C++ algorithm for determining whether a string has unique characters (with complete source code)

C++ complete source code of algorithm to determine whether a string has unique characters (definition, implementation, main function test)

#include <iostream>
#include <cstring>
bool hasUniqueChars1( std::string str)
{
   
    
    
    int len = str

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Origin blog.csdn.net/it_xiangqiang/article/details/115251928