摘要： DescriptionEdward, a poor copy typist, is a user of the Dvorak Layout. But now he has only a QWERTY Keyboard with a broken Caps Lock key, so Edward n... 阅读全文

摘要： DescriptionEdward has an array A with N integers. He defines the beauty of an array as the summation of all distinct integers in the array. Now Edward... 阅读全文

摘要： DescriptionFor an upcoming programming contest, Edward, the headmaster of Marjar University, is forming a two-man team from N students of his universi... 阅读全文

摘要： Problem DescriptionAfter inventing Turing Tree, 3xian always felt boring when solving problems about intervals, because Turing Tree could easily have ... 阅读全文