langs a-z

Task/Fibonacci-sequence/Objective-C/fibonacci-sequence-1.m

@@ -0,0 +1,10 @@
+-(long)fibonacci:(int)position
+{
+    long result = 0;
+    if (position < 2) {
+        result = position;
+    } else {
+        result = [self fibonacci:(position -1)] + [self fibonacci:(position -2)];
+    }
+    return result;
+}

Task/Fibonacci-sequence/Objective-C/fibonacci-sequence-2.m

@@ -0,0 +1,9 @@
++(long)fibonacci:(int)index {
+    long beforeLast = 0, last = 1;
+    while (index > 0) {
+        last += beforeLast;
+        beforeLast = last - beforeLast;
+        --index;
+    }
+    return last;
+}