reorganize dir

Signed-off-by: Mia Steinkirch <mia.steinkirch@gmail.com>

other_resources/Project-Euler/006-sum_square_diff.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python3
+# mari von steinkirch @2013
+# steinkirch at gmail
+
+   
+def sum_square_diff(n):
+    sq_sum, sum_sq = 0, 0
+    for i in range(1, n+1):
+        sum_sq += i**2
+        sq_sum += i
+    sq_sum = sq_sum **2
+    return sq_sum - sum_sq
+
+def main():
+    assert(sum_square_diff(10) == 2640)
+    print(sum_square_diff(100))
+    print('Tests Passed!')
+                   
+if __name__ == '__main__':
+    main()
+