Answer Posted / faykarta

I'm nearly 100% sure that the only way to do this without
allocating more space is to loop through the entire array
checking elements against each other. Because its an
iterative method it can be optimised for linear memory access.

consider:

for(i = 0; i < N; ++i)
{
for(j = i + 1; j < N; ++j)
{
if(array[i] == array[j])
{
//index look up avoided through compiler optimisation???
return true;
}
}
}
return false;

*(Cache Integrity)The optimisation could be made using
pointer arithmetic or iterator style traversal in C/C++ anyway.

You could perform a custom sort operation that throws out
but i think it will be about the same algorithmic complexity
with less linear memory access and more complex code....

consider: (havent tested this one)

for(i = 0; i < N; ++i)
{
j = array[i] - 1;
while(j != i)
{
//check
if(array[i] == array[j])
{
return true;
}
//swap
array[i] ^= array[j] ^= array[i] ^= array[j];
j = array[i] - 1;
}
}
return false;

Any thoughts on these?
I would stick with brute force method.

#include int main(void) { int a=4, b=2; a=b<>2 ; printf("%d",a); return 0; }

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A program that will create a movie seat reservation. The program will display the summary seats and its status. The user will be ask what seat no. to be reserved, then it will go back again to the summary to display the updated seat status. If the seat no. is already reserved then it will prompt an error message. And also if the input seat no is out of range then it will also prompt an error message. The program is continuously running. Termination of the program will depends on how the programmer will apply. Sample output: Movie Seats Reservation Summary of Seats: Seat 1: Available Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 6 The Seat no. is out of range! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 The Seat no. is already reserved! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 0 GoodBye... Thank You!!!

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