Create ActivitySelection

other/activity_selection.py

@@ -0,0 +1,43 @@
+"""The following implementation assumes that the activities 
+are already sorted according to their finish time"""
+
+"""Prints a maximum set of activities that can be done by a 
+single person, one at a time"""
+# n --> Total number of activities 
+# start[]--> An array that contains start time of all activities 
+# finish[] --> An array that contains finish time of all activities 
+
+def printMaxActivities(start, finish):
+    """
+    >>> start = [1, 3, 0, 5, 8, 5] 
+    >>> finish = [2, 4, 6, 7, 9, 9] 
+    >>> printMaxActivities(start, finish)
+    The following activities are selected:
+    0 1 3 4 
+    """
+    n = len(finish) 
+    print("The following activities are selected:")
+
+    # The first activity is always selected 
+    i = 0
+    print(i, end=" ")
+
+    # Consider rest of the activities 
+    for j in range(n): 
+
+        # If this activity has start time greater than 
+        # or equal to the finish time of previously 
+        # selected activity, then select it 
+        if start[j] >= finish[i]: 
+            print(j, end=" ")
+            i = j 
+
+# Driver program to test above function 
+start = [1, 3, 0, 5, 8, 5] 
+finish = [2, 4, 6, 7, 9, 9] 
+printMaxActivities(start, finish) 
+
+"""
+The following activities are selected:
+0 1 3 4
+"""