Create sum67.py

Author: TudorMurariu

List-2/sum67.py

@@ -0,0 +1,17 @@
+def sum67(nums):
+    n = len(nums)
+    if n == 0:
+        return 0
+    sum = 0
+    ok = 0
+    for i in range(n):
+        if nums[i] == 6:
+            ok = 1
+            continue
+        elif ok == 1 and nums[i] == 7:
+            ok = 0
+            continue
+        elif ok == 1:
+            continue
+        sum += nums[i]
+    return sum