diff --git a/src/day2.cpp b/src/day2.cpp
index 9f7be27..907f49d 100644
--- a/src/day2.cpp
+++ b/src/day2.cpp
@@ -24,6 +24,7 @@ int main() {
   }
   std::cout << "Part 1: " << part_1(v) << std::endl;
   std::cout << "Part 2: " << part_2(v) << std::endl;
+  return 0;
 }
 
 int64_t part_1(const std::vector<Data> &v) {
@@ -60,24 +61,10 @@ int64_t solve_n(int64_t n) {
 }
 
 int64_t part_2(const std::vector<Data> &v) {
-  int64_t ans{0};
-  for (auto d : v) {
+  return std::accumulate(v.begin(), v.end(), 0ll, [](int64_t acc, Data d) {
     for (auto n{d.min}; n <= d.max; ++n) {
-      ans += solve_n(n);
-    }
-  }
-
-  // todo: dead code, delete me, then inline solve_n
-  int64_t foobar = std::accumulate(v.begin(), v.end(), 0, [&ans](int64_t acc, Data d) {
-    for (auto n{d.min}; n <= d.max; ++n) {
-          acc += solve_n(n);
+      acc += solve_n(n);
     }
     return acc;
   });
-
-  // help please :)
-  // why ans != foobar? looks like same but not same
-  // stepping through with debugger, it even seems the same on last iteration of accumulate
-
-  return ans;
 }