咸鱼の小窝

题目看这里~题意：懒得写了 想看的话可以找紫书58页习题3-7 或者 参考别人的博客（刚开始还以为是在给定的DNA中选出一个，但看样例怎么也不动，再看时才发现是构造一个新的DNA序列这也没什么好讲的 认真读题然后注意一下小细节（已用//注释出来AC代码：#include #include #include #include #include using namespace

题目链接：Codeforces Round #415 (Div. 2) BDescription： Summer holidays! Someone is going on trips, someone is visiting grandparents, but someone is trying to get a part-time job. This summer Noora decided

题目链接 ： Codeforces Round #436 (Div. 2) DDescription：Ivan has an array consisting of n elements. Each of the elements is an integer from 1 to n.Recently Ivan learned about permutations and their lexicogr