1 files changed, 13 insertions, 10 deletions

diff --git a/2024/src/day05.cpp b/2024/src/day05.cpp
index 37d74c6..3ace14d 100644
--- a/2024/src/day05.cpp
+++ b/2024/src/day05.cpp
@@ -40,6 +40,7 @@ read_file(string_view filename)
         for ( string line; getline(input, line); ) {
                 pages.emplace_back(split(line));
         }
+
         return { rules, pages };
 }
 
@@ -56,10 +57,10 @@ is_valid(const vector<tuple<long, long>>& rules, const vector<long>& page)
                         return get<0>(rule) == num;
                 };
 
-                for ( auto it = find_if(rules.begin(), rules.end(), pred); it != rules.end(); it = find_if(it + 1, rules.end(), pred) ) {
-                        const auto foo = get<1>(*it);
-
-                        if ( processed.contains(foo) ) {
+                for ( auto it = find_if(rules.begin(), rules.end(), pred);
+                      it != rules.end();
+                      it = find_if(it + 1, rules.end(), pred) ) {
+                        if ( processed.contains(get<1>(*it)) ) {
                                 invalid = true;
                         }
                 }
@@ -84,13 +85,15 @@ part2(const vector<tuple<long, long>>& rules, const vector<vector<long>>& pages)
 {
         long sum = 0;
         for ( auto page: pages ) {
-                if ( !is_valid(rules, page) ) {
-                        ranges::sort(page, [&](auto lhs, auto rhs) -> bool {
-                                return ranges::find(rules, make_tuple(lhs, rhs)) != rules.end();
-                        });
-
-                        sum += page.at(page.size() / 2);
+                if ( is_valid(rules, page) ) {
+                        continue;
                 }
+
+                ranges::sort(page, [&rules](auto lhs, auto rhs) {
+                        return ranges::find(rules, make_tuple(lhs, rhs)) != rules.end();
+                });
+
+                sum += page.at(page.size() / 2);
         }
         cout << sum << endl;
 }