WTF

day6/day.cpp

@@ -3,35 +3,6 @@
 #include <iostream>
 #include <vector>
 
-// this is defenitely my code
-void heapPermutation(std::vector<char> &a, int size,
-                     std::vector<std::vector<char>> &results) {
-  if (size == 1) {
-    results.push_back(a); // Store the current permutation
-    return;
-  }
-
-  for (int i = 0; i < size; i++) {
-    heapPermutation(a, size - 1, results); // Recur with reduced size
-
-    // If size is odd, swap the first element with the last element
-    if (size % 2 == 1) {
-      std::swap(a[0], a[size - 1]);
-    } else { // If size is even, swap the current element with the last element
-      std::swap(a[i], a[size - 1]);
-    }
-  }
-}
-
-std::vector<std::vector<char>>
-generatePermutations(const std::vector<char> &input) {
-  std::vector<char> chars = input;        // Create a mutable copy of input
-  std::vector<std::vector<char>> results; // To store all permutations
-  heapPermutation(chars, chars.size(), results); // Generate permutations
-  return results;                                // Return all permutations
-}
-// end of defenitely my code
-
 int main() {
   std::ifstream inputfile("input");
   std::string input;
@@ -93,13 +64,11 @@ int main() {
       exit(255);
       break;
     }
-    if (!AreWeInBounds(conditional_operation(posX, 1, op_x),
+    if (!AreWeInBounds(condop(posX, 1, op_x), condop(posY, 1, op_y), map)) {
-                       conditional_operation(posY, 1, op_y), map)) {
       break;
     }
 
-    switch (map[conditional_operation(posX, 1, op_x)]
+    switch (map[condop(posX, 1, op_x)][condop(posY, 1, op_y)]) {
-               [conditional_operation(posY, 1, op_y)]) {
     case '#':
       direction++;
       if (direction > 3) {
@@ -107,8 +76,8 @@ int main() {
       }
       break;
     default:
-      posX = conditional_operation(posX, 1, op_x);
+      posX = condop(posX, 1, op_x);
-      posY = conditional_operation(posY, 1, op_y);
+      posY = condop(posY, 1, op_y);
     }
   }
 

day6/second.cpp

@@ -39,13 +39,11 @@ bool WillHeGetStuck(int posX, int posY, int direction, int locX, int locY,
       exit(255);
       break;
     }
-    if (!AreWeInBounds(conditional_operation(posX, 1, op_x),
+    if (!AreWeInBounds(condop(posX, 1, op_x), condop(posY, 1, op_y), map)) {
-                       conditional_operation(posY, 1, op_y), map)) {
       break;
     }
 
-    switch (map[conditional_operation(posX, 1, op_x)]
+    switch (map[condop(posX, 1, op_x)][condop(posY, 1, op_y)]) {
-               [conditional_operation(posY, 1, op_y)]) {
     case '#':
       direction++;
       if (direction > 3) {
@@ -53,8 +51,8 @@ bool WillHeGetStuck(int posX, int posY, int direction, int locX, int locY,
       }
       break;
     default:
-      posX = conditional_operation(posX, 1, op_x);
+      posX = condop(posX, 1, op_x);
-      posY = conditional_operation(posY, 1, op_y);
+      posY = condop(posY, 1, op_y);
     }
   }
   return false;

day7/day.cpp

@@ -71,9 +71,9 @@ int main() {
       TmpRes = lineSplitedInt[0];
       // cicle from one since TmpRes is set to the first number
       for (int i = 1; i < lineSplitedInt.size(); i++) {
-        TmpRes = conditional_operation_ull(
+        TmpRes = condop_ull(TmpRes,
-            TmpRes, static_cast<unsigned long long>(lineSplitedInt[i]),
+                            static_cast<unsigned long long>(lineSplitedInt[i]),
-            permutation[i - 1]);
+                            permutation[i - 1]);
       }
       PossibleResults.push_back(TmpRes);
     }

day7/second.cpp

@@ -71,9 +71,9 @@ int main() {
       TmpRes = lineSplitedInt[0];
       // cicle from one since TmpRes is set to the first number
       for (int i = 1; i < lineSplitedInt.size(); i++) {
-        TmpRes = conditional_operation_ull(
+        TmpRes = condop_ull(TmpRes,
-            TmpRes, static_cast<unsigned long long>(lineSplitedInt[i]),
+                            static_cast<unsigned long long>(lineSplitedInt[i]),
-            permutation[i - 1]);
+                            permutation[i - 1]);
       }
       PossibleResults.push_back(TmpRes);
     }

