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-rw-r--r--Year_1/Programming_2/algorithms/log.cc25
1 files changed, 25 insertions, 0 deletions
diff --git a/Year_1/Programming_2/algorithms/log.cc b/Year_1/Programming_2/algorithms/log.cc
new file mode 100644
index 0000000..1e49a2e
--- /dev/null
+++ b/Year_1/Programming_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;
+}