Bucky, you forgot the ‘free’.. there is a memory leak.

Buckey you are awsome

Why couldn’t you ask the user how many numbers he wants to enter-int a, scan this a, and then create int tab[a].

Hey bucky your program is wrong because the exact average is 40.4 not 56…
my program is :
#include
#include
#include
#include
#include

int main () {

int i, howMany;
int total;
int * pointsArray;

printf(“How many numbers you want to average ? n”);
scanf(” %d”, &howMany);

pointsArray = (int *) malloc(howMany * sizeof(int));

printf(“type it in !!! n”);

for(i=0; i

how can i make it printf(“你叫什么名字？”); ?

How do I make a 2d array with indefinite size?

I want the user to input the number of rows and columns, and just then create the matrix.

Can someone help?

well, I know what is heap but from this example did not get the benefit of using it.

How come you don’t just declare total as a double instead of an int and type cast?

hi check out this program please :

#include
#include
#include
#include
#include

int main (void) {

int i;
int howMany;
int total = 0;
int number[howMany];
float average = 0.0;

printf(“how many number do you want to average ?n”);
scanf(“%d”, &howMany);

for(i=0;i

Hey Bucky! You forgot to free the memory 😛

Thanks a lot 🙂

how do i use this for strings?

i still don’t get the advantage of using the heap. we can define the memory size by coding like that
int size;
printf(“how many number do you want to average:n”);
scanf(“%d”, &size);
int pointArray[size];

Enter them then:
23.2
55.4
2.65
65.4
5
9.23
The average of your 6 numbers is: 6564233273361341000000000000000.00

this is what i got after input 6 numbers.What have I done wrong? As I said in a previous comment i did copy/paste the code from the tutorial but modified (except variable i) from int to float.Also I did initialize all variables, set them equal to 0.I also entered free(pointsArray); after i print out the average and should probably mention I use Windows 10.Could it be a Windows 10 bug?

???? it doesn’t work, when I type in two numbers, 50 and 100, it gives me 79.00000?
int main()
{
    int i, howMany;
    int total;
    float average = 0.0;
    int * pointsArray;
    printf(“How many numbers would you like to average? n”);
    scanf(” %d”, &howMany);
    pointsArray = (int * ) malloc(howMany * sizeof(int));
    printf(“Enter them boy! n”);
    for(i = 0; i

Question: Still Confuse with total+=pointsarray. how can all the numbers be store when the variable total is not set 0.0. i though you need to make that variable 0.0 so the total can store ever loop?

I’m not native english speaker and I’m wondering what does “tomato tomatoes” mean xd.

can anyone explain whats use of free(pointername);

So what’s the difference between creating an array from malloc and pointers to just doing pointsArray[howMany] ?

I started watching this video lessons on 1.5 video speed. And now, when I go back to normal, I understand how Bucky is speaking slowly. God damn dude, you are lazy.

Can you not do this without malloc but just declare int array[n] in stack after n has already acquired value from user input?
Thanks

i have a problem with my code, please can someone help me?
When I type number after the expression”” how many numbers do you want to put in?” and then I type the numbers, it always require me to type one more number. For example, i type 3 to say that I will type 3 numbers , but it ask me to type 4 numbers after the “put your numbers now” expression.
However, the output of total and average is correct, which is the total of first 3 numbers and the average of the first 3 numbers that I typed in.

here is my code.

#include
#include
#include
#include
#include

int main()
{
int i,howMany;
int *num;
int total=0;
float average=0.0;

printf(“how many numbers do you want to put in?n”);
scanf(” %d”,&howMany);

num=(int*)malloc(howMany*sizeof(int));

printf(“put your numbers nown”);
for(i=0;i

Buddy i don’t see where you done wrong but practically the average of the numbers you gave in run is 40.7% 😛 
So the program has done a mistake 😛 
Anyway cool videos you got here bro! 🙂 Impressed! (Y)

I know this might be a stupid question but what is the difference between using your code and something like this:

int newArray[howMany];
int newTotal = 0;
float newAverage = 0.0;

for (i = 0; i < howMany; i++) { scanf("%d", &newArray[i]); newTotal += newArray[i]; } newAverage = (float)newTotal / howMany; printf("My way average is: %f", newAverage);

What is the difference between using malloc and not?    
    int howMany, i;

    scanf(“%d”, &howMany);

    int pointArray[howMany];

    pointArray[0] = 4;

    printf(“%d”, pointArray[0]);

Compared to

    int howMany, i;

    scanf(“%d”, &howMany);

    int pointArray = malloc(howMany * sizeof(int));

    pointArray[0] = 4;

    printf(“%d”, pointArray[0]);

These both function exactly the same on my end. Why use malloc?