#include <stdio.h>
#include <stdlib.h>
 
int main(int argc, char *argv[])
{
  menu();
  system("PAUSE");	
  return 0;
}
 
int menu()
{
    system("cls"); 
 
    printf("%sn","Vyber:");
    printf("%sn","1. FUNKCE1");
    printf("%sn","2. FUNKCE2");
    printf("%sn","3. Konec");
 
 
    int i = 0;
    printf("%s ","Zadej číslo volby: ");
    scanf("%d",&i);
    while(i < 1 || i > 3)
    {
           printf("%s ","Zadej znovu číslo volby: ");
           scanf("%d",&i);
    }
 
    switch(i)
    {
     case 1: funkce1(); break;         
     case 2: funkce2(); break;
     case 3: 
          system("cls");
          printf("%sn","Sbohem"); 
          break;  
    }
}
 
int funkce1()
{
   system("cls");
   printf("%sn","Volas funkci 1:");  
   int i;
   printf("%s ","Napis 1 nebo 0 a zmackni enter: ");
   scanf("%d",&i); 
 
   menu();  
}
 
 
int funkce2()
{
   system("cls");
   printf("%sn","Volas funkci 2:");  
   int i;
   printf("%s ","Napis cislo a zmackni enter: ");
   scanf("%d",&i); 
 
   menu();  
}