Magic Grid Time Limit:336MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Description Thanks a lot for helping Harry Potter in finding the Sorcerer's Stone of Immortality in October. Did we not tell you that it was just an online game ? uhhh!…

Goblin Wars Time Limit:432MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Description The wizards and witches of Hogwarts School of Witchcraft found Prof. Binn's History of Magic lesson to be no less boring than you found your own history cla…

Save the Students Time Limit:134MS     Memory Limit:0KB     64bit IO Format:%lld & %llu   Description Hogwarts is under attack by the Dark Lord, He-Who-Must-Not-Be-Named. To protect the students, Harry Potter must cast protective spells so that those…

Array Diversity Time Limit:404MS     Memory Limit:0KB     64bit IO Format:%lld & %llu   Description Here we go! Let's define the diversity of a list of numbers to be the difference between the largest and smallest number in the list. For example, the…

104. Little shop of flowers time limit per test: 0.25 sec. memory limit per test: 4096 KB 问题: 你想要将你的花窗安排得最具美感.有F束花,每一束花都不一样,至少有F个按顺序排成一行的花瓶.花瓶从左到右,依次编号1-V.而花放置的位置是可以改变的,花依次编号1到F.花的序号有一个特征,即是序号决定了花束出现在花瓶里的顺序.例如,有两束花编号i和j,满足i<j,那么i所在的花瓶一定要在j所在花瓶的左边,即是i…

233 Matrix Time Limit:5000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Description In our daily life we often use 233 to express our feelings. Actually, we may say 2333, 23333, or 233333 ... in the same meaning. And here is the quest…

Number Sequence Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Problem Description There is a special number sequence which has n+1 integers. For each number in sequence, we have two rules: ● a i ∈ [0,n] ● a i ≠ a j ( i…

Dice Time Limit:1000MS     Memory Limit:65536KB Description There are 2 special dices on the table. On each face of the dice, a distinct number was written. Consider a 1.a 2,a 3,a 4,a 5,a 6 to be numbers written on top face, bottom face, left face, r…

Game Time Limit:1000MS     Memory Limit:65536KB Description Here is a game for two players. The rule of the game is described below: ● In the beginning of the game, there are a lot of piles of beads. ● Players take turns to play. Each turn, player ch…

Post Robot Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K Problem Description DT is a big fan of digital products. He writes posts about technological products almost everyday in his blog. But there is such few comments of his…