dongr0510/brute_force.py

## brute_force.py
for each number 'i'
  create a new set which INCLUDES number 'i' if it does not exceed 'S', and recursively
     process the remaining numbers
  create a new set WITHOUT number 'i', and recursively process the remaining numbers
return true if any of the above two sets has a sum equal to 'S', otherwise return false
	for each number 'i'
	create a new set which INCLUDES number 'i' if it does not exceed 'S', and recursively
	process the remaining numbers
	create a new set WITHOUT number 'i', and recursively process the remaining numbers
	return true if any of the above two sets has a sum equal to 'S', otherwise return false