Prevent is_circular function from infinite loop #179
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Transform the is_circular function by shifting from a single pointer approach to employing slow and fast pointers. The single pointer method falls short in detecting loops that occur mid-list without additional storage. Utilizing slow and fast pointers overcomes this limitation, enabling the detection of mid-list loops. Although this approach introduces a slight increase in conditional checks, it remains a superior method for loop detection without the need for extra storage.
jserv
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Mar 28, 2024
jserv
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Mar 28, 2024
wilson20010327
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To follow the coding style, remove the usless parentheses.
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Original function will face infinite loop when there is a mid-list loop in queue. Transform the is_circular function by shifting from a single pointer approach to employing slow and fast pointers. The single pointer method falls short in detecting loops that occur mid-list without additional storage. Utilizing slow and fast pointers overcomes this limitation, enabling the detection of mid-list loops. Although this approach introduces a slight increase in conditional checks, it remains a superior method for loop detection without the need for extra storage.