Fitz~ - 博客园

2018年7月24日

摘要： E. XOR and Favorite Number time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output E. XOR and Fa 阅读全文

posted @ 2018-07-24 15:54 Fitz~ 阅读(475) 评论(0) 推荐(0) 编辑

Machine Learning CodeForces - 940F (带修改的莫队)

摘要： You come home and fell some unpleasant smell. Where is it coming from? You are given an array a. You have to answer the following queries: The Mex of 阅读全文

posted @ 2018-07-24 11:52 Fitz~ 阅读(311) 评论(0) 推荐(0) 编辑

2018年7月23日

Balanced Sequence（毒瘤啊）排序贪心 HDU多校

摘要： Problem Description Chiaki has n strings s1,s2,…,sn consisting of '(' and ')'. A string of this type is said to be balanced:+ if it is the empty strin 阅读全文

posted @ 2018-07-23 23:22 Fitz~ 阅读(205) 评论(0) 推荐(0) 编辑

HDU多校（Distinct Values）

摘要： Problem Description Chiaki has an array of n positive integers. You are told some facts about the array: for every two elements ai and aj in the subar 阅读全文

posted @ 2018-07-23 19:00 Fitz~ 阅读(565) 评论(1) 推荐(1) 编辑

2018年7月21日

poj 2288 Islands and Bridges

摘要： Description Given a map of islands and bridges that connect these islands, a Hamilton path, as we all know, is a path along the bridges such that it v 阅读全文

posted @ 2018-07-21 16:16 Fitz~ 阅读(138) 评论(0) 推荐(0) 编辑

run （牛客多校第二场）计数DP

摘要：链接：https://www.nowcoder.com/acm/contest/140/A来源：牛客网题目描述 White Cloud is exercising in the playground. White Cloud can walk 1 meters or run k meters pe 阅读全文

posted @ 2018-07-21 12:51 Fitz~ 阅读(434) 评论(0) 推荐(0) 编辑

HDU 3709 Balanced Number (数位DP)

摘要： A balanced number is a non-negative integer that can be balanced if a pivot is placed at some digit. More specifically, imagine each digit as a box wi 阅读全文

posted @ 2018-07-21 10:17 Fitz~ 阅读(273) 评论(0) 推荐(0) 编辑

bzoj1026 windy数数位DP

摘要： windy定义了一种windy数。不含前导零且相邻两个数字之差至少为2的正整数被称为windy数。 windy想知道，在A和B之间，包括A和B，总共有多少个windy数？ Input 包含两个整数，A B。 Output 一个整数 Sample Input【输入样例一】 1 10 【输入样例二】 2 阅读全文

posted @ 2018-07-21 10:17 Fitz~ 阅读(201) 评论(0) 推荐(0) 编辑

HDU4389:X mod f(x)(数位DP)

摘要： Here is a function f(x): int f ( int x ) { if ( x == 0 ) return 0; return f ( x / 10 ) + x % 10; } Now, you want to know, in a given interval [A, B] ( 阅读全文

posted @ 2018-07-21 10:16 Fitz~ 阅读(189) 评论(0) 推荐(0) 编辑

hdu 3652 B-number 数位DP

摘要： A wqb-number, or B-number for short, is a non-negative integer whose decimal form contains the sub- string "13" and can be divided by 13. For example, 阅读全文

posted @ 2018-07-21 10:15 Fitz~ 阅读(260) 评论(1) 推荐(0) 编辑

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