Question

How to remove all spaces from string in C++

Answer 1

#include <iostream>
#include <algorithm>

int main()
{
    std::string s = "Remove all spaces from string in C++";
    
    s.erase(std::remove(s.begin(), s.end(), ' '), s.end());
    
    std::cout << s << std::endl;
 
    return 0;
    
}


/*
run:

RemoveallspacesfromstringinC++

*/

 

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Answer 2

#include <iostream>
#include <algorithm>

int main()
{
    std::string s = "Remove all spaces from string in C++";
    
    s.erase(std::remove_if(s.begin(), s.end(), [](unsigned char ch){
        return std::isspace(ch);
    }), s.end());
    
    std::cout << s << std::endl;
 
    return 0;
    
}


/*
run:

RemoveallspacesfromstringinC++

*/

 

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