solution to euler project problem 01

project_euler/problem_01/sol6.py

@@ -0,0 +1,24 @@
+'''
+Problem Statement:
+If we list all the natural numbers below 10 that are multiples of 3 or 5,
+we get 3,5,6 and 9. The sum of these multiples is 23.
+Find the sum of all the multiples of 3 or 5 below N.
+'''
+from __future__ import print_function
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
+
+'''store  multiples of 3 and 5 in a set and then add''' 
+n = int(input().strip())
+l = set()
+x = 3
+y = 5
+while(x<n):
+    l.add(x)
+    x+=3
+while(y<n):
+    l.add(y)
+    y+=5
+print(sum(l))