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Sorting & Recursion

Sorting & Recursion. Briana B. Morrison Adapted from Alan Eugenio & William J. Collins. Topics. Review Insertion Sort Selection Sort Bubble Sort This term Tree Sort Heap Sort Radix Sort New Merge Sort Quick Sort. Selection Sort.

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Sorting & Recursion

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  1. Sorting & Recursion Briana B. Morrison Adapted from Alan Eugenio & William J. Collins

  2. Topics • Review • Insertion Sort • Selection Sort • Bubble Sort • This term • Tree Sort • Heap Sort • Radix Sort • New • Merge Sort • Quick Sort Sorting

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  14. Selection Sort • Loops through input and “selects” smallest/largest value and swaps with current location • Worst case O(n2) • Average case O(n2) Sorting

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  21. Bubble Sort • Loops through input doing “adjacent” comparisons • Biggest/smallest element “bubble” to top/bottom • Worst case O(n2) • Average case O(n2) Sorting

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  48. FOR TREE SORT, EACH INSERTION TAKES LOGARITHMIC TIME AT MOST, SO FOR n INSERTIONS worstTime(n) IS O(n log n). therefore… averageTime(n) IS O(n log n) Sorting

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