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Given two strings like x=?hello? and y=?open?, remove any
character from string x which is also used in string y,
thus making the result x=?hll?.
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Answer Posted / newpolaris
bool IsInStr(char ch, const std::string& B)
{
return std::string::npos != B.find(ch);
}
// act fuction
std::string remove_same_char(const std::string& A, const
std::string& B)
{
typedef std::string::const_iterator cstr_const_it;
cstr_const_it iCSTR = A.begin();
// FOR OPTIMIZATION NRVO IS NEEDED
// ? IS POSSIBLE?
std::string _rt;
while ( iCSTR != A.end() )
{
if (!IsInStr(*iCSTR,B)) _rt+=*iCSTR;
iCSTR++;
}
return _rt;
}
int main()
{
std::string x = "hello";
const std::string y = "open";
x = remove_same_char(x, y);
}
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