merge sort

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merge sort merge sort algorithms and data structures course 1 merge sort idea algorithms and data structures course 2 a powerful problem solving technique. divide-and-conquer method solves problem in the following steps: divide step: divide the large problem into smaller problems. recursively solve the smaller problems. conquer step: combine the results of the smaller problems to produce the result of the larger problem. merge sort divide and conquer method algorithms and data structures course 3 merge sort is a divide-and-conquer sorting algorithm. divide step: divide the array into two (almost equal) halves. recursively sort the two halves. conquer step: merge the two halves to form a sorted array. merge sort divide and conquer method algorithms and data structures course 4 7 2 6 3 8 4 5 7 2 6 3 8 4 5 2 3 6 7 4 5 8 2 3 4 5 6 7 8 divide into …
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he remained part of second array to our merged array algorithms and data structures course 13 2 4 5 3 7 8 2 3 4 5 7 8 merge sort merge example first array has ended, so simply add the remained part of second array to our merged array algorithms and data structures course 14 2 4 5 3 7 8 2 3 4 5 7 8 merge sort merge example arrays merged algorithms and data structures course 15 merge sort merge implementation algorithms and data structures course 16 n n/2 n/2 n/4 n/4 n/4 n/4 1 1 1 1 level 0: mergesort n items level 1: mergesort n/2 items level 2: mergesort n/4 items level (lg n): mergesort 1 item … merge sort analysis algorithms and data structures course 17 merge sort analysis algorithms and data structures course 18 pros: the performance is guaranteed, i.e. unaffected by original ordering …
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merge sort merge sort algorithms and data structures course 1 merge sort idea algorithms and data structures course 2 a powerful problem solving technique. divide-and-conquer method solves problem in the following steps: divide step: divide the large problem into smaller problems. recursively solve the smaller problems. conquer step: combine the results of the smaller problems to produce the result of the larger problem. merge sort divide and conquer method algorithms and data structures course 3 merge sort is a divide-and-conquer sorting algorithm. divide step: divide the array into two (almost equal) halves. recursively sort the two halves. conquer step: merge the two halves to form a sorted array. merge sort divide and conquer method algorithms and data structures course 4 …

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