From baf9117b3f11a03f21f37a5abb3ef105dff4652f Mon Sep 17 00:00:00 2001
From: kaiwu <kaiwu2004@gmail.com>
Date: Sun, 4 Dec 2022 13:31:56 +0800
Subject: 2022 day4

---
 src/2022/day4/aoc.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/2022/day4/aoc.cpp')

diff --git a/src/2022/day4/aoc.cpp b/src/2022/day4/aoc.cpp
index 535a5df..0ba53e2 100644
--- a/src/2022/day4/aoc.cpp
+++ b/src/2022/day4/aoc.cpp
@@ -4,7 +4,15 @@
 
 namespace aoc2022 {
 std::pair<int, int> day4(line_view file) {
-  return {0, 0};
+  int c1{0}, c2{0};
+  per_line(file, [&c1, &c2](line_view lv){
+      apair p;
+      p.load(lv);
+      c1 += (int) p.covered();
+      c2 += (int) p.overlap();
+      return true;
+  });
+  return {c1, c2};
 }
 
 } // namespace aoc2022
-- 
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