💍 P5-11778

Author: jyh071116

💍 P5/11778.py

@@ -0,0 +1,28 @@
+n, m = map(int, input().split())
+p = 1000000007
+
+def gcd(a, b):
+  if a % b == 0: return b
+  return gcd(b, a%b)
+ 
+gcd_n_m = gcd(n, m)
+
+fibo = {}
+def fibonacci(n) :
+  if n == 0:
+    return 0
+  if n == 1 or n == 2:
+    fibo[n] = 1
+    return fibo[n]
+  if n in fibo:
+    return fibo[n]
+
+  if n & 1:
+    k = (n+1)//2
+    fibo[n] = (fibonacci(k)*fibonacci(k) + fibonacci(k-1) * fibonacci(k-1)) % p
+  else :
+    k = n//2
+    fibo[n] = (2*fibonacci(k-1) + fibonacci(k)) * fibonacci(k) % p
+
+  return fibo[n]
+print(fibonacci(gcd_n_m))