#include <stdio.h>
#include <stdarg.h>


// Source: https://www.tutorialspoint.com/cprogramming/c_variable_arguments.htm
double average(int num, ...) {

   va_list valist;
   double sum = 0.0;
   int i;

   /* initialize valist for num number of arguments */
   va_start(valist, num);

   /* access all the arguments assigned to valist */
   for (i = 0; i < num; i++) {
      sum += va_arg(valist, int);
   }
	
   /* clean memory reserved for valist */
   va_end(valist);

   return sum/num;
}


struct a_t{
};


int a(const struct a_t *param){
    printf("A\n");
    return 1;
}

int b(int *count){
    // count == 0x100
    (*count)++;
    printf("b\n");
    return 1;
}


int main(int argc, int **argv){
    // Calculated left to right
    // + / * -
    //  condition ? true-statement: false-statement
    // == != > < <= >=

    // Calculated right to left
    // = 
    // See table: https://www.tutorialspoint.com/cprogramming/c_operators_precedence.htm

    //             V
    // obj   count  int  int  int
    // 0x100 0x100 0000 0000 0000 0000

    // int arr[10];
    // type(((double *) arr)+1) == int *
    // int i = 0;
    // int j = 0;
    // // 0 + 0
    // int *obj = &i; // Assume 0x100
    // b(obj);
    // printf("%d", /* CENCORED  */);
    printf("%c ", 'p' + 'z' - 'w');
}

// 001010011
// 010101001
// 011111010


// a = 0100
// b = 1110
// a2= 1010

// data = 0101011101010100101010
// mask = 1111111111111111111111
// mask = 1111111111111111111111
//        0101011101010100101010

// enctypted = data^mask
// decrypted = encrypted^mask

// a ^= b ^= a ^= b
// a_xor_b = a ^ b 
// b_new = b ^ a_xor_b // Actually a
// a_new = a_xor_b ^ b_new // a_xor_b ^ a // Actually b

// c = 10 a = 15 b = 5 
        // -> a = 14 b = 6 c = 14/5 == 2 -> c = 3
// c = 3 a = 14 b = 6 
            // -> 

// 3 = 011
// 6 = 110
//     010 == 2

// 6 = 0110
// 8 = 1000
//     0000

// 3    = 00000011
// 3<<3 = 00011000