How do I make structured array loop output what I want [closed] - c

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I'm trying to input a number in each structure but I keep getting numbers I didn't even input.
#include <stdio.h>
#include <stdlib.h>
struct reg {
int course_num;
};
int main() {
struct reg arr_reg[2];
int i;
for (i = 0; i < 2; i++) {
printf("Enter course number: ");
scanf("%d"), &arr_reg[i].course_num;
}
for (i = 0; i < 2; i++) {
printf("course number: %d\n ", arr_reg[i].course_num);
}
}

Answer 1

A simple fix, move the , &arr_reg[i].course_num into the parenthesis after the closing quotation mark. Check your IDE's error flags whenever they pop up.

Answer 2

Simple mistake ,change "scanf("%d"), &arr_reg[i].course_num;"
to "scanf("%d",&arr_reg[i].course_num);"
#include <stdio.h>
#include <stdlib.h>
struct reg{
int course_num;
};
int main()
{
struct reg arr_reg[2];
int i;
for(i = 0; i < 2; i++)
{
printf("Enter course number: ");
scanf("%d",&arr_reg[i].course_num);
}
for(i = 0; i < 2; i++)
{
printf("course number: %d\n ", arr_reg[i].course_num);
}
return 0;
}