Codefroces B. Hamming Distance Sum

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Codefroces B. Hamming Distance Sum

Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some string s is denoted |s|. The Hamming distance between two strings s and t of equal length is defined as , where si is the i-th character of…

Codeforces Round #336 (Div. 2) B. Hamming Distance Sum 计算答案贡献+前缀和

B. Hamming Distance Sum Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some string s is denoted |s|. The Hamming distance between two strings s and t of equal length is defined as , where si…

Codeforces Round #336 (Div. 2)B. Hamming Distance Sum 前缀和

B. Hamming Distance Sum 题目连接: http://www.codeforces.com/contest/608/problem/A Description Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some string s is denoted |s|. The Hamming distance betw…

Codeforces 608B. Hamming Distance Sum 模拟

B. Hamming Distance Sum time limit per test: 2 seconds memory limit per test:256 megabytes input: standard input output: standard output Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some str…

关于前缀和，A - Hamming Distance Sum

前缀和思想 Genos needs your help. He was asked to solve the following programming problem by Saitama: The length of some string s is denoted |s|. The Hamming distance between two strings s and t of equal length is defined as , where si is the i-th charact…

Codeforces Round #336 Hamming Distance Sum

题目: http://codeforces.com/contest/608/problem/B 字符串a和字符串b进行比较,以题目中的第一个样例为例,我刚开始的想法是拿01与00.01.11.11从左到右挨个比较,希望能找到一些规律,结果并没有... 其实,如果我们能从整个比较过程来看这个问题,整个过程就没有那么难.题目要求的东西,其实就是a字符串和b字符串子串每次比较的不同的个数的总和,当我们像上面那个思路,拿a字符串每次移动一位,和b进行比较的时候,从整个过程来看,就相当于a的每一个元素从前…