void recycle(int select)
{
	int ans;
	
	scanf_s("%d", &ans);

	if (ans == 1)
	{
		search(select);
	}
	else if (ans == 0)
	{
		system("cls");
		menu();
	}
	else
	{
		printf("Invalid Choice. Press enter to try again");
		system("pause");
		recycle(select);
	}
}

#include <stdio.h>

void recycle(int select)
{
	int ans;
	printf("\nEnter your selection (1 or 0):");
	scanf_s("%d", &ans);

	if (ans == 1)
	{
		printf("You typed in a one!\n");
		//search(select);
	}
	else if (ans == 0)
	{
		printf("You typed in a zero!\n");
		//menu();
	}
	else
	{
		printf("Invalid Choice. Press enter to try again");
		recycle(select);
	}
}

int main()
{
	int choice = 3;
	recycle(choice);
	return 0;
}

/*Welcome to the Grade Book program. Students
    grades will be read from file, and we will
    manipulate this info to get grades and scores
    for students. Enjoy!
        Written By: Brandon Matykunas
        Date: 7/18/2008*/

#include <stdio.h>
#include <search.h>
#include <stdlib.h>
#include <stddef.h>
#define FLUSH while(getchar() != '\n')
#include<iostream>
using namespace std;

void menu(); //Prints a nice looking menu Thanks to James Stam
void menuoption (int select, int* selectIn); //Pick a choice any choice.
int search (int select); //Hey lookee what I find
int compare (int *x, int *y) 
{   
   return (* x -*y); 
} 
int printscr (int select); //Print the scores about a given student
int printavg (int select); //Print the average of a given student
int printgrd (int select); //Print the letter grade of a given student
int printinfo (int select); //Print scores, average, and letter grade of a given student
int extprog (void); //Just made a special way to exit the program
void recycle (int select); //Want to look up another student, here's how
void scores (int studentnumber, int sdata[][6]); //This is how we print the scores for the student we find
void average (int studentnumber, int sdata[][6]); //This is how we print the average for the student we find
void grade (int studentnumber, int sdata[][6]); //This is how we print the letter grade for the student we find
void allinfo(int studentnumber, int sdata[][6]); //This is how we print all the info we find for a student

//Call main
int main (void)
{
    int select, selectIn;
    
    menuoption (select, &selectIn); //Surprisingly this is all main has to do. What a slacker

    return 0;

}//End main

//Once again, thanks James for the good looking menu. I made a few changes though, but I kept the output formatting
void menu (void)
{
    printf("\t\t\tWelcome to Grade Book V1.0.\n\t\tPlease tell me what we're going to do today?\n\n");
    printf("\t\t---------------------------------------------\n");
    printf("\t\t|     1:Print A Students Scores             |\n");
    printf("\t\t|     2:Print A Students Average            |\n");
    printf("\t\t|     3:Print A Students Letter Grade       |\n");
    printf("\t\t|     4:Look up a Students info             |\n");
    printf("\t\t|     5:Quit                                |\n");
    printf("\t\t---------------------------------------------\n");

    return;
}//End menu
//Once again James gets credit for building menu options, however I've made some improvements I'll point out
void menuoption (int select, int* selectIn)
{
    do
    {
        menu();
        printf("Please choose option 1-5:\n");
cin>>select;


        switch(select)
        {
            case 1: *selectIn = printscr(select);
                break;
            case 2: *selectIn = printavg(select);
                break;
            case 3: *selectIn = printgrd(select);
                break;
            case 4: *selectIn = printinfo(select);
                break;
            case 5: *selectIn = extprog(); //Yes I actually built a function on how to kill my program
                break;
            default: FLUSH; 
                system("cls"); //You're going to notice a lot of this command to clear the screen
                printf("\aNot recognized. Please try again.\n");
                *selectIn = 1; //Now I've wiped the screen and let you start over, there only seems to be a glitch when it comes to
                //letters though
        }
    }
    while(*selectIn);
}//End choose option

//Now comes the fun part, searching an array
int search (int select)
{
//I decided to just hardcode my values into the array, because I could never seem to get the sprintf command to work right
    int sdata[15][6] = 
    {
        {1234, 52, 7, 100, 78, 34},
        {1947, 45, 40, 88, 78, 55},
        {2134, 90, 36, 90, 77, 30},
        {2877, 55, 50, 99, 78, 80},
        {3124, 100, 45, 20, 90, 70},
        {3189, 22, 70, 100, 78, 77},
        {4532, 11, 17, 81, 32, 77},
        {4602, 89, 50, 91, 78, 60},
        {5405, 11, 11, 0, 78, 10},
        {5678, 20, 12, 45, 78, 34},
        {6134, 34, 80, 55, 78, 45},
        {6999, 0, 98, 89, 78, 20},
        {7874, 60, 100, 56, 78, 78},
        {8026, 70, 10, 66, 78, 56},
        {9893, 34, 9, 77, 78, 20}
    };
   size_t elems = 90; //15*6 we have 90 values to search in this array
   int studentnumber; 
   int *find; 

   system("cls"); //Again I've cleared the screen so you can see what you're actually doing
   printf("Please enter a Student Number for more info: ");
   cin>> studentnumber;

