save project

diy1.py

-list1 = []
-import time
-start_time=time.time()
-
-for a in range(0, 1001):
-    for b in range(0, 1001):
-        list1.append(0)
-end_time=time.time()
-
-print(end_time-start_time)
-list1.insert(0, 0)
\ No newline at end of file
+alist=[20,17,9,13,8,6]
+long=len(alist)
+for i in range(0,long-1):
+    for j in range(0,long-1):
+        if alist[j]<alist[j+1]:
+            alist[j],alist[j+1]=alist[j+1],alist[j]
+print(alist)
\ No newline at end of file