odd-even transposition Algorithm

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hadi
hadi 2014-10-28
评论： hadi 2014-10-28
Hi
the following code is about odd-even sort algorithm in C++
void OddEvenSort(T a[], int n)
{
for (int i = 0; i < n; ++i)
{
if (i & 1)
{
for (int j = 2; j < n; j+=2)
if (a[j] < a[j-1])
swap(a[j-1], a[j]);
}
else
{
for (int j = 1; j < n; j+=2)
if (a[j] < a[j-1])
swap(a[j-1], a[j]);
}
}
how to convert this code in MATLAB? ??
  1 个评论
Adam
Adam 2014-10-28
Just program it in a function. Apart from 'swap' which you will have to program a trivial equivalent of yourself it doesn't seem to present any challenges. If you are completely new to Matlab then you need to start with the Matlab help basics and tutorials.

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回答（1 个）

yonatan gerufi
yonatan gerufi 2014-10-28
if your array is called "arr", simple code that will do the work is:
odd =mod(arr,2);
odd_arr = arr.*odd;
odd_arr(odd_arr==0) = [];
even = ~odd;
even_arr = arr.*even;
even_arr(even_arr==0) = [];
final_arr = [even_arr, odd_arr];

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