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Please analyze the running time of the following variants of merge sort. ( a ) Divide the original input array constant times first ( e
Please analyze the running time of the following variants of merge sort.
aDivide the original input array constant times first eg we divide the array times; then sort the subarrays by using insertion sort. Finally, merge all sorted subarrays recursively to get the sorted array. Dividing the input array a constant times means it stops dividing somewhere even it is not the base case.
b Divide the input array unitl each subarray has constant c numbers; sort those subarrays with inserstion sort; merge them recursively.
c Divide the array as normal until each subarray has only one number; mege these subarrays one by one to obtain the whole sorted array.
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