1 files changed, 30 insertions, 0 deletions
diff --git a/src/2018/day6/aoc.cpp b/src/2018/day6/aoc.cpp
index 585f144..5350b0e 100644
--- a/src/2018/day6/aoc.cpp
+++ b/src/2018/day6/aoc.cpp
@@ -1,5 +1,35 @@
 #include "aoc.h"
+#include <algorithm>
 
 namespace aoc2018 {
 
+int day6(line_view file) {
+  std::vector<coordinate> cs;
+  int maxx{INT32_MIN};
+  int maxy{INT32_MIN};
+
+  per_line(file, [&cs, &maxx, &maxy](line_view lv) {
+    coordinate c(lv);
+    cs.push_back(c);
+    maxx = std::max(maxx, c.x);
+    maxy = std::max(maxx, c.y);
+    return true;
+  });
+
+  std::sort(cs.begin(), cs.end());
+  space_board b{maxx + 1, maxy + 1};
+
+  for (size_t i = 0; i < cs.size(); i++) {
+    coordinate& c = cs[i];
+    auto& p = b.ps[c.y * b.rows + c.x];
+    p.id = i;
+    p.distance = 0;
+
+    std::vector<int> total = {0};
+    c.traverse([&total, &b, &c](int lap, int dir, coordinate x) { return true; },
+               [&total]() { return total[total.size() - 1] == 0; });
+  }
+  return 0;
 }
+
+} // namespace aoc2018