2020年5月6日
C. Yet Another Counting Problem
摘要： You are given two integers aa and bb, and qq queries. The ii-th query consists of two numbers lili and riri, and the answer to it is the number of int 阅读全文
posted @ 2020-05-06 23:03 DeaL57 阅读(171) 评论(0) 推荐(0)
C. Phoenix and Distribution
摘要： Phoenix has a string ss consisting of lowercase Latin letters. He wants to distribute all the letters of his string into kk non-empty strings a1,a2,…, 阅读全文
posted @ 2020-05-06 16:59 DeaL57 阅读(226) 评论(0) 推荐(0)