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  1. Prepare
  2. C++
  3. Introduction
  4. Arrays Introduction
  5. Discussions

Arrays Introduction

  • ptgrimes235
     + 0 comments

    Similar solution, but only one call to copy (reverse copy) and utilizing the vector constructor instead.

    void flipInput(istream&, ostream&);

int main() {
    // Remove First Line
    cin.ignore(numeric_limits<streamsize>::max(), '\n');

    flipInput(cin, cout);

    return 0;
}

void flipInput(istream &in, ostream &out) {

    // Set up iterator over cin istream
    istream_iterator<int> input_begin(in);
    istream_iterator<int> input_end;

    // Set up iterator for cout ostream (space separation)
    ostream_iterator<int> output_begin(out, " ");

    // Reverse iterator not defined over istream (no -- operator)
    // Copy data with vector constructor
    vector<int> input_data(input_begin, input_end);

    // Reverse copy vector iterators, output to ostream iterator
    reverse_copy(input_data.begin(), input_data.end(), output_begin);
    
    return;
}