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#include <stdio.h>
int joe (int mama, int cookies);
 
int couch (int potato);
int main(void) {
	int mama = 0;
	int cookies = 0;
	printf("Enter number: ");
	scanf("%d", &mama);
	joe(mama);
	printf("Your mom made %d cookies", cookies);
	return 0;
}
int joe (int mama) {
	if (mama >=10) {
		cookies = 12;
		}
	if (mama <10) {
		cookies = 18;
	}
}

prog.c: In function ‘main’:
prog.c:10:2: error: too few arguments to function ‘joe’
  joe(mama);
  ^~~
prog.c:2:5: note: declared here
 int joe (int mama, int cookies);
     ^~~
prog.c: At top level:
prog.c:14:5: error: conflicting types for ‘joe’
 int joe (int mama) {
     ^~~
prog.c:2:5: note: previous declaration of ‘joe’ was here
 int joe (int mama, int cookies);
     ^~~
prog.c: In function ‘joe’:
prog.c:16:3: error: ‘cookies’ undeclared (first use in this function)
   cookies = 12;
   ^~~~~~~
prog.c:16:3: note: each undeclared identifier is reported only once for each function it appears in
prog.c: In function ‘main’:
prog.c:9:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &mama);
  ^~~~~~~~~~~~~~~~~~
prog.c: In function ‘joe’:
prog.c:21:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Standard output is empty