Sudan function: Difference between revisions
Added Swift implementation
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> 35
</pre>
=={{header|Swift}}
{{trans|C}}
I have started working on Swift and am going to practice on RosettaCode. On converting my C implementation to Swift which I contributed last year I found Swift allows statement ending semicolons and enclosing parantheses in if/else statements. I didn't find that anywhere while learning Swift so I am posting both implementations here, the "C like" and the "Pure" Swift.
Both have been tested with Xcode 14.2 (14C18)
===C like===
<lang swift>
//Aamrun, 3rd February 2023
func F(n: Int,x: Int,y: Int) -> Int {
if (n == 0) {
return x + y;
}
else if (y == 0) {
return x;
}
return F(n: n - 1, x: F(n: n, x: x, y: y - 1), y: F(n: n, x: x, y: y - 1) + y);
}
print("F1(3,3) = " + String(F(n: 1,x: 3,y: 3)));
</lang>
===Pure Swift===
<lang swift>
//Aamrun, 3rd February 2023
func F(n: Int,x: Int,y: Int) -> Int {
if n == 0 {
return x + y
}
else if y == 0 {
return x
}
return F(n: n - 1, x: F(n: n, x: x, y: y - 1), y: F(n: n, x: x, y: y - 1) + y)
}
print("F1(3,3) = " + String(F(n: 1,x: 3,y: 3)))
</lang>
Output is the same for both
{{out}}
<pre>
F1(3,3) = 35
</pre>
=={{header|V (Vlang)}}==
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