摘要： Problem Description We define the distance of two strings A and B with same length n isdisA,B=∑i=0n−1|Ai−Bn−1−i|The difference between the two charact 阅读全文

摘要： Problem Description Give an array A, the index starts from 1.Now we want to know Bi=maxi∤jAj , i≥2. Input The first line of the input gives the number 阅读全文

摘要： Problem Description The school set up three elective courses, assuming that these courses are A, B, C. N classes of students enrolled in these courses 阅读全文