B. Math time limit per test:1 second memory limit per test:256 megabytes Description: JATC's math teacher always gives the class some interesting math problems so that they don't get bored. Today the problem is as follows. Given an integer n, you can…
D. Fun with Integers 题目链接:https://codeforc.es/contest/1062/problem/D 题意: 给定一个n,对于任意2<=|a|,|b|<=n,如果a->b,则存在一个x,使得x*a=b 或者 x*b=a,那么最终答案就是|x|的总和.相同的a,b不能被重复转化. 题解: 哎,这个复制过来格式各种错误,还是就这样吧... 我们发现当a->b时,-a->b,-a->-b,a->-b中的x对答案的贡献都是一样的,所以我…
C. Banh-mi time limit per test:1 second memory limit per test:256 megabytes 题目链接:https://codeforc.es/contest/1062/problem/C Description: JATC loves Banh-mi (a Vietnamese food). His affection for Banh-mi is so much that he always has it for breakfast.…
A. A Prank time limit per test 1 second memory limit per test 256 megabytes 题目链接:https://codeforc.es/contest/1062/problem/A Description: JATC and his friend Giraffe are currently in their room, solving some problems. Giraffe has written on the b…