[UVA][bitmask+背包] 10032 - Tug of War
Problem F: Tug of War
A tug of war is to be arranged at the local office picnic. For
the tug of war, the picnickers must be divided into two teams. Each
person must be on one team or the other; the number of people on the
two teams must not differ by more than 1; the tota...