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Today, I will share with you the mail domain sorter program that I have coded.
In fact, this is not only a mail domain sorter, it is a program that works for all the words you want to separate in the text file.
I think it will work for you.
The program can split a 1M line in 1 to 5 minutes.
As a result of the test, he separated the 5 words I wanted from 1 million lines in 3 minutes. I think it's a good result
Images from the Application
The word input we want to separate