Add C++ implementation

begeekmyfriend · begeekmyfriend · commit ec1138ec6f1a · 2021-02-11T16:40:20.000+08:00
Signed-off-by: begeekmyfriend &lt;begeekmyfriend@gmail.com&gt;
diff --git a/0050_pow/pow.c b/0050_pow/pow.c
@@ -2,15 +2,16 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-static double fast_pow(double x, int n)
+
+double fast_pow(double x, int n)
 {
     if (n == 0) { return 1.0; }
     if (n == 1) { return x; }
     double t = fast_pow(x, n / 2);
     return n & 1 ? t * t * x : t * t;
 }
 
-static double my_pow(double x, int n)
+double my_pow(double x, int n)
 {
     if (n == INT_MIN) {
         double t = 1 / fast_pow(x, -(n / 2));

Original file line number	Diff line number	Diff line change
`@@ -2,15 +2,16 @@`
`2`	`2`	`#include <stdio.h>`
`3`	`3`	`#include <stdlib.h>`
`4`	`4`
`5`		`-static double fast_pow(double x, int n)`
	`5`	`+`
	`6`	`+double fast_pow(double x, int n)`
`6`	`7`	`{`
`7`	`8`	`if (n == 0) { return 1.0; }`
`8`	`9`	`if (n == 1) { return x; }`
`9`	`10`	`double t = fast_pow(x, n / 2);`
`10`	`11`	`return n & 1 ? t * t * x : t * t;`
`11`	`12`	`}`
`12`	`13`
`13`		`-static double my_pow(double x, int n)`
	`14`	`+double my_pow(double x, int n)`
`14`	`15`	`{`
`15`	`16`	`if (n == INT_MIN) {`
`16`	`17`	`double t = 1 / fast_pow(x, -(n / 2));`