Answer:
zero = one = two = three = four = five = six = seven = eight = nine = 0
while True:
number = int(input("Enter a number: "))
if number == -1:
break
elif 0 <= number <= 9:
if number == 0:
zero += 1
elif number == 1:
one += 1
elif number == 2:
two += 1
elif number == 3:
three += 1
elif number == 4:
four += 1
elif number == 5:
five += 1
elif number == 6:
six += 1
elif number == 7:
seven += 1
elif number == 8:
eight += 1
elif number == 9:
nine += 1
else:
print("Invalid input!")
print("0 -> " + str(zero) + "," + " 1 -> " + str(one) + "," + " 2 -> " + str(two) + "," + " 3 -> " + str(three))
print("4 -> " + str(four) + "," + " 5 -> " + str(five) + "," + " 6 -> " + str(six) + "," + " 7 -> " + str(seven))
print("8 -> " + str(eight) + "," + " 9 -> " + str(nine))
Explanation:
Initialize the variables to hold the count for each digit
Initialize a while loop that iterates until a specified condition is reached
Inside the loop:
Get a number from the user and check
If the number is -1, stop the loop
If it is between 0 to 9, increase corresponding count value by 1
If it is out of range, print an error message
When the loop is done, print each count variable
