5 files changed, 19 insertions, 0 deletions
diff --git a/src/2022/day4/README.md b/src/2022/day4/README.md
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/2022/day4/README.md
diff --git a/src/2022/day4/aoc.cpp b/src/2022/day4/aoc.cpp
new file mode 100644
index 0000000..535a5df
--- /dev/null
+++ b/src/2022/day4/aoc.cpp
@@ -0,0 +1,10 @@
+#include "aoc.h"
+#include <algorithm>
+#include <vector>
+
+namespace aoc2022 {
+std::pair<int, int> day4(line_view file) {
+  return {0, 0};
+}
+
+} // namespace aoc2022
diff --git a/src/2022/day4/aoc.h b/src/2022/day4/aoc.h
new file mode 100644
index 0000000..3b8a1ec
--- /dev/null
+++ b/src/2022/day4/aoc.h
@@ -0,0 +1,8 @@
+#include "common.h"
+
+
+namespace aoc2022 {
+
+std::pair<int, int> day4(line_view file);
+
+}
diff --git a/src/2022/day4/input b/src/2022/day4/input
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/2022/day4/input
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5e2facc..d2963e7 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -85,6 +85,7 @@ set(SOLUTION_FILES
   "2022/day1/aoc.cpp"
   "2022/day2/aoc.cpp"
   "2022/day3/aoc.cpp"
+  "2022/day4/aoc.cpp"
 )
 
 add_library(solution SHARED ${SOLUTION_FILES})