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Example Programs
Hello, World
The mandatory 'Hello World' program is a oneliner in Euphoria.
puts(1, "Hello, World\n")
The builtin routine puts does the job of displaying text on a screen. It requires two arguments. The first argument, 1, directs the output to STDOUT or the console. The second argument, is a string of text that will be output.
The result is:
Hello, World
Sorting
The following is an example of a more useful Euphoria program.
include std/console.e sequence original_list function merge_sort(sequence x)  put x into ascending order using a recursive merge sort integer n, mid sequence merged, a, b n = length(x) if n = 0 or n = 1 then return x  trivial case end if mid = floor(n/2) a = merge_sort(x[1..mid])  sort first half of x b = merge_sort(x[mid+1..n])  sort second half of x  merge the two sorted halves into one merged = {} while length(a) > 0 and length(b) > 0 do if compare(a[1], b[1]) < 0 then merged = append(merged, a[1]) a = a[2..length(a)] else merged = append(merged, b[1]) b = b[2..length(b)] end if end while return merged & a & b  merged data plus leftovers end function procedure print_sorted_list()  generate sorted_list from original_list sequence sorted_list original_list = {19, 10, 23, 41, 84, 55, 98, 67, 76, 32} sorted_list = merge_sort(original_list) for i = 1 to length(sorted_list) do display("Number [] was at position [:2], now at [:2]", {sorted_list[i], find(sorted_list[i], original_list), i} ) end for end procedure
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