++ before and it gave me a ridiculous (large) number and I now realize (thanks to you two), I had forgotten to declare: int loop_count = 0;

Thank you all!

The final code checks correct and looks like this:

Code:

#include <stdio.h>

int main()
{
	int user_input = 1, loop_count = 0;
	float loop_count_average; //still working on this
	
	printf("The program calculates the average of scores you enter.\n");
	printf("End with a negative integer.\n");
	
	do
	{
		printf("Enter score (3-10):");
		user_input++;
		loop_count++;
		scanf("%d", &user_input);
	}
	while(user_input > -1);
	
	loop_count = loop_count--;//filters the negative integer
	
	printf("You entered %d scores.\n", loop_count);
        printf("Average score: %.2f\n");//still working on this
	
	return 0;
}

Just out of curiosity, what does the void in int main(void) mean?