text: #include <bits/stdc++.h>
  
  using namespace std;
  
  vector<string> split_string(string);
  
  // Complete the jumpingOnClouds function below.
  int jumpingOnClouds(vector<int> c) {
    size_t ii{};
    int count{};
    while (ii < c.size() - 2) {
      if (c.at(ii + 2) == 0) {
        // Can we jump 2 clouds?
        ii += 2;
      } else {
        // We can NOT jump 2 clouds. Since you can always win the game, jump 1.
        ii += 1;
      }
      count++;
    }
    if (ii == c.size() - 2) {
      count++;
    }
    return count;
  }
  
  int main()
  {
      ofstream fout(getenv("OUTPUT_PATH"));
  
      int n;
      cin >> n;
      cin.ignore(numeric_limits<streamsize>::max(), '\n');
  
      string c_temp_temp;
      getline(cin, c_temp_temp);
  
      vector<string> c_temp = split_string(c_temp_temp);
  
      vector<int> c(n);
  
      for (int i = 0; i < n; i++) {
          int c_item = stoi(c_temp[i]);
  
          c[i] = c_item;
      }
  
      int result = jumpingOnClouds(c);
  
      fout << result << "\n";
  
      fout.close();
  
      return 0;
  }
  
  vector<string> split_string(string input_string) {
      string::iterator new_end = unique(input_string.begin(), input_string.end(), [] (const char &x, const char &y) {
          return x == y and x == ' ';
      });
  
      input_string.erase(new_end, input_string.end());
  
      while (input_string[input_string.length() - 1] == ' ') {
          input_string.pop_back();
      }
  
      vector<string> splits;
      char delimiter = ' ';
  
      size_t i = 0;
      size_t pos = input_string.find(delimiter);
  
      while (pos != string::npos) {
          splits.push_back(input_string.substr(i, pos - i));
  
          i = pos + 1;
          pos = input_string.find(delimiter, i);
      }
  
      splits.push_back(input_string.substr(i, min(pos, input_string.length()) - i + 1));
  
      return splits;
  }
  