refactor: Do fizzbuzz with 1 if statement

Author: Jin Seong Kwan

fibo.py

@@ -1,9 +1,19 @@
+from math import sqrt
+
 
 def fibo(num):
+    """
+    fibonacci sequence를 구하는 함수 입니다.
+    """
+    # 점화식 코드
+    #if num < 2:
+    #    return num
+    #else:
+    #    return fibo(num-1) + fibo(num-2)
 
-    if num<2:
-        return num
-    else:
-        return fibo(num-1) + fibo(num-2)
+    phi = (1 + sqrt(5)) / 2
+    phi2 = (1 - sqrt(5)) / 2
+    return round(pow(phi, num) - pow(phi2, num) / sqrt(5))
 
 print(fibo(5))
+

fizzbuzz.py

@@ -1,10 +1,6 @@
 
 for i in range(1,15+1):
-    if i % 15 == 0:
-        print('fizzbuzz')
-    if i % 3 == 0:
-        print('fizz')
-    elif i % 5 == 0:
-        print('buzz')
+    if i % 3 == 0 or i % 5 == 0 :
+        print('fizz'*(i % 3==0)+ 'buzz' *(i % 5 ==0))
     else:
         print(i)