Why is two pointer algorithm very difficult?

Правка en1, от KaTiWarn, 2022-12-05 06:29:02

Does anyone face problem like me? I found that when I tried to write two pointer, I am very confused and I struggle with my code for very long time. Sometimes, I easily bugged. How can I improve this?

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en1 Английский KaTiWarn 2022-12-05 06:29:02 244 Initial revision (published)