Advent 2022 day2 & day3

advent_of_code_2022/day3/main1.cc

@@ -0,0 +1,26 @@
+#include <fmt/format.h>
+#include <iostream>
+#include <set>
+
+int main()
+{
+    int result = 0;
+
+    while (true)
+    {
+        std::string packing;
+        std::getline(std::cin, packing);
+        
+        char double_packed{};
+        std::set<char> c1{packing.begin(), packing.begin() + packing.size() / 2};
+        std::set<char> c2{packing.begin() + packing.size() / 2, packing.end()};
+        std::set_intersection(c1.begin(), c1.end(), c2.begin(), c2.end(), &double_packed);
+        
+        result += std::islower(double_packed) ? (double_packed - 'a' + 1) : (double_packed - 'A' + 27);
+
+        if (std::cin.eof())
+            break;
+    }
+
+    fmt::print("Result: {}\n", result);
+}