Time solutions

2023/xmaslib/solution/solution.cpp

@@ -1,25 +1,35 @@
 #include "solution.hpp"
 
+#include <chrono>
 #include <format>
 #include <fstream>
 #include <iostream>
 #include <sstream>
 #include <stdexcept>
 
+#include <unistd.h>
+
 namespace xmas {
 
 void solution::run() {
   std::cout << "Day 1" << std::endl;
+
   try {
-    const auto p1 = this->part1();
-    std::cout << " Result 1: " << p1 << '\n';
+    const auto start = std::chrono::high_resolution_clock::now();
+    const auto result = this->part1();
+    const auto elapsed = std::chrono::high_resolution_clock::now() - start;
+
+    std::cout << std::format(" Result 1: {} ({} μs)\n", result, std::chrono::duration_cast<std::chrono::microseconds>(elapsed).count());
   } catch (std::runtime_error &err) {
     std::cerr << "Part 1 failed with message: " << err.what() << std::endl;
   }
 
   try {
-    const auto p2 = this->part2();
-    std::cout << " Result 2: " << p2 << '\n';
+    const auto start = std::chrono::high_resolution_clock::now();
+    const auto result = this->part2();
+    const auto elapsed = std::chrono::high_resolution_clock::now() - start;
+
+    std::cout << std::format(" Result 2: {} ({} μs)\n", result, std::chrono::duration_cast<std::chrono::microseconds>(elapsed).count());
   } catch (std::runtime_error &err) {
     std::cerr << "Part 2 failed with message: " << err.what() << std::endl;
   }