added to two programs

elapsed_time.py

@@ -0,0 +1,17 @@
+#Measure The Elapsed Time 
+#importing time module
+import time
+#Records the current time
+start=time.time()
+'''
+The loop runs from 0 to 9 taking some time 
+in each iteration.
+'''
+for i in range(0,10):
+    print(i)
+#The execution is paused for 5 seconds
+time.sleep(5)
+#records the ending time 
+end=time.time()
+#Elapsed time= Start Time-End Time
+print(f'Elapsed Time :{end-start:.3f} seconds')

n_digit_random_number.py

@@ -0,0 +1,13 @@
+#A Function That Takes A Number 'n' And Then Returns A Randomly Generated Number Having 'n' Digits
+#importing Random Module 
+import random
+
+def gennum(n):
+    lbound=10**(n-1) #lower bound
+    ubound=(10**n)-1 #upper bound
+    return random.randint(lbound,ubound)
+
+#Taking Input From User
+n=int(input("Enter A Number:"))
+rnum=gennum(n)
+print("Random Number:", rnum)

type_enter.py

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+#Prompts The User To Type Some Sentence(s) Followd By 'enter'
+s=input("Enter Few Sentences:")
+l=len(s)
+c=0 #Count For Whitespaces
+alc=0 #Count For Alphanumeric Characters
+for ch in s :
+    if ch.isspace():
+        c+=1
+    elif ch.isalnum():
+        alc+=1
+'''
+Percentage Calculation For Occurence Of
+Alphanumeric Characters In The Sentence
+'''
+alnp=alc/l*100 
+print("Original Sentence:")
+print(s)
+print("Number Of Words:",(c+1))
+print("Number Of Character:",l)
+print("Alphanumeric Percentage:",alnp,"%")