fkillrra's note fkillrra's note

URL : https://code.google.com/codejam/contest/438101/dashboardProblem You are hosting a party with G guests and notice that there is an odd number of guests! When planning the party you deliberately invited only couples and gave each couple a unique number C on their invitation. You would like to single out whoever came alone by asking all of the guests for their invitation numbers. InputThe fir..