emplace

src/day2.cpp

@@ -19,7 +19,7 @@ int main() {
   char throwaway;
   std::vector<Data> v;
   while (file >> line.min >> throwaway >> line.max) {
-    v.push_back(line);
+    v.emplace_back(line);
     file >> throwaway;
   }
   std::cout << "Part 1: " << part_1(v) << std::endl;
@@ -67,7 +67,7 @@ int64_t part_2(const std::vector<Data> &v) {
     }
   }
 
-  // todo: dead code, delete me
+  // 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);

src/day3.cpp

@@ -12,7 +12,7 @@ int main() {
   std::string line;
   std::vector<std::string> v;
   while (std::getline(file, line)) {
-    v.push_back(line);
+    v.emplace_back(line);
   }
   std::cout << "Part 1: " << part_1(v) << std::endl;
   std::cout << "Part 2: " << part_2(v) << std::endl;