摘要：
Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea ... 阅读全文
摘要：
n sprinklers are installed in a horizontal strip of grass l meters long and w meters wide. Each sprinkleris installed at the horizontal center line o... 阅读全文
摘要：
Given several segments of line (int the X axis) with coordinates [Li, Ri]. You are to choose the minimalamount of them, such they would completely cov... 阅读全文
摘要：
题意： My birthday is coming up and traditionally I’m serving pie. Not just one pie, no, I have a numberN of them,of various tastes and of various sizes.... 阅读全文