题目链接:String Similarity 题意: 首先题目定义了两个串的相似(串的构成是0.1),如果两个串存在对于一个下标k,它们的值一样,那么这两个串就相似 然后题目给你一个长度为2n-1的串,我们设下标从1开始,那么[1,n],[2,n+1],[3,n+2]...[n,2n-1]每一个都是一个长度为n的串,你需要找出来长度为n的串,使得这个串和[1,n],[2,n+1],[3,n+2]...[n,2n-1]这些串都相似 题解: 你会发现,只需要输出原长度为2n-1串的下标1,3,5,7…

CF1400-C. Binary String Reconstruction 题意: 对于一个二进制字符串\(s\),以及一个给定的\(x\),你可以通过一下操作来得到字符串\(w\): 对于字符串\(s\)的第\(i\)位, 1. 如果\(i-x\)有意义并且\(s[i-x]==1\)那么\(w[i]=1\) ; 2.如果\(i+x\)有意义并且\(s[i+x]==1\),那么\(w[i]=1\); 如果上面两条都不符合,那么\(w[i]=0\). 现在题目给出你字符串\(w\)和\(x\),…

题意:给你一个字符串\(s\),原字符串为\(w\),如果\(i>x\)且\(w_{i-x}=1\),那么\(s_{i}=1\),如果\(i+x\le n\)且\(w_{i+x}=1\),那么\(s_{i}=1\),否则\(s_{i}=0\).求\(w\)的一种可能的情况. 题解:对于\(s\)中的\(0\),我们知道,它左右两边距离\(x\)的地方一定都是\(0\),所以我们先假设\(w\)全为\(1\),然后再更新\(s_{i}\)为\(0\)的情况,最后判断一下\(1\)的情况在\(w\)…

问题 B: Binary String Matching 时间限制: 3 Sec  内存限制: 128 MB提交: 4  解决: 2[提交][状态][讨论版] 题目描述 Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text…

Binary String Matching 时间限制:3000 ms  |  内存限制:65535 KB 难度:3 描述     Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text string B is ‘10011…

Binary String Matching 时间限制:3000 ms  |  内存限制:65535 KB 难度:3   描述 Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text string B is ‘1001110…

Binary String Matching 时间限制:3000 ms  |  内存限制:65535 KB 难度:3   描述 Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text string B is ‘1001110…

use JSON qw/encode_json decode_json/ ; use Encode; my $data = [ { 'name' => 'Ken' , 'age' => 19 }, { 'name' => '测试' , 'age' => 25 } ]; print encode_utf8("'name' => '测试'"); print "\n"; my $json_out = encode_json ( $data )…

encode_json $json_text = encode_json $perl_scalar Converts the given Perl data structure to a UTF-8 encoded, binary string. This function call is functionally identical to: $json_text = JSON->new->utf8->encode($perl_scalar) 转换给定的perl数据结构到一个UTF-8编…

Binary String Matching 时间限制:3000 ms  |  内存限制:65535 KB 难度:3   描述 Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text string B is ‘1001110…