Add 2022 Day 1 solutions

2022/puzzle-01-01.cc

@@ -0,0 +1,29 @@
+//
+// Created by Matthew Gretton-Dann on 01/12/2022.
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+using Int = std::int64_t;
+
+auto main() -> int
+{
+  Int current_value{0};
+  Int max_value{0};
+  std::string line;
+  while (std::getline(std::cin, line)) {
+    if (line.empty()) {
+      max_value = std::max(max_value, current_value);
+      current_value = 0;
+    }
+    else {
+      Int incr{std::stoll(line)};
+      current_value += incr;
+    }
+  }
+  max_value = std::max(max_value, current_value);
+  std::cout << "Max value: " << max_value << '\n';
+  return EXIT_SUCCESS;
+}

2022/puzzle-01-02.cc

@@ -0,0 +1,37 @@
+//
+// Created by Matthew Gretton-Dann on 01/12/2022.
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <set>
+#include <string>
+
+using Int = std::int64_t;
+
+auto main() -> int
+{
+  Int current_value{0};
+  std::multiset<Int> values;
+
+  std::string line;
+  while (std::getline(std::cin, line)) {
+    if (line.empty()) {
+      values.insert(current_value);
+      current_value = 0;
+    }
+    else {
+      Int incr{std::stoll(line)};
+      current_value += incr;
+    }
+  }
+  values.insert(current_value);
+
+  Int top_three{0};
+  auto it = values.crbegin();
+  top_three += *it++;
+  top_three += *it++;
+  top_three += *it++;
+  std::cout << "Sum of values: " << top_three << '\n';
+  return EXIT_SUCCESS;
+}