Merge pull request #177 from dhanushrajvr/add-happy-number

Add Happy Number

Author: steam-bell-92

math/Happy-Number/Happy-Number.py

@@ -0,0 +1,15 @@
+print("🔢 Happy Number Checker 🔢")
+print("🎯 A happy number is a number which eventually reaches 1 when replaced repeatedly by the sum of the square of its digits.\n")
+
+N = int(input("➡️  Enter a number: "))
+
+seen = set()
+num = N
+while num != 1 and num not in seen:
+    seen.add(num)
+    num = sum((int(digit) ** 2) for digit in str(num))
+
+if (num == 1):
+    print(f"🔍 {N} is a happy number! ✅")
+else:
+    print(f"🔍 {N} is not a happy number. ❌")