add fast fib

fibonacci_fast/main.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+#include <map>
+uint64_t fib(uint64_t n)
+{
+    static std::map<uint64_t,uint64_t> table{};
+    table[n] = n < 2 ? 1 : table[n-2] + table[n-1];
+    return table[n];
+}
+
+int main()
+{
+    std::cout << "Geben sie an die wievielte fib. Zahl sie suchen: ";
+    std::uint64_t n = 0;
+    std::cin >> n;
+    for(uint64_t i = 0; i <= n; ++i)
+     {
+        std::cout << "fib("<< i-1 <<") = " << fib(i) << "\n";
+     } 
+}

fibonacci_fast/makefile

@@ -0,0 +1,5 @@
+dev: compile run
+compile:
+	g++ -o fib main.cpp
+run: 
+	./fib