From da64db914e136f336d79226ae35bfe78cc602f05 Mon Sep 17 00:00:00 2001
From: Leon Wilzer <leon.wilzer@protonmail.com>
Date: Mon, 14 Nov 2022 12:41:19 +0100
Subject: [PATCH] idk

---
 src/sheet03.cpp | 107 ++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 99 insertions(+), 8 deletions(-)

diff --git a/src/sheet03.cpp b/src/sheet03.cpp
index 55a6435..7402b1a 100644
--- a/src/sheet03.cpp
+++ b/src/sheet03.cpp
@@ -1,11 +1,13 @@
 #include <string>
 #include <iostream>
+#include <cmath>
+#include <vector>
 #include "../headers/MyType.h"
 
-int calculate(const char &argv)
-{
-
-}
+double calculate(int argc, char **argv);
+void pol2cart(double r, double phi, double &x, double &y);
+void pascal(int argc, char **argv);
+void pascal_mem(int argc, char **argv);
 
 int main(int argc, char **argv)
 {
@@ -16,9 +18,98 @@ int main(int argc, char **argv)
     MyType mj(std::move(j));
     MyType maj("jj", 69);
     maj = std::move(cj);
-    if(argc == 4)
-    {
-        calculate(argv);
-    }
+    std::cout << calculate(argc, argv) << '\n';
+    double x = 0;
+    double y = 0;
+    pol2cart(0.5, 0, x, y);
+    std::cout << x << " " << y << '\n';
+    pascal(argc, argv);
     return 0;
 }
+
+double calculate(int argc, char **argv)
+{
+    if(argc != 4)
+    {
+        return std::nan("");
+    }
+
+    switch(argv[2][0])
+    {
+        case '+':
+            return std::stod(argv[1]) + std::stod(argv[3]);
+        case '-':
+            return std::stod(argv[1]) - std::stod(argv[3]);
+        case 'x':
+            return std::stod(argv[1]) * std::stod(argv[3]);
+        case '/':
+            return std::stod(argv[1]) / std::stod(argv[3]);
+        default:
+            std::cout << "Invalid operand: " << argv[2][0] << '\n';
+            return std::nan("");
+    }
+}
+
+void pol2cart(double r, double phi, double &x, double &y)
+{
+    x = r * cos(phi);
+    y = r * sin(phi);
+}
+
+void pascal(int argc, char **argv)
+{
+    if (argc != 2 || std::stol(argv[1]) == 0) { return; }
+
+    unsigned depth = std::stol(argv[1]);
+
+    std::vector<std::vector<unsigned long long>> pascal(depth+1, std::vector<unsigned long long>(depth+1,0));
+    pascal[1][1] = 1;
+    for(unsigned long long y=2; y<depth; ++y)
+    {
+        for(unsigned long long x=2; x<=depth; ++x)
+        {
+            pascal[y][x] = pascal[y-1][x-1] + pascal[y-1][x];
+            if(pascal[y][x]!=0)
+            {
+                std::cout << pascal[y][x] << '\t';
+            }
+        }
+        std::cout<< '\n';
+    }
+}
+unsigned fibonacci_nonrec(unsigned n)
+{
+    unsigned fibo = 0;
+    unsigned prev_fibo = 1;
+    unsigned prev_prev_fibo = 0;
+
+   for(int i=2; i<=n; ++i)
+    {
+        fibo = prev_fibo + prev_prev_fibo;
+        prev_prev_fibo = prev_fibo;
+        prev_fibo = fibo;
+    }
+
+    return fibo;
+}
+void pascal_mem(int argc, char **argv)
+{
+    
+    if (argc != 2 || std::stol(argv[1]) == 0) { return; }
+
+    unsigned depth = std::stol(argv[1]);
+    depth = (depth*depth-depth)/2;
+    std::vector<unsigned long long> pascal(depth,0);
+    pascal[0] = 1;
+    for(unsigned long long i=1; i<depth; i=(i*i-i)/2)
+    {
+        for(unsigned long long j=1; j<=i;++j)
+        {
+
+        }
+        pascal[i] = pascal[i-1];
+        ++i;
+    }
+}
+
+