Create power.cpp

Beats 100%
gabedonnan · Mar 30, 2023 · 8f0d7e8 · 8f0d7e8
1 parent 400defd
commit 8f0d7e8
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/power.cpp b/power.cpp
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+class Solution {
+public:
+    double myPow(double x, int n) {
+        if (n == 0 || x == 1.0) {
+            return 1.0;
+        }
+
+        if (n == 1 || x == 0.0) {
+            return x;
+        }
+
+        if (n == -1) {
+            return 1.0/x;
+        }
+
+        if (n % 2 == 0) {
+            return myPow(x * x, n / 2);
+        } else {
+            return x * myPow(x, n-1);
+        }
+    }
+};