Initial commit

2015/puzzle-01-02.cc

@@ -0,0 +1,21 @@
+#include <cassert>
+#include <iostream>
+#include <string>
+
+int main(int argc, char **argv) {
+  for (std::string line; std::getline(std::cin, line);) {
+    int floor = 0;
+    std::string::size_type pos = 0;
+    for (auto c : line) {
+      ++pos;
+      assert(c == '(' || c == ')');
+      floor += (c == '(') - (c == ')');
+      if (floor == -1) {
+        break;
+      }
+    }
+    std::cout << pos << "\n";
+  }
+
+  return 0;
+}