chore: new algorithms

1 files changed, 25 insertions, 0 deletions

diff --git a/I_anno/Programmazione_2/algorithms/log.cc b/I_anno/Programmazione_2/algorithms/log.cc
new file mode 100644
index 0000000..1e49a2e
--- /dev/null
+++ b/I_anno/Programmazione_2/algorithms/log.cc
@@ -0,0 +1,25 @@
+#include<iostream>
+
+using namespace std;
+
+double log(double n) {
+    if(n <= 2) return 1.0;
+    return 1.0 + log(n/2);
+}
+
+int log2(double n) {
+    int a = 1;
+
+    while(n > 2) {
+        n /= 2;
+        ++a;
+    }
+
+    return a;
+}
+
+int main() {
+    for(int i = 0; i < 25; ++i)
+        cout << i << ' ' << log(i) << ' ' << log2(i) << endl;
+    return 0;
+}