Robotics & Artificial Intelligence
A number is said to be 'Happy number' if eventual sum of the square of its digits results in 1. Write a Python code to input a number and check whether it is a Happy Number or not.
Sample Input: 31
Sample Output: 31 = 32 + 12 = 10 = 12 + 0 = 1
Hence, it is a Happy Number
Python Control Flow
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Answer
n = int(input("Enter a number: "))
p = n
while n > 9:
s = 0
while n > 0:
d = n % 10
s = s + d*d
n = n // 10
n = s
if n == 1:
print(p, "is a Happy Number")
else:
print(p, "is not a Happy Number")Output
Enter a number: 31
31 is a Happy Number
Enter a number: 12
12 is not a Happy Number
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