2022 day13 part1

1 files changed, 20 insertions, 2 deletions

diff --git a/src/2022/day13/aoc.cpp b/src/2022/day13/aoc.cpp
index 793d5eb..fb71da4 100644
--- a/src/2022/day13/aoc.cpp
+++ b/src/2022/day13/aoc.cpp
@@ -1,8 +1,26 @@
 #include "aoc.h"
+#include <iostream>
 
 namespace aoc2022 {
-std::pair<int, int> day13(line_view) {
-  return {0, 0};
+std::pair<int, int> day13(line_view file) {
+  int count{0};
+  int pair{0};
+  packet* ps[2] = {nullptr, nullptr};
+  per_line(file, [&pair, &count, &ps](line_view lv){
+    if (lv.length > 1) {
+      int i = pair % 2;
+      ps[i] = new packet;
+      const char* p = lv.line;
+      packet::load(&p, &ps[i]);
+      if (i == 1 && *(ps[0]) < *(ps[1])) {
+        printf("group[%d] is in right order\n", pair/2 + 1);
+        count += pair / 2 + 1;
+      }
+      pair += 1;
+    }
+    return true;
+  });
+  return {count, 0};
 }
 }