fix: coding style and file format for all example.

eBook/examples/chapter_6/fibonacci_memoization.go

@@ -1,42 +1,44 @@
-// fibonacci_memoization.go
-package main
-
-import (
-	"fmt"
-	"time"
-)
-
-const LIM = 41
-var fibs [LIM]uint64
-
-func main() {
-	var result uint64 = 0
-	start := time.Now()
-	for i:=0; i < LIM; i++ {
-		result = fibonacci(i) 
-		fmt.Printf("fibonacci(%d) is: %d\n", i, result)
-	}
-	end := time.Now()
-	delta := end.Sub(start)
-	fmt.Printf("longCalculation took this amount of time: %s\n", delta) 
-}
-
-func fibonacci(n int) (res uint64) {
-	// memoization: check if fibonacci(n) is already known in array:
-	if fibs[n] != 0 {
-		res = fibs[n]
-		return
-	}
-	if n <= 1 {
-		res = 1
-	} else {
-		res = fibonacci(n-1) + fibonacci(n-2)
-	}
-	fibs[n] = res
-	return
-}
-/*
-Output: LIM=40:  
-normal (fibonacci.go): the calculation took this amount of time: 4.730270 s
-     with memoization: the calculation took this amount of time: 0.001000 s
-*/
+// fibonacci_memoization.go
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+const LIM = 41
+
+var fibs [LIM]uint64
+
+func main() {
+	var result uint64 = 0
+	start := time.Now()
+	for i := 0; i < LIM; i++ {
+		result = fibonacci(i)
+		fmt.Printf("fibonacci(%d) is: %d\n", i, result)
+	}
+	end := time.Now()
+	delta := end.Sub(start)
+	fmt.Printf("longCalculation took this amount of time: %s\n", delta)
+}
+
+func fibonacci(n int) (res uint64) {
+	// memoization: check if fibonacci(n) is already known in array:
+	if fibs[n] != 0 {
+		res = fibs[n]
+		return
+	}
+	if n <= 1 {
+		res = 1
+	} else {
+		res = fibonacci(n-1) + fibonacci(n-2)
+	}
+	fibs[n] = res
+	return
+}
+
+/*
+Output: LIM=40:
+normal (fibonacci.go): the calculation took this amount of time: 4.730270 s
+     with memoization: the calculation took this amount of time: 0.001000 s
+*/