diff --git a/src/random_number.py b/src/random_number.py
new file mode 100644
index 0000000..680372c
--- /dev/null
+++ b/src/random_number.py
@@ -0,0 +1,13 @@
+# Write a program that generates a random number.
+
+# Output:
+# The random number is: 4
+
+import random
+
+
+def randomInt(a: int, b: int) -> int:
+    return random.randint(a, b)
+
+
+print("The random number is: ", randomInt(1, 100))
diff --git a/src/verify.py b/src/verify.py
new file mode 100644
index 0000000..a1d7643
--- /dev/null
+++ b/src/verify.py
@@ -0,0 +1,15 @@
+# Write a software that verifies if a number is present in a pre-defined array.
+
+# Output example:
+# Insert number 3
+# The number 3 is [not] present in the array.
+
+
+Predefined_Array = [1, 5, 8, 12, 23, 30, 58, 72, 88]
+
+Num_To_Check = int(input("Insert number: "))
+
+if Num_To_Check in Predefined_Array:
+    print("The number", Num_To_Check, "is present in the array")
+else:
+    print("The number", Num_To_Check, "is not present in the array")