Create day 03 solution in python

Author: kr-viku

Week_1_Day_03.py

@@ -0,0 +1,6 @@
+class Solution:
+    def twoCitySchedCost(self, costs: List[List[int]]) -> int:
+        fcity = [i for i,j in costs]
+        Diff = [j - i for i,j in costs]
+        return sum(fcity) + sum(sorted(Diff)[:len(costs)//2])
+