okay so like case 2 and 3 is not working, also the program is still not finish but why isn't case 2 and 3 not functioning well on the switch part? case 1 works just fine :/ please help!!!
Code:
#include<stdio.h>
main ()
{
     //passcode part (passcode is 1234)
     int passcode, choice, choice1;
     char letter;
     
     system("color 49");
     
     printf("\n\n\n\n\n\t\t      The passcode is a 4 - digit number.");
     printf("\n\n\n\n\n\n\t\t\tEnter the PASSCODE >>> ");
     scanf("%d", &passcode);
     while(passcode != 1234)
     {
             system("cls");    
             printf("\n\n\n\n\n\t\tYou entered the wrong passcode! Please try again.");
             printf("\n\n\n\n\n\n\t\t\tEnter the PASSCODE >>> ");
             scanf("%d", &passcode);
     }
     system("cls");   
     printf("\n\n\n\n\n\n\t      Congratulations, you have entered the right passcode.");
     printf("  \n\n\n\n\n\tDo you still want to continue? Type [1] for yes and [2] for no >>> ");
     scanf("%d", &choice);
     if(choice == 1)
     {
               system("cls");
               //da menu lol
               printf("\n----------------------------------------------------------------------------");
               printf("----------------------------------------------------------------------------");
               printf("----------------------------------------------------------------------------------------");
               
               printf("\t\t    ****************************************");
               
               printf("\n\n\t\t      HEALTY FITNESS PROGRAM w/ MATH v.12");
               printf("\n\n\t\t\t1. Information");
               printf("\n\n\t\t\t2. Statistics");
               printf("\n\n\t\t\t3. About the Creators");
               printf("\n\n\t\t\t4. Fun, Special and Interesting!");
               printf("\n\n\t\t\t5. Exit");
               
               
               printf("\n\n----------------------------------------------------------------------------");
               printf("----------------------------------------------------------------------------");
               printf("----------------------------------------------------------------------------------------");
               
               printf("\n\t\t\t   Select a number >>> ");
               scanf("%d", &choice1);
               switch(choice1)
               {
                               case 1:
                                     system("cls");
                                     printf("\n----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------------------");
                                     
                                     printf("\n\t-+INFORMATION ABOUT THE PROGRAM");
                                     printf("\n\nThis program is simply an array of statistical tools that calculates the set of values which is the health data of a student.");
                                     printf("\n\n\t-+STATISTICAL TOOLS");
                                     printf("\n\nThis program offers solving the mean, median, mode, range, standard deviation and percentiles of a health data of a student.");
                                     printf("\n\n\t-+STATISTICS");
                                     printf("\n\nThis is where all the calculations take place, the main purpose of the program.");
                                     printf("\n\n\t-+ABOUT THE CREATORS");
                                     printf("\n\nThis is where all the details on the creators of the program are placed, check \nit out!");
                                     printf("\n\n\t-+FUN, SPECIAL AND INTERESTING!");
                                     printf("\n\nThis is an extra part of the program, can burn your boredom to ashes thats why \nit has an exclamation mark on it.");
                                     
                                     printf("\n\n----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------------------");
                                     
                                     printf("\n\t\t Wanna go back? Type [Y] for yes or [N] for no. >>> ");
                                     scanf("%s", &letter); 
                                       if(letter == 'y' || letter == 'Y') 
                                        main (); 
                                     else 
                                     system("cls");  
                                     printf("\n\n\n\n\n\n\t     The program will now terminate... Thank you for using!\n\n\n\n\t\t\t  Press any key now to close!");
                                     break;
                               case 2:
                                     printf("\n----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------------------");
                                     printf("\n\t-+INFORMATION ABOUT THE PROGRAM");
                                     printf("\n\nThis program is simply an array of statistical tools that calculates the set of values which is the health data of a student.");
                                     break;
                               case 3:
                                     printf("\n----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------");
                                     printf("----------------------------------------------------------------------------------------");
                                     printf("\n\nThis program is simply an array of statistical tools that calculates the set of values which is the health data of a student.");
                                     break;
               }                                                                                                            
     }
     else
     {
               system("cls");
               printf("\n\n\n\n\n\n\t     The program will now terminate... Thank you for using!\n\n\n\n\t\t\t  Press any key now to close!");
               getch();
     }
     
     
     
     
}