Program (in C) doesn't start function, and it just simply ends - c

Question

After running the next code, in the function get_data(), everything runs normally until I get to the end of the For, when program should call the function continue_function() but in somehow, ignores it, and the program just ends.
Am I calling it in a wrong way?
I'm just start learning programming in C and this is one of the last exam's exercises.
#include <stdio.h>
#define MAX 100
#define YES 1
#define NO 0
struct record
{
char fname[15+1];
char lname[20+1];
char phone[9+1];
long income;
int month;
int day;
int year;
};
struct record list[MAX];
int last_entry = 0;
void get_data(void);
void display_report(void);
int continue_function(void);
void clear_kb(void);
main()
{
int cont = YES;
int ch;
while(cont == YES)
{
printf("\n");
printf("\n MENU");
printf("\n =========\n");
printf("\n1. Enter Names");
printf("\n2. Print Report");
printf("\n3. Quit");
printf("\n\nEnter Selection ==> ");
scanf("%d", &ch);
clear_kb();
system("cls");
switch(ch)
{
case 1: get_data();
break;
case 2: display_report();
break;
case 3: printf("\n\nThank You for using this Program!");
cont = NO;
break;
default: printf("\n\nInvalid Choice, Please Select 1 to 3!");
break;
}
}
}
void get_data(void)
{
int cont;
int ctr;
for(cont = YES; last_entry < MAX && cont == YES; last_entry++)
{
printf("\n\nEnter information for Person %d.", last_entry+1);
printf("\n\nEnter first name: ");
gets(list[last_entry].fname);
printf("Enter last name: ");
gets(list[last_entry].lname);
printf("Enter phone in 123-4567 format: ");
gets(list[last_entry].phone);
printf("Enter Yearly Income: ");
scanf("%ld", &list[last_entry].income);
printf("Enter Birthday: ");
do
{
printf("\n\tMonth (0 - 12): ");
scanf("%d", &list[last_entry].month);
}
while (list[last_entry].month < 0 || list[last_entry].month > 12);
do
{
printf("\tDay (0 - 31): ");
scanf("%d", &list[last_entry].day);
}
while (list[last_entry].day < 0 || list[last_entry].day > 31);
do
{
printf("\tYear (1800 - 2025): ");
scanf("%d", list[last_entry].year);
}
while (list[last_entry].year < 1800 || list[last_entry].year > 2025);
cont = continue_function();
}
if(last_entry == MAX)
{
printf("\n\nMaximum Number of Names has been entered!\n");
}
}
void display_report(void)
{
long month_total = 0, grand_total = 0;
int x, y;
fprintf(stdout, "\n\n");
fprintf(stdout, "\n REPORT");
fprintf(stdout, "\n ========");
for(x = 0; x <= 12; x++)
{
month_total = 0;
for(y = 0; y < last_entry; y++)
{
if(list[y].month == x)
{
fprintf(stdout, "\n\t%s %s %s %ld", list[y].fname, list[y].lname, list[y].phone, list[y].income);
month_total += list[y].income;
}
}
fprintf(stdout, "\nTotal for month %d is %ld:", x, month_total);
grand_total += month_total;
}
fprintf(stdout, "\n\nReport Totals:");
fprintf(stdout, "\nTotal Income is %ld", grand_total);
fprintf(stdout, "\nAverage Income is %ld", grand_total/last_entry);
fprintf(stdout, "\n\n* * * End of Report * * *");
}
int continue_function(void)
{
char ch;
printf("\n\nDo you wish to continue? (Y)es/(N)o: ");
getc(ch);
while(ch != 'n' && ch != 'N' && ch != 'y' && ch != 'Y')
{
printf("\n%c is invalid!", ch);
printf("\n\nPlease enter \'N\' to Quit or \'Y\' to Continue: ");
getc(ch);
}
clear_kb();
if(ch == 'n' || ch == 'N')
{
system("cls");
return(NO);
}
else
{
system("cls");
return(YES);
}
}
void clear_kb(void)
{
char junk[80];
gets(junk);
}

Answer 1

You're not using your get functions properly:
https://www.tutorialspoint.com/c_standard_library/c_function_getc.htm
int getc(FILE *); for instance requires a FILE* as argument and returns the character, but you are passing the character as argument, it should look like ch = getc(stdin);.
On another note, notice that when you use scanf you pass &c? This is because for a value to be modified, you need to pass the address where it's stored (&) and not the value itself. So even if getc took a char, it would have to be getc(&ch).
You should follow a quick tutorial on pointers and types, if you come from a higher level language or if you're new that could be a good idea.