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| author | Matthew Strapp <msattr@gmail.com> | 2020-01-31 11:48:53 -0600 |
|---|---|---|
| committer | Matthew Strapp <msattr@gmail.com> | 2020-01-31 11:48:53 -0600 |
| commit | a0c4143cbda786895a9735bdbf545df5006942e8 (patch) | |
| tree | 5782c7b252311258465d5e44c2e3cb756da9fdc8 /csci4041/MergeSortPy.py | |
| parent | R E A R R A N G E (diff) | |
| download | homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar.gz homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar.bz2 homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar.lz homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar.xz homework-a0c4143cbda786895a9735bdbf545df5006942e8.tar.zst homework-a0c4143cbda786895a9735bdbf545df5006942e8.zip | |
Rename file
Diffstat (limited to 'csci4041/MergeSortPy.py')
| -rw-r--r-- | csci4041/MergeSortPy.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/csci4041/MergeSortPy.py b/csci4041/MergeSortPy.py new file mode 100644 index 0000000..bc9ae7d --- /dev/null +++ b/csci4041/MergeSortPy.py @@ -0,0 +1,30 @@ +def head(Q): + return Q[0] +def tail(Q): + return Q[1:] +def mergesort(U): + if U == [] or tail(U) == []: + return U + else: + L = [] + R = [] + while U != [] and tail(U) != []: + L = L+[head(U)] + U = tail(U) + R = R+[head(U)] + U = tail(U) + L = L + U + L = mergesort(L) + R = mergesort(R) + s = [] + while L != [] and R != []: + if head(L) <= head(R): + s = s + [head(L)] + L = tail(L) + else: + s = s + [head(R)] + R = tail(R) + s = s + L + R + return s + +print(mergesort([9,3,7,5,6,4,8,2]))
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