#!/usr/bin/python3 from timeit import default_timer def main(): start = default_timer() sum_ = 0 for i in range(3, 1000): if i % 3 == 0 or i % 5 == 0: sum_ += i end = default_timer() print('Project Euler, Problem 1') print('Answer: {}'.format(sum_)) print('Elapsed time: {:.9f} seconds'.format(end - start)) if __name__ == '__main__': main()