Add Fibonacci in Odin

archive/o/odin/fibonacci.odin

@@ -0,0 +1,33 @@
+package main
+
+import "core:fmt"
+import "core:strconv"
+import "core:os"
+
+main :: proc() {
+    if len(os.args) != 2 {
+        usage()
+        return
+    }
+    input, check := strconv.parse_int(os.args[1], 10)
+    if !check {
+        usage()
+        return
+    }
+
+    use1 := 0
+    use2 := 1
+    use3 := 0
+    for i:=1 ; i <= input; i += 1 {
+        use3 = use1 + use2
+        use1 = use2
+        use2 = use3
+        fmt.print(i)
+        fmt.print(": ")
+        fmt.println(use1)
+    }
+}
+
+usage :: proc() { 
+    fmt.println("Usage: please input the count of fibonacci numbers to output")
+}