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Interview Question


Country: United States



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Better use counting or radix sort for string sorting.
If you want to use selection sort than simply replace the comparison with you custom comparator function which compares to strings based on ascii values of characters starting from 0th place.

- Cerberuz September 09, 2012 | Flag Reply
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How will you use counting sort for strings? Radix sort is OK.

- eugene.yarovoi September 10, 2012 | Flag
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The original question is what i have written.It has to be solved by selection sort and using language C.

- BeautifulCode September 10, 2012 | Flag
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@eugene.yarovoi, using R-B Tree we can store count of each string directly. This will give O(n*log(n)*log(n)) implementation. If we use hashing for counting, it will give O(n*log(n)) solution. { obviously i am ignoring string lengths in time complexity + overhead of collision avoidance }. So, it won't be better than radix sort but will outperform selection sort.

- Cerberuz September 10, 2012 | Flag
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how about the efficiency if implemented using linked-list instead of array version???

- BeautifulCode September 10, 2012 | Flag Reply


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