2019.1.30 add more fib examples

wingfish · wingfish · commit c645808eefa9 · 2019-01-30T19:49:59.000+08:00
diff --git a/fib/fib.nim b/fib/fib.nim
@@ -0,0 +1,16 @@
+
+
+import math, strformat, times
+
+proc fib(n: int): int =
+    if n <= 2:
+        return 1
+    else:
+        return fib(n - 1) + fib(n - 2)
+
+when isMainModule:
+    let x = 47
+    let start = epochTime()
+    let res = fib(x)
+    let elapsed = (epochtime() - start).round(2)
+    stderr.writeLine(&"Nim Computed fib({x})={res} in {elapsed} seconds")
diff --git a/fib/fib.py b/fib/fib.py
@@ -19,6 +19,11 @@ def cache_fib(n, _cache={}):
 
 if __name__ == "__main__":
     x = 47
+    start = time.time()
+    res = fib(x)
+    elapsed = time.time() - start
+    print("Python Computed fib(%s)=%s in %0.8f seconds" % (x, res, elapsed))
+
     start = time.time()
     res = cache_fib(x)
     elapsed = time.time() - start
diff --git a/fib/fib_nimpy.nim b/fib/fib_nimpy.nim
@@ -0,0 +1,7 @@
+import nimpy
+
+proc fib(n: int): int {.exportpy.} =
+    if n <= 2:
+        return 1
+    else:
+        return fib(n - 1) + fib(n - 2)
diff --git a/fib/fib_nimpy.so b/fib/fib_nimpy.so
diff --git a/fib/nim_fib.py b/fib/nim_fib.py
@@ -0,0 +1,9 @@
+import time
+from fib_nimpy import fib
+
+if __name__ == "__main__":
+    x = 30
+    start = time.time()
+    res = fib(x)
+    elapsed = time.time() - start
+    print("Py3+Nim Computed fib(%s)=%s in %0.8f seconds" % (x, res, elapsed))
