A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called

The following two functions P1 and P2 that share a variable B with an initial value of 2 execute concurrently.

P1( ) {
  C = B – 1;
  B = 2 * C;
}


P2( ) {
  D = 2 * B;
  B = D - 1;
}

The number of distinct values that B can possibly take after the execution is___________.

What is the output of the following C code? Assume that the address of x is 2000 (in decimal) and an integer requires four bytes of memory.

int main () { 
unsigned int x[4][3] = 
          {{1,2,3},{4,5,6},{7,8,9},{10,11,12}}; 
          printf(“%u, %u, %u”, x+3, *(x+3), *(x+2)+3); 
}

Consider the following pseudo code, where x and y are positive integers.

begin 
    q := 0 
    r := x 
   while r ≥ y do 
      begin 
      r := r - y 
      q := q + 1 
    end 
end

The post condition that needs to be satisfied after the program terminates is