C - Swappable 题意: 给n个数,问有多少对数,1<=i<j<=N, A i A_i Ai!= A j A_j Aj,问有多少对数吗? 思路: 思路1: 先排序,枚举每个 a i a_i ai,然后看有多少个大于 a i a_i ai,大于 a i a_i ai的就是 a j a_j aj,不用找小于 a i a_i ai的,因为小于 a i a_i ai枚举的
链接:https://arxiv.org/pdf/2303.07354.pdf 目录 摘要 1 INTRODUCTION 2 RELATED WORK 2.1 Troll detection 2.2 Meta-learning 2.3 Few-shot text classification 3 PROBLEM STATEMENT 4 APPROACH 4.1 Stage On
EOJ Monthly 2020.9 Sponsored by TuSimple B. 健康监测计划 题目链接 规律题~ 对于 k k k 为偶数的时候,就是取 k 2 \frac{k}{2} 2k 次叶子(一次是指取当前图中的所有叶子结点,且每取一次叶子结点都要删去),当 k k k 为奇数的时候,多取一个结点,AC代码如下: #include <bits/stdc++.h>us
签到题 GLucky 7 in the Pocket Time Limit: 1 Second Memory Limit: 65536 KB BaoBao loves number 7 but hates number 4, so he refers to an integer as a "lucky integer" if is divisible by 7 but