Solutions for hackerrank problems python

Author: adityajai25

OTHERS/Hackerrank/exception.py

@@ -0,0 +1,12 @@
+list_a = [1,2,3,4,5]
+
+try:
+    index = int(input("Enter the index: "))
+    
+    try:
+        print(list_a[index])     
+    except IndexError:
+        print("The index {} is incorrect and index should lie between -5 and 4".format(index))
+
+except ValueError:
+    print("Use an integer as an input") 

OTHERS/Hackerrank/frozensets.py

@@ -0,0 +1,16 @@
+set1 = {'A','B','C','D'}
+set2 = {'A',2,'C',4}
+frozen_set_1 = frozenset(set1)
+frozen_set_2 = frozenset(set2)
+
+frozenset_union = frozen_set_1.union(frozen_set_2)
+frozenset_common = frozen_set_1.intersection(frozen_set_2)
+frozenset_difference = frozen_set_1.difference(frozen_set_2)
+frozenset_distinct = frozen_set_1.symmetric_difference(frozen_set_2)
+
+print("frozen_set_1:",frozen_set_1)
+print("frozen_set_2:",frozen_set_2)
+print("frozenset_union:",frozenset_union)
+print("frozenset_common:",frozenset_common)
+print("frozenset_difference:",frozenset_difference)
+print("frozenset_distinct:",frozenset_distinct)

OTHERS/Hackerrank/immutable.py

@@ -0,0 +1,11 @@
+tuple1 = (1,2,3,4,5,6,7,8,9,10)
+
+tuple1[5] = 100
+
+print(tuple1)
+
+# Tuples are immutable because the tuple object doesnot support assignment of any elements to any particular index
+# inorder to change the value of a particular index we need to create a new tuple object and assign it to the old tuple object
+
+# Immutable is a property of an object that cannot be changed once it is created. to change the value of a particular index we need to reassign the tuple to same tuple object. 
+# Immutable objects include sets and tuples. 

OTHERS/Hackerrank/list-removal.py

@@ -0,0 +1,5 @@
+list_a = ["car", "place", "tree", "under", "grass", "price"] 
+
+remove_items_containing_a_or_A = lambda list_1 : [item for item in list_1 if "a" not in item.lower()]
+
+print(remove_items_containing_a_or_A(list_a))

OTHERS/Hackerrank/pattern.py

@@ -0,0 +1,14 @@
+user_input = int(input("Enter a number of your choice : "))
+
+if(user_input == 1):
+    for i in range(5,0,-1):
+        print("*"*i)
+
+elif(user_input == 2):
+    for i in range(5,0,-1):
+        print("*"*i)
+    for j in range(2,6):
+        print("-"*j)
+
+else:
+    print("Invalid input")

OTHERS/Hackerrank/sequence.py

@@ -0,0 +1,6 @@
+A = [1,2,3,4,5,6]
+
+for element in A:
+    print(element**2)
+else:
+    print("The sequence has ended")

OTHERS/Hackerrank/tempCodeRunnerFile.py

@@ -0,0 +1,5 @@
+list_a = ["car", "place", "tree", "under", "grass", "price"] 
+
+remove_items_containing_a_or_A = lambda list_1 : [item for item in list_1 if "a" not in item.lower()]
+
+print(remove_items_containing_a_or_A(list_a))

OTHERS/Hackerrank/tuples.py

@@ -0,0 +1,10 @@
+t_1 = (1,4,9,16,25,36)
+
+t_modified = tuple(i**2 for i in t_1)
+
+print("t_modified:",t_modified)
+
+print("Element at index postion 4 of t_modified:",t_modified[4])
+
+t_sliced = t_modified[1:4]
+print("t_sliced:",t_sliced)