2023/01.cpp

@@ -1,97 +0,0 @@
-#include <algorithm>
-#include <cctype>
-#include <cstdint>
-#include <iostream>
-#include <string_view>
-#include <string>
-#include <tuple>
-#include <tuple>
-#include <vector>
-
-#include <aocpp/Startup.hpp>
-
-namespace {
-
-using Input = std::vector<std::string>;
-
-/// @brief Parse the input stream as a newline-delimited list of lists of integers
-/// @param in input file parsed until EOF
-/// @return outer list of elves, inner lists of calories
-auto Parse(std::istream & in) -> Input
-{
-  Input results {};
-  std::move(
-    std::istream_iterator<std::string>{in},
-    std::istream_iterator<std::string>{},
-    std::back_inserter(results)
-  );
-  return results;
-}
-
-auto Part1(Input const& entries) -> std::int64_t
-{
-    std::int64_t acc = 0;
-    for (auto const& entry : entries)
-    {
-        auto lhs = std::find_if(entry.begin(),  entry.end(),  [](char c){ return std::isdigit(c); });
-        auto rhs = std::find_if(entry.rbegin(), entry.rend(), [](char c){ return std::isdigit(c); });
-        acc += 10 * (*lhs - '0') + (*rhs - '0');
-    }
-
-    return acc;
-}
-
-auto Part2(Input const& entries) -> std::int64_t
-{
-  static std::pair<char const*, std::int64_t> numbers[] = {
-    {"one", 1}, {"two", 2}, {"three", 3},
-    {"four", 4}, {"five", 5}, {"six", 6},
-    {"seven", 7}, {"eight", 8}, {"nine", 9},
-    {"0",0},{"1",1},{"2",2},{"3",3},{"4",4},
-    {"5",5},{"6",6},{"7",7},{"8",8},{"9",9}
-  };
-
-  std::int64_t acc = 0;
-  for (auto const& entry : entries)
-  {
-
-    std::int64_t lhs = 0;
-    std::int64_t rhs = 0;
-
-    for (auto cursor = entry.begin(); cursor < entry.end(); cursor++)
-    {
-      for (auto const [k,v] : numbers)
-      {
-        if (std::string_view{cursor, entry.end()}.starts_with(k)) {
-          lhs = v;
-          goto do_rhs;
-        }
-      }
-    }
-
-    do_rhs:
-    for (auto cursor = entry.end(); cursor --> entry.begin();)
-    {
-      std::int64_t lhs = 0;
-      for (auto const [k,v] : numbers)
-      {
-        if (std::string_view{cursor, entry.end()}.starts_with(k)) {
-          rhs = v;
-          goto next;
-        }
-      }
-    }
-    next:
-      acc += 10 * lhs + rhs;
-  }
-  return acc;
-}
-
-} // namespace
-
-auto Main(std::istream & in, std::ostream & out) -> void
-{
-  auto const entries = Parse(in);
-  out << "Part 1: " << Part1(entries) << std::endl;
-  out << "Part 2: " << Part2(entries) << std::endl;
-}

2023/04.cpp

@@ -50,12 +50,8 @@ auto CountWins(std::vector<Card>& cards) -> std::vector<std::size_t>
   {
     std::sort(card.mine.begin(), card.mine.end());
     std::sort(card.winners.begin(), card.winners.end());
-    auto const counter =
+    auto const c = std::set_intersection(card.mine.begin(), card.mine.end(), card.winners.begin(), card.winners.end(), Counter<std::size_t>{});
-      std::set_intersection(
+    result.push_back(c);
-        card.mine   .begin(), card.mine   .end(),
-        card.winners.begin(), card.winners.end(),
-        Counter<std::size_t>{});
-    result.push_back(counter);
   }
 
   return result;

2023/CMakeLists.txt

@@ -1,6 +1,3 @@
-add_executable(2023_01 01.cpp)
-target_link_libraries(2023_01 aocpp Boost::headers)
-
 add_executable(2023_02 02.cpp)
 target_link_libraries(2023_02 aocpp Boost::headers)