day8/day.cpp

@@ -0,0 +1,88 @@
+#include "../include/color.h"
+#include "../include/useful_funcs.h"
+#include <array>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+int main() {
+  std::ifstream inputfile("input");
+  std::string input;
+
+  int res = 0;
+  if (!inputfile.is_open()) {
+    std::cerr << "Could not open the file" << std::endl;
+    return ENOENT;
+  }
+  std::string line;
+  std::vector<std::vector<char>> map;
+  std::vector<std::vector<char>> antiNodeMap;
+  std::vector<char> fregs;
+
+  while (std::getline(inputfile, line)) {
+    map.push_back(std::vector<char>(line.begin(), line.end()));
+  }
+  antiNodeMap.resize(map.size(), std::vector<char>(map[0].size(), '.'));
+
+  for (int i = 0; i < map.size(); i++) {
+    for (int j = 0; j < map[i].size(); j++) {
+      if (map[i][j] != '.') {
+        if (std::find(fregs.begin(), fregs.end(), map[i][j]) == fregs.end()) {
+          fregs.push_back(map[i][j]);
+        }
+      }
+    }
+  }
+
+  std::vector<std::array<int, 2>> AntenaLocations;
+  int DistX;
+  int DistY;
+
+  int antiNodeX;
+  int antiNodeY;
+
+  for (char freg : fregs) {
+    std::clog << RED "searching for: " << YELLOW << freg << RED
+              << " antinodes" RESET "\n";
+    AntenaLocations.clear();
+    for (int i = 0; i < map.size(); i++) {
+      for (int j = 0; j < map[i].size(); j++) {
+        if (map[i][j] == freg) {
+          AntenaLocations.push_back({i, j});
+        }
+      }
+    }
+    for (int i = 0; i < AntenaLocations.size(); i++) {
+      for (int j = 0; j < AntenaLocations.size(); j++) {
+        if (i != j) {
+          DistX = AntenaLocations[i][0] - AntenaLocations[j][0];
+          DistY = AntenaLocations[i][1] - AntenaLocations[j][1];
+
+          if (AreWeInBounds(AntenaLocations[j][0] - DistX,
+                            AntenaLocations[j][1] - DistY, map)) {
+            antiNodeMap[AntenaLocations[j][0] - DistX]
+                       [AntenaLocations[j][1] - DistY] = '#';
+          }
+
+          if (AreWeInBounds(AntenaLocations[i][0] + DistX,
+                            AntenaLocations[i][1] + DistY, map)) {
+            antiNodeMap[AntenaLocations[i][0] + DistX]
+                       [AntenaLocations[i][1] + DistY] = '#';
+          }
+        }
+      }
+    }
+  }
+
+  for (int i = 0; i < antiNodeMap.size(); i++) {
+    for (int j = 0; j < antiNodeMap[i].size(); j++) {
+      std::cout << antiNodeMap[i][j];
+      if (antiNodeMap[i][j] == '#') {
+        res++;
+      }
+    }
+    std::cout << "\n";
+  }
+
+  std::cout << CYAN "Number of antinodes: " << YELLOW << res << RESET "\n";
+}

