Initial commit

2015/puzzle-12-01.cc

@@ -0,0 +1,31 @@
+#include <cassert>
+#include <functional>
+#include <iostream>
+#include <map>
+#include <regex>
+#include <set>
+#include <string>
+#include <variant>
+
+int parse_numbers(std::string const &s) {
+  static const std::regex re("-?\\d+");
+  std::string left = s;
+  std::smatch m;
+  int acc = 0;
+  while (std::regex_search(left, m, re)) {
+    acc += std::stoi(m.str(0));
+    left = m.suffix();
+  }
+
+  return acc;
+}
+
+int main(int argc, char **argv) {
+  int acc = 0;
+  for (std::string line; std::getline(std::cin, line);) {
+    acc += parse_numbers(line);
+  }
+
+  std::cout << "Accumulated value: " << acc << "\n";
+  return 0;
+}