Binary Search Using Python and awk

Find the corresponding region code based on the IP address,

The format of the search text content is as follows:

Iparea 22165248 22165503 cn6109
Iparea 22165504 22347775 cn6100
Iparea 22347776 22413311 cn6101
Iparea 22413312 22544383 cn6100
Iparea 22544384 23068671 cn1102
Iparea 24379392 24641535 cn0000
Iparea 27262976 28311551 cn9100
Iparea 28573696 28835839 cn1500
Iparea 28835840 28966911 cn1_1
..............................

Areas_arr stores the dictionary/array of the above text, and its key is the corresponding row number in the text

Awk implementation functions

Def search_newarea (areas_arr, IP, S, e ):
Start = s;
End = E;
IPS = IP. Split (".")
Long_ip = int (IPS [0]) * 256*256*256 + int (IPS [1]) * 256*256 + int (IPS [2]) * 256 + int (IPS [3]);
While (start <= end and start> = s and end <= E ):
Middle = int (start + end)/2 );
Ip_range = areas_arr [Middle]. Split (",")
If (long_ip> = int (ip_range [0]) and long_ip <= int (ip_range [1]):
Return ip_range [2];
If (long_ip> int (ip_range [0]):
Start = middle + 1;
Else:
End = middle-1;
Return '';

Python implementation code

Def search_newarea (areas_arr, IP, S, e ):
Start = s;
End = E;
IPS = IP. Split (".")
Long_ip = int (IPS [0]) * 256*256*256 + int (IPS [1]) * 256*256 + int (IPS [2]) * 256 + int (IPS [3]);
While (start <= end and start> = s and end <= E ):
Middle = int (start + end)/2 );
Ip_range = areas_arr [Middle]. Split (",")
If (long_ip> = int (ip_range [0]) and long_ip <= int (ip_range [1]):
Return ip_range [2];
If (long_ip> int (ip_range [0]):
Start = middle + 1;
Else:
End = middle-1;
Return '';