Advent of code 2022 day 6

advent_of_code_2022/day6/main.cc

@@ -0,0 +1,30 @@
+#include <fmt/format.h>
+#include <iostream>
+#include <set>
+
+int main()
+{
+    std::string transmission;
+    std::getline(std::cin, transmission);
+
+    for (std::size_t idx = 4; idx <= transmission.size(); ++idx)
+    {
+        // overkill but i'm lazy
+        std::set<char> marker{transmission.begin() + (idx - 4), transmission.begin() + idx};
+        if (marker.size() == 4)
+        {
+            fmt::print("Part 1 result: {}\n", idx);
+            break;
+        }
+    }
+
+    for (std::size_t idx = 14; idx <= transmission.size(); ++idx)
+    {
+        std::set<char> marker{transmission.begin() + (idx - 14), transmission.begin() + idx};
+        if (marker.size() == 14)
+        {
+            fmt::print("Part 2 result: {}\n", idx);
+            break;
+        }
+    }
+}