Rename single digit days

d3/main.cxx

@@ -1,61 +0,0 @@
-#include <iostream>
-#include <regex>
-
-using std::cout, std::endl;
-
-constexpr const char content[] = {
-    #embed "input.txt"
-};
-
-int part_1() {
-    std::string input = std::string(content);
-
-    auto acc{0};
-    std::regex re{"mul\\((\\d+),(\\d+)\\)"};
-    std::smatch match;
-
-    while (std::regex_search(input, match, re)) {
-        int a = std::stoi(match[1].str());
-        int b = std::stoi(match[2].str());
-        acc += a * b;
-
-        input = match.suffix().str(); 
-    } 
-
-    return acc;
-}
-
-int part_2() {
-    std::string input = std::string(content);
-
-    auto acc{0};
-    std::regex re{"do\\(\\)|don't\\(\\)|mul\\((\\d+),(\\d+)\\)"};
-    std::smatch match;
-    bool enabled{true};
-
-    while(std::regex_search(input, match, re)) {
-        if (match[0].str() == "do()") {
-            enabled = true;
-        } else if (match[0].str() == "don't()") {
-            enabled = false;
-        } else if (enabled) {
-                int x = std::stoi(match[1].str());
-                int y = std::stoi(match[2].str());
-                acc += x * y;
-        } 
-        input = match.suffix().str();
-    }
-    
-    return acc;
-} 
-
-int main() {
-    std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
-    auto p1_val = part_1();
-    std::chrono::steady_clock::time_point middle = std::chrono::steady_clock::now();
-    auto p2_val = part_2();
-    std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
-    cout << "Part 1: " << p1_val << " (" << std::chrono::duration_cast<std::chrono::microseconds>(middle - begin).count() << "µs)" << endl;  
-    cout << "Part 2: " << p2_val << " (" << std::chrono::duration_cast<std::chrono::microseconds>(end - middle).count() << "µs)" << endl;
-    return 0;
-}