message: Update super-washing-machines.cpp
diff: @@ -10,9 +10,9 @@ public:
  }
  int result = 0, target = sum / machines.size(), curr = 0;
  - for (auto i = 0; i < machines.size(); ++i) {
  - curr += machines[i] - target;
  - result = max(result, max(machines[i] - target, abs(curr)));
  + for (const auto& n : machines) {
  + curr += n - target;
  + result = max(result, max(n - target, abs(curr)));
  }
  return result;
  }
  