onlyblues

摘要： 摆放棋子 给定一个 $n \times m$ 的国际象棋棋盘（即一个 $n \times m$ 的方格矩阵）。 我们知道传统国际象棋中，主教（象）的行走规则是只能斜走，格数不限，但不可转向。 现在，我们对主教进行了修改，不妨称加强后的主教为大主教。 大主教仍然只能斜走，格数不限，但是当其走到棋盘边缘 阅读全文

摘要： D. Yet Another Problem You are given an array $a$ of $n$ integers $a_1,a_2,a_3, \ldots, a_n$. You have to answer $q$ independent queries, each consist 阅读全文

摘要： C. Swap Game Alice and Bob are playing a game on an array $a$ of $n$ positive integers. Alice and Bob make alternating moves with Alice going first. I 阅读全文

摘要： 构造数组 请你构造一个长度为 $n$ 的正整数数组 $a_1,a_2, \ldots ,a_n$。 我们会给出一个长度为 $n−1$ 的由 $<$、$>$、$=$ 组成的字符串 $s_1s_2 \ldots s_{n−1}$ 用于约束你的构造： 如果 $s_i$ 为 $<$，则表示你构造的数组需满足 阅读全文

摘要： Next Greater Element IV You are given a 0-indexed array of non-negative integers nums . For each integer in nums , you must find its respective second 阅读全文

摘要： C1. Sheikh (Easy version) This is the easy version of the problem. The only difference is that in this version $q=1$. You are given an array of intege 阅读全文

摘要： D. Factorial Divisibility You are given an integer $x$ and an array of integers $a_1,a_2, \dots ,a_n$. You have to determine if the number $a_1!+a_2!+ 阅读全文

摘要： F. MEX vs MED You are given a permutation $p_1,p_2, \dots ,p_n$ of length $n$ of numbers $0, \dots ,n−1$. Count the number of subsegments $1 \leq l \l 阅读全文

摘要： E. FTL Monocarp is playing a video game. In the game, he controls a spaceship and has to destroy an enemy spaceship. Monocarp has two lasers installed 阅读全文

摘要： C1. Make Nonzero Sum (easy version) This is the easy version of the problem. The difference is that in this version the array can not contain zeros. Y 阅读全文