day8 done

1 files changed, 19 insertions, 11 deletions

diff --git a/src/2015/day8/aoc.cpp b/src/2015/day8/aoc.cpp
index feae5dc..be789d2 100644
--- a/src/2015/day8/aoc.cpp
+++ b/src/2015/day8/aoc.cpp
@@ -5,43 +5,51 @@ namespace aoc2015 {
 // \\ -> 1
 // \" -> 1
 // \xXX -> 1
-int count_day8(line_view lv) {
-  int total = 0;
+std::pair<int, int> count_day8(line_view lv) {
+  int t1 = 0;
+  int t2 = 0;
   const char* p1 = lv.line;
   const char* p2 = lv.line + lv.length;
   const char* p = p1;
   while (p != p2) {
     if (*p != '\\' || p == p2 - 1) {
-      total += 1;
+      t1 += 1;
+      t2 += 1;
       p++;
       continue;
     } else {
       if (*(p + 1) == '\\' || *(p + 1) == '"') {
-        total += 1;
+        t1 += 1;
+        t2 += 4;
         p += 2;
         continue;
       }
       if (*(p + 1) == 'x') {
-        total += 1;
+        t1 += 1;
+        t2 += 5;
         p += 4;
         continue;
       }
-      total += 1;
+      t1 += 1;
+      t2 += 1;
       p++;
     }
   }
-  return total;
+  return {t1, t2};
 }
 
-int day8(line_view file) {
+std::pair<int, int> day8(line_view file) {
   int t1 = 0;
   int t2 = 0;
-  per_line(file, [&t1, &t2](line_view lv) {
+  int t3 = 0;
+  per_line(file, [&t1, &t2, &t3](line_view lv) {
     t1 += lv.length - 1;
-    t2 += count_day8({lv.line + 1, lv.line + lv.length - 2});
+    auto p = count_day8({lv.line + 1, lv.line + lv.length - 2});
+    t2 += p.first;
+    t3 += p.second + 6;
     return true;
   });
-  return t1 - t2;
+  return {t1 - t2, t3 - t1};
 }
 
 } // namespace aoc2015