auto save

dyhcv.py

+bingo_num = 20
+num_list = [1,3,5,8,11,15,17,19,20,21]
+low = 0
+high = len(num_list)-1
+
+while low <=high:
+    mid = (low+high) // 2
+    guess_num = num_list[mid] 
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