day8/second.cpp

@@ -0,0 +1,107 @@
+#include "../include/color.h"
+#include "../include/useful_funcs.h"
+#include <array>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+int main() {
+  std::ifstream inputfile("input");
+  std::string input;
+
+  int res = 0;
+  if (!inputfile.is_open()) {
+    std::cerr << "Could not open the file" << std::endl;
+    return ENOENT;
+  }
+  std::string line;
+  std::vector<std::vector<char>> map;
+  std::vector<std::vector<char>> antiNodeMap;
+  std::vector<char> fregs;
+
+  while (std::getline(inputfile, line)) {
+    map.push_back(std::vector<char>(line.begin(), line.end()));
+  }
+  antiNodeMap.resize(map.size(), std::vector<char>(map[0].size(), '.'));
+
+  for (int i = 0; i < map.size(); i++) {
+    for (int j = 0; j < map[i].size(); j++) {
+      if (map[i][j] != '.') {
+        if (std::find(fregs.begin(), fregs.end(), map[i][j]) == fregs.end()) {
+          fregs.push_back(map[i][j]);
+        }
+        antiNodeMap[i][j] = '#';
+      }
+    }
+  }
+
+  std::vector<std::array<int, 2>> AntenaLocations;
+  int DistX;
+  int DistY;
+
+  int antiNodeX;
+  int antiNodeY;
+
+  int LocX;
+  int LocY;
+
+  char op;
+  int *itPtr;
+
+  for (char freg : fregs) {
+    std::clog << RED "searching for: " << YELLOW << freg << RED
+              << " antinodes" RESET "\n";
+    AntenaLocations.clear();
+    for (int i = 0; i < map.size(); i++) {
+      for (int j = 0; j < map[i].size(); j++) {
+        if (map[i][j] == freg) {
+          AntenaLocations.push_back({i, j});
+        }
+      }
+    }
+    for (int i = 0; i < AntenaLocations.size(); i++) {
+      for (int j = 0; j < AntenaLocations.size(); j++) {
+        if (i != j) {
+          DistX = AntenaLocations[i][0] - AntenaLocations[j][0];
+          DistY = AntenaLocations[i][1] - AntenaLocations[j][1];
+
+          for (int k = 0; k < 2; k++) {
+            switch (k) {
+            case 0:
+              op = '+';
+              itPtr = &i;
+              break;
+            case 1:
+              op = '-';
+              itPtr = &j;
+              break;
+            default:
+              std::cerr << "how did we get here?" << std::endl;
+              exit(255);
+            }
+            LocX = condop(AntenaLocations[*itPtr][0], DistX, op);
+            LocY = condop(AntenaLocations[*itPtr][1], DistY, op);
+
+            while (AreWeInBounds(LocX, LocY, map)) {
+              antiNodeMap[LocX][LocY] = '#';
+              LocX = condop(LocX, DistX, op);
+              LocY = condop(LocY, DistY, op);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  for (int i = 0; i < antiNodeMap.size(); i++) {
+    for (int j = 0; j < antiNodeMap[i].size(); j++) {
+      std::cout << antiNodeMap[i][j];
+      if (antiNodeMap[i][j] == '#') {
+        res++;
+      }
+    }
+    std::cout << "\n";
+  }
+
+  std::cout << CYAN "Number of antinodes: " << YELLOW << res << RESET "\n";
+}

day9/day.cpp

@@ -0,0 +1,72 @@
+#include "../include/color.h"
+#include "../include/useful_funcs.h"
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+void printDiskMap(std::vector<char> &diskmap) {
+  std::string numC = BOLDGREEN;
+  for (int i = 0; i < diskmap.size(); i++) {
+    if (diskmap[i] == '.') {
+      numC = BOLDYELLOW;
+      std::clog << RED "." << RESET;
+    } else {
+      std::clog << numC << diskmap[i] << RESET;
+    }
+  }
+  std::cout << RESET << std::endl;
+}
+int main() {
+  std::ifstream inputfile("input");
+
+  unsigned long long res = 0;
+  if (!inputfile.is_open()) {
+    std::cerr << "Could not open the file" << std::endl;
+    return ENOENT;
+  }
+
+  std::vector<char> diskmap;
+
+  // create the disk map
+  {
+    std::string line;
+    inputfile >> line;
+    int id = 0;
+    std::vector<char> lineSplited = std::vector<char>(line.begin(), line.end());
+    for (int i = 0; i < lineSplited.size(); i++) {
+
+      for (int j = 0; j < lineSplited[i] - '0'; j++) {
+        if (i % 2 == 0) {
+          diskmap.push_back(id + '0');
+        } else {
+          diskmap.push_back('.');
+        }
+      }
+      if (i % 2 == 0) {
+        id++;
+      }
+    }
+  }
+  printDiskMap(diskmap);
+  {
+    int firstDot;
+    while (std::find(diskmap.begin(), diskmap.end(), '.') != diskmap.end()) {
+      firstDot =
+          std::find(diskmap.begin(), diskmap.end(), '.') - diskmap.begin();
+      diskmap[firstDot] = diskmap.back();
+      diskmap.pop_back();
+      printDiskMap(diskmap);
+    }
+  }
+  std::vector<int> diskmapInt;
+
+  std::transform(diskmap.begin(), diskmap.end(), std::back_inserter(diskmapInt),
+                 [](const char &s) { return s - '0'; });
+
+  for (int i = 0; i < diskmapInt.size(); i++) {
+    res += i * diskmapInt[i];
+  }
+  std::cout << CYAN "\nfilesystem checksum is: " << BOLDYELLOW << res << RESET
+            << std::endl;
+}

include/useful_funcs.h

@@ -31,7 +31,7 @@ bool AreWeInBounds(int x, int y, std::vector<std::vector<char>> &TwoDCharVec) {
   return true;
 }
 
-int conditional_operation(int a, int b, char op) {
+int condop(int a, int b, char op) {
   switch (op) {
   case '+':
     return a + b;
@@ -48,8 +48,8 @@ int conditional_operation(int a, int b, char op) {
   }
 }
 
-unsigned long long conditional_operation_ull(unsigned long long a,
+unsigned long long condop_ull(unsigned long long a, unsigned long long b,
-                                             unsigned long long b, char op) {
+                              char op) {
   switch (op) {
   case '+':
     return a + b;