lab_function.cpp

#include <vector>
#include <iostream>
#include <sstream>
#include <string>
#include <stdexcept>
using namespace std;

// COMPLETE ME
// PUT THE leap_year() FUNCTION THAT YOU WRITE HERE

int main()
{
    int errors = 0;
    for( int year=1800; year<2101; ++year )
    {    
        // deliberate gibberish so that you can't just copy the answer
        bool correctAnswer = (!(year%('b'+'e'+'c'+'f'))&&!(year%'d'))||(!(year&('R'-'O'/*+'Q'+'T'*/))&&(year%'d'))||(!(year%('d'+'d'+'d'+'d'))&&(year&('*'-'\''))&&(year%('N'-'\'')));
        bool yourAnswer = leap_year( year );

        if( correctAnswer != yourAnswer )
        {
            cerr << "Error! leap_year() says " << year 
                << (yourAnswer ? " is " : " is not ") << "a leap year but it "
                << (correctAnswer ? " is" : " is not") << "." << endl;

            errors++;
        }
    }

    if( errors == 0 )
        cout << "Congratulations, no errors" << endl;
    else
        cout << "Uh oh, " << errors << " error/s remain" << endl;

    return errors;
}