initial commit

.gitignore

@@ -0,0 +1 @@
+.vscode

day1/day.cpp

@@ -0,0 +1,78 @@
+#include <algorithm>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <errno.h>
+
+std::vector<std::string> splitString(const std::string& str) {
+    std::istringstream iss(str);
+    std::vector<std::string> words;
+    std::string word;
+
+    while (iss >> word) {
+        words.push_back(word);
+    }
+
+    return words;
+}
+
+int main() {
+    std::ifstream inputfile("input");
+    std::string input;
+    
+    std::vector<int> l_sl;
+    std::vector<int> r_sl;
+    if (inputfile.is_open()) {
+        // Read each line from the file and store it in the
+        // 'line' variable.
+        std::string line;
+        std::vector<std::string> num_s;
+        while (std::getline(inputfile, line)) {
+            num_s = splitString(line);
+            l_sl.push_back(std::stoi(num_s[0]));
+            r_sl.push_back(std::stoi(num_s[1]));
+        }
+
+        // Close the file stream once all lines have been
+        // read.
+        inputfile.close();
+    }
+    else {
+        // Print an error message to the standard error
+        // stream if the file cannot be opened.
+        std::cerr << "Unable to open file!" << std::endl;
+        return ENOENT;
+    }
+    std::cout << "right: \n";
+    for (int i = 0; i< r_sl.size(); i++) {
+        std::cout << i << ": " << r_sl[i] << "\n";
+    }
+    int min_l;
+    int min_r;
+    int res = 0;
+    while (l_sl.size() != 0) {
+        min_l = l_sl[0];
+        for(int i = 0; i < l_sl.size(); i++) {
+            if(l_sl[i] < min_l) {
+                min_l = l_sl[i];
+            }
+        }
+        min_r = r_sl[0];
+        for(int i = 0; i < r_sl.size(); i++) {
+            if(r_sl[i] < min_r) {
+                min_r = r_sl[i];
+            }
+        }
+        l_sl.erase(find(l_sl.begin(), l_sl.end(), min_l));
+        r_sl.erase(find(r_sl.begin(), r_sl.end(), min_r));
+        res+= std::abs(min_l - min_r);
+    }
+    std::cout << "\n\n" << res << "\n\n";
+    
+
+}

day1/second.cpp

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+#include <algorithm>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <errno.h>
+
+std::vector<std::string> splitString(const std::string& str) {
+    std::istringstream iss(str);
+    std::vector<std::string> words;
+    std::string word;
+
+    while (iss >> word) {
+        words.push_back(word);
+    }
+
+    return words;
+}
+
+int main() {
+    std::ifstream inputfile("input");
+    std::string input;
+    
+    std::vector<int> l_sl;
+    std::vector<int> r_sl;
+    if (inputfile.is_open()) {
+        // Read each line from the file and store it in the
+        // 'line' variable.
+        std::string line;
+        std::vector<std::string> num_s;
+        while (std::getline(inputfile, line)) {
+            num_s = splitString(line);
+            l_sl.push_back(std::stoi(num_s[0]));
+            r_sl.push_back(std::stoi(num_s[1]));
+        }
+
+        // Close the file stream once all lines have been
+        // read.
+        inputfile.close();
+    }
+    else {
+        // Print an error message to the standard error
+        // stream if the file cannot be opened.
+        std::cerr << "Unable to open file!" << std::endl;
+        return ENOENT;
+    }
+    std::cout << "right: \n";
+    for (int i = 0; i< r_sl.size(); i++) {
+        std::cout << i << ": " << r_sl[i] << "\n";
+    }
+    int min_l;
+    int min_r;
+    int res = 0;
+    for (int i = 0; i  < l_sl.size(); i++ ) {
+        
+        
+        res+= l_sl[i] * std::count(r_sl.begin(), r_sl.end(), l_sl[i]);
+    }
+    std::cout << "\n\n" << res << "\n\n";
+    
+
+}

day2/day.cpp

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+#include <algorithm>
+#include <cstddef>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <errno.h>
+
+std::vector<std::string> splitString(const std::string& str) {
+    std::istringstream iss(str);
+    std::vector<std::string> words;
+    std::string word;
+
+    while (iss >> word) {
+        words.push_back(word);
+    }
+
+    return words;
+}
+
+int main() {
+    std::ifstream inputfile("example");
+    std::string input;
+    
+    int res = 0;
+    if (inputfile.is_open()) {
+
+        // Read each line from the file and store it in the
+        // 'line' variable.
+        std::string line;
+        std::vector<std::string> num_s;
+        std::vector<int> num;
+        
+        while (std::getline(inputfile, line)) {
+            num_s = splitString(line);
+            num.clear();
+            std::transform(num_s.begin(), num_s.end(), std::back_inserter(num), [](const std::string& s) {
+        return std::stoi(s);
+    });
+        bool safe = true;
+        int  old_n = -1;
+        for (int n : num) {
+            if(old_n == -1) {
+                old_n = n;
+                continue;
+            }
+            if ((old_n - n) > 2 || (old_n - n) > 0) {
+                safe = false;
+            }
+            old_n = n;
+        }
+        if (safe) {
+            res++;
+            continue;
+        }
+        safe = true;
+        old_n = -1;
+        for (int n : num) {
+            if(old_n == -1) {
+                old_n = n;
+                continue;
+            }
+            if ((old_n - n) <= -3 && (old_n - n) < 0) {
+                safe = false;
+            }
+            old_n = n;
+        }
+        if (safe) {
+            res++;
+        }
+        }
+
+            
+
+        // Close the file stream once all lines have been
+        // read.
+        inputfile.close();
+    }
+    else {
+        // Print an error message to the standard error
+        // stream if the file cannot be opened.
+        std::cerr << "Unable to open file!" << std::endl;
+        return ENOENT;
+    }
+
+    
+    
+    std::cout << "\n\n" << res << "\n\n";
+    
+    return 0;
+}