fix a bug in "Remove Duplicates from Sorted List" #47
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soulmachine
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Jan 8, 2016
fix a bug in "Remove Duplicates from Sorted List"
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An exellent fix, thank you! |
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In the original code, if the expression 'prev->val == cur->val' returns true, then prev->next will be updated and the memory 'cur' points to will be released. So, the cur = cur->next in 'for' is in fact illegal.
I fix this bug by just change cur = cur->next to cur=prev->next.