chore: new algorithms

1 files changed, 34 insertions, 0 deletions

diff --git a/I_anno/Programmazione_2/algorithms/pow.cc b/I_anno/Programmazione_2/algorithms/pow.cc
new file mode 100644
index 0000000..70f5b43
--- /dev/null
+++ b/I_anno/Programmazione_2/algorithms/pow.cc
@@ -0,0 +1,34 @@
+#include<iostream>
+
+using namespace std;
+
+int pow(int b, int e) {
+    if(e == 0) return 1;
+    int a = b;
+    int inc = b;
+    for(int i = 0; i < e-1; ++i) {
+        for(int j = 0; j < b-1; ++j) {
+            a+=inc;
+        }
+        inc = a;
+    }
+    return a;
+}
+
+int mul(int b, int e) {
+    if(e == 0) return 0;
+
+    return b+mul(b, e-1);
+}
+
+int pow2(int b, int e) {
+    if(e == 0) return 1;
+
+    return mul(b, pow(b, e-1));
+}
+
+int main() {
+    cout << pow(2, 5) << endl;
+    cout << pow2(2, 5) << endl;
+    return 0;
+}