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authorDerick Huth <derickhuth@gmail.com>2015-09-24 12:22:41 -0600
committerDerick Huth <derickhuth@gmail.com>2015-09-24 12:22:41 -0600
commit4631ad76927d433da5d55c3c373a1dfd0f74c9d4 (patch)
treef8dcba88576ec95e403f0c14efd80e970f30a260 /test-chill/unit-tests/cprog/MergeSorter.cc
parent6eb2b89896da66a77d0dcdf2d72b98c122826949 (diff)
parent0cff3f9a3c4ccd434900162ebef4bd814850f481 (diff)
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Merge pull request #7 from dhuth/master
V0.2.1
Diffstat (limited to 'test-chill/unit-tests/cprog/MergeSorter.cc')
-rw-r--r--test-chill/unit-tests/cprog/MergeSorter.cc77
1 files changed, 0 insertions, 77 deletions
diff --git a/test-chill/unit-tests/cprog/MergeSorter.cc b/test-chill/unit-tests/cprog/MergeSorter.cc
deleted file mode 100644
index 6e747a3..0000000
--- a/test-chill/unit-tests/cprog/MergeSorter.cc
+++ /dev/null
@@ -1,77 +0,0 @@
-#include "MergeSorter.h"
-
-/* Python
-def msort(lst, start, end, pindent = 0):
- if start == end:
- return
- center = start + ((end - start) // 2)
- print(' '*pindent + "SPLIT {}|{}".format(lst[start:center+1], lst[center+1:end+1]))
- msort(lst, start, center, pindent+1)
- msort(lst, center+1, end, pindent+1)
- left = list(lst[start:center+1])
- right = list(lst[center+1:end+1])
- print(' '*pindent + "MERGE {}|{}".format(lst[start:center+1], lst[center+1:end+1]))
- i,j = 0, 0
- for k in range(start, end+1):
- if i >= len(left):
- lst[k] = right[j]
- j += 1
- print(' '*(pindent+1) + 'pull j: {} {} {}'.format(lst[start:k+1], left[i:], right[j:]))
- elif j >= len(right):
- lst[k] = left[i]
- i += 1
- print(' '*(pindent+1) + 'pull i: {} {} {}'.format(lst[start:k+1], left[i:], right[j:]))
- elif left[i] > right[j]:
- lst[k] = right[j]
- j += 1
- print(' '*(pindent+1) + 'pull j: {} {} {}'.format(lst[start:k+1], left[i:], right[j:]))
- else:
- lst[k] = left[i]
- i += 1
- print(' '*(pindent+1) + 'pull i: {} {} {}'.format(lst[start:k+1], left[i:], right[j:]))
- print(' '*pindent + "-- {}".format(lst[start:end+1]))
-
-
-if __name__ == '__main__':
- import random as r
- x = [int(r.random()*12) for i in range(7)]
- print(x)
- msort(x, 0, len(x)-1)
- print(x)
-*/
-
-static void mergesort(std::vector<int>& lst, int start, int end) {
- if(start == end) return;
- int center = start + (end-start)/2;
- mergesort(lst, start, center);
- mergesort(lst, center+1, end);
- std::vector<int> left = std::vector<int>(lst.begin()+start, lst.begin()+(center+1));
- std::vector<int> right = std::vector<int>(lst.begin()+(center+1),lst.begin()+(end+1));
- int i = 0;
- int j = 0;
- for(int k = start; k < (end+1); k++) {
- if (i >= left.size()) {
- lst[k] = right[j++];
- }
- else if(j >= right.size()) {
- lst[k] = left[i++];
- }
- else if(left[i] > right[j]) {
- lst[k] = right[j++];
- }
- else {
- lst[k] = left[i++];
- }
- }
-}
-
-MergeSorter::MergeSorter() {
- this->name = std::string("mergesort");
-}
-
-MergeSorter::~MergeSorter() {
-}
-
-void MergeSorter::sort(std::vector<int>& list) const {
- mergesort(list, 0, list.size()-1);
-}