#include <iostream>#include <string>#include <cstring>using namespace std;void add(unsigned int count[],char c){    if(c <= ‘Z‘){        ++count[c - ‘A‘];    }    else{        ++count[c - ‘a‘];    }    }bool isBrother(const string& wa,const string& wb){    if(wa.length() != wb.length()){        return false;    }    unsigned int counta[26],countb[26];    memset(counta,0,26*4);    memset(countb,0,26*4);    for(int i = 0; i < wa.length(); ++i){        add(counta,wa.at(i));        add(countb,wb.at(i));    }    for(int i = 0; i < 26; ++i){        if(counta[i]!=countb[i]){            return false;        }    }    return true;}