codeforces 760E or 759C 【线段树维护后缀和】
摘要:
C. Nikita and stack time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output C. Nikita and stack 阅读全文
posted @ 2017-01-26 21:45 Jstyle 阅读(454) 评论(0) 推荐(0) 编辑