save project

8271c181 · BellCodeEditor · 2eee4334 · 8271c181
Commit 8271c181 authored Dec 12, 2020 by BellCodeEditor
Showing with 17 additions and 0 deletions
1.py
--- a/1.py
+++ b/1.py
+def A(a):
+    if a <= 2:
+        return 1
+    else:
+        n=A(a-1)+A(a-2)
+        return n
+
+s=A(20)
+i=1
+while True:
+   i+=1
+   a=A(i)
+   if a>20 :
+       print(i)
+       break 
+print(s)
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