save project

ZHU.py

+def zhu(zhu_):
+    if zhu_==1:
+        return 1
+    if zhu_==2:
+        return 1
+    zhu1=zhu(zhu_-2)+zhu(zhu_-1)
+    return zhu1 
+i=1
+while(zhu(i)<=20):
+    i+=1
+print(i)
\ No newline at end of file