Question

How to remove spaces from string in C++

Answer 1

#include <iostream>
#include <algorithm>

int main() {
    std::string s = "CPP is a, general purpose programming language.";

    s.erase(std::remove(s.begin(), s.end(), ' '), s.end());

    std::cout << s;
    
    return 0;
}




/*
run:

CPPisa,generalpurposeprogramminglanguage.

*/

 

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Answer 2

#include <iostream>
#include <algorithm>

int main() {
    std::string s = "CPP is a, general purpose programming language.";

    s.erase(std::remove_if(s.begin(), s.end(), isspace), s.end());
    
    std::cout << s;
    
    return 0;
}




/*
run:

CPPisa,generalpurposeprogramminglanguage.

*/

 

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