//You will notice this is not your average search, this is a lateral search, maybe not as fast but luckily this is a small array
   find = (int *)_lfind (& studentnumber, &sdata, &elems, 
         sizeof (int), 
         (int(*) (const void *, 
         const void *)) compare); 
   if (find) //If the item is found we'll do one of these for things depending on the menuoption you selected before
   {
      printf ("\nStudent %d found Please verify the results.\n\n", 
      studentnumber); 
      if (select == 1) //this comes from selecting Print a students Scores
          scores(studentnumber, sdata);
      else if (select == 2) // this comes from selecting Print a Students Average
          average(studentnumber, sdata);
      else if (select == 3) // this comes from selecting Print a Students Letter Grade
          grade(studentnumber, sdata);
      else if (select == 4) // this comes from selecting Look up a Students info
          allinfo(studentnumber, sdata);
   }
   else //If we don't find the student you're looking for we'll ask again. Just be careful because you can look up a grade
   {
      printf ("Could not find student %d. Press enter to try again.\n", studentnumber); 
      system("pause");
      search(select);
   }
   return 1;
}//Done searching

//This will only print the students scores and is a result of selecting option 1
int printscr (int select)
{
    search(select); //Called the search function
    
    while(select !=0)//let's see if adding a while loop will help
    {
    recycle(select);
                 } //This will let you look up another student
    system("pause");
    system("cls");
    return 1;
}
int printavg (int select)
{
    search(select);
    
    while(select !=0)//while loop 
    {
    recycle(select);
                 }
    system("pause");
    system("cls");
    return 1;
}
int printgrd (int select)
{
    search(select);
   
    while(select !=0)// while loop 
    {
    recycle(select);
                 }
    system("pause");
    system("cls");
    return 1;
}
int printinfo (int select)
{
    search(select);
 
    while(select !=0)//while loop 
    {
    recycle(select);
                 }
    system("pause");
    system("cls");
    return 1;
}
int extprog (void)
{
    int ans;

    system("cls");

    printf("Are you sure you want to quit? 0 to quit, 1 to return to main menu.\n");
 cin>>ans;

    if (ans == 0)
    {
        return 0;
    }
    else if (ans == 1)
    {
        system("cls");
        return 1;
    }
    else if (ans != 1 || 0)
    {
        printf("Sorry Invalid choice. Press Enter to try again.\n");
        system("pause");
        system("cls");
        extprog();
    }
    return 1;
}
void recycle(int select)
{
    int ans;
    //ask if they want to look up another student 

    printf("\n\n");
    printf("Would you like to look up another student?\n1 to look up another student, 0 to return to the main menu.\n");
           
   cin>>ans;

    if (ans == 1)
    {
        search(select);
    }
    else if (ans == 0)
    {
        system("cls");
        menu();
    }
    else
    {
        printf("Invalid Choice. Press enter to try again.\n");
        system("pause");
        recycle(select);
    }
}
void scores (int studentnumber, int sdata[][6])
{
    int studentID = studentnumber;

    for (int i = 0; i < 15; i++)
    {
        if (studentID == sdata[i][0])
        {
            printf("\tQuiz 1 Quiz 2 Quiz 3 Quiz 4 Quiz 5");
            printf("\n");
            printf("\t");
            for (int j = 1; j < 6; j++)
            {
                printf("%d\t", sdata[i][j]);
            }
        }
    }
}
void average (int studentnumber, int sdata[][6])
{
    int studentID = studentnumber;
    int sum = 0, avg = 0;

    for (int i = 0; i < 15; i++)
    {
        if (studentID == sdata[i][0])
        {
            for (int j = 1; j < 6; j++)
            {
                sum += sdata[i][j];
            }
            avg = sum/5;
            printf("\n\nAverage: %d\n\n", avg);
        }
    }
}
void grade (int studentnumber, int sdata[][6])
{
    int studentID = studentnumber;
    int sum = 0, avg = 0;
    char Grade;
    
    for (int i = 0; i < 15; i++)
    {
        if (studentID == sdata[i][0])
        {
            for (int j = 1; j < 6; j++)
            {
                sum += sdata[i][j];
            }
            avg = sum/5;

            if (avg >= 90)
                Grade = 'A';
            else if (avg >= 80)
                Grade = 'B';
            else if (avg >= 70)
                Grade = 'C';
            else if (avg >= 60)
                Grade = 'D';
            else
                Grade = 'F';
            printf("Your Grade in this class is: %c\n", Grade);
        }
    }
}
void allinfo(int studentnumber, int sdata[][6])
{
    int studentID = studentnumber;
    int sum = 0, avg = 0;
    char Grade;
    
    for (int i = 0; i < 15; i++)
    {
        if (studentID == sdata[i][0])
        {
            printf("\tQuiz 1 Quiz 2 Quiz 3 Quiz 4 Quiz 5");
            printf("\n");
            printf("\t");
            for (int j = 1; j < 6; j++)
            {
                sum += sdata[i][j];
                printf("%d\t", sdata[i][j]);
            }
            avg = sum/5;
            printf("\n\nAverage: %d\n\n", avg);

            if (avg >= 90)
                Grade = 'A';
            else if (avg >= 80)
                Grade = 'B';
            else if (avg >= 70)
                Grade = 'C';
            else if (avg >= 60)
                Grade = 'D';
            else
                Grade = 'F';
            printf("Your Grade in this class is: %c\n", Grade);
        }
    }
}