开始刷DP 。。
【背包问题】
2602 Bone Collector
1114 Piggy-Bank
1203 I NEED A OFFER!
1171 Big Event in HDU
1059 Dividing
2844 Coins
2191 悼念512汶川大地震遇难同胞——珍惜现在，感恩生活
2159 FATE
1561 The more, The Better
1011 Starship Troopers
2639 Bone Collector II
3033 I love sneakers!
2955 Robberies
2546 饭卡
2415 Bribing FIPA
1712 ACboy needs your help
3535 AreYouBusy
3449 Consumer