摘要：题目： The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk and lab 阅读全文

摘要：题目： Oh those picky N (1 <= N <= 50,000) cows! They are so picky that each one will only be milked over some precise time interval A..B (1 <= A <= B <= 阅读全文

摘要：题目： The famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure. The floor has 200 rooms 阅读全文

摘要：题目： 通过悬崖的yifenfei，又面临着幽谷的考验—— 幽谷周围瘴气弥漫，静的可怕，隐约可见地上堆满了骷髅。由于此处长年不见天日，导致空气中布满了毒素，一旦吸入体内，便会全身溃烂而死。 幸好yifenfei早有防备，提前备好了解药材料（各种浓度的万能药水）。现在只需按照配置成不同比例的浓度。 现 阅读全文