2017 day7

1 files changed, 24 insertions, 0 deletions

diff --git a/src/2017/day7/aoc.cpp b/src/2017/day7/aoc.cpp
index 86e2e45..32a59ed 100644
--- a/src/2017/day7/aoc.cpp
+++ b/src/2017/day7/aoc.cpp
@@ -27,6 +27,27 @@ void depth(disc* d, int* dh) {
   }
 }
 
+void weight(disc* d, int* w) {
+  int total{0};
+  for (disc* x : d->subs) {
+    weight(x, &x->total);
+    total += x->total;
+  }
+  *w += d->weight + total;
+}
+
+void print(disc* d, int depth) {
+  for (int i = 0; i < depth; i++) {
+    printf(" ");
+  }
+  std::cout << d->name << "(" << d->total << "," << d->weight << ")" << std::endl;
+  if (depth < 3) {
+    for (disc* x : d->subs) {
+      print(x, depth + 1);
+    }
+  }
+}
+
 void day7(line_view file, char name[]) {
   std::unordered_map<line_view, disc*> ds;
   per_line(file, [&ds](line_view lv) {
@@ -52,6 +73,9 @@ void day7(line_view file, char name[]) {
     name[i++] = c;
     return true;
   });
+
+  weight(ds[x], &ds[x]->total);
+  // print(ds[x], 0);
 }
 
 } // namespace aoc2017