veget_chicken的博客

链接：http://codeforces.com/problemset/problem/699/A 题目： There will be a launch of a new, powerful and unusual collider very soon, which located along a straight line. n particles will be launch

链接：http://codeforces.com/problemset/problem/579/D 题目： You are given n numbers a1, a2, ..., an. You can perform at most k operations. For each operation you can multiply one of the numbers b

链接：http://codeforces.com/problemset/problem/624/B 题目： You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following cond

链接：http://codeforces.com/problemset/problem/604/B 题目： Kevin Sun wants to move his precious collection of n cowbells from Naperthrill to Exeter, where there is actually grass instead of corn. B