[c++] How to get the number of characters in a std::string?

Simplest way to get length of string without bothering about std namespace is as follows

string with/without spaces

#include <iostream>
#include <string>
using namespace std;
int main(){
    string str;
    getline(cin,str);
    cout<<"Length of given string is"<<str.length();
    return 0;
}

string without spaces

#include <iostream>
#include <string>
using namespace std;
int main(){
    string str;
    cin>>str;
    cout<<"Length of given string is"<<str.length();
    return 0;
}

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