DescriptionThe citizens of Bytetown, AB, could not stand that the candidates in the mayoral electioncampaign have been placing their electoral posters at all places at their whim. The citycouncil has finally decided to build an electoral wall for
【題目描述】lxhgww最近收到了一個01序列,序列裡麵包含了n個數,這些數要麼是0,要麼是1,現在對於這個序列有五種變換操作和詢問操作:0 a b 把[a, b]區間內的所有數全變成01 a b 把[a, b]區間內的所有數全變成12 a b 把[a,b]區間內的所有數全部取反,也就是說把所有的0變成1,把所有的1變成03 a b 詢問[a, b]區間內總共有多少個14 a b 詢問[a,
DescriptionYou are working for Macrohard company in data structures department. After failing yourprevious task about key insertion you were asked to write a new data structure that wouldbe able to return quickly k-th order statistics in the array
Astronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let the level of a star be an amount of the stars that are not higher and not to the right of the given star. Astronomers
DescriptionChosen Problem Solving and Program design as an optional course, you are required to solve allkinds of problems. Here, we get a new problem.There is a very long board with length L centimeter, L is a positive integer, so we can
Painting some colored segments on a line, some previously paintedsegments may be covered by some the subsequent ones.Your task is counting the segments of different colors you cansee at last.InputThe first line of each data set contains exactly one