[HELP] segmentation fault (core dumped) error

[klamor]

Hey everyone, I was wondering if someone could take a look at my program and see if they can figure out why i'm getting this error during runtime. I believe the error is thrown because i'm accessing an illegal memory location (ie. doesn't exist), but I can't seem to find where. If anyone has any suggestions, they would be greatly appreciated.

#include<stdio.h>
void read (int[20]);
void print (int[20]);

int main(void){
    int numbers[20];
    read(numbers);
    print(numbers);

return 0;
}

void read (int numbers[20]){        //Reads input and saves to an array
    int num, j;    
    printf("Please enter 20 numbers between 10 and 100.\n");
    for (j =0; j<20; j++){
        scanf("%d", num);
        numbers[j] = num;
    }
}

void print (int numbers[20]){        //Prints the numbers of the array as long as they aren't
    int j, n, flag =0;                      //of previous numbers.
    for(j =0; j<20; j++){
        if(j>0){
            for(n =j; n>0; n--){
                if(numbers[j]==numbers[n])
                    flag=1;
            }
        }
        if (flag==0)
            printf("%d, ", numbers[j]);
        flag = 0;
    }
}

[giggling]

You are passing 'num' to scanf instead of '&num'