How to Concatenate Strings in Vector in C++ - Step by Step Examples

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How to Concatenate Strings in Vector in C++ ?

Answer

To concatenate strings in a vector in C++, you can use a combination of `std::accumulate` and `std::string`.

✐ Examples

1 Concatenate Strings in Vector

In this example,

We include the necessary header files for using std::accumulate and std::string.
We create a vector named strings containing multiple strings.
We use std::accumulate with an initial empty string and a lambda function to concatenate all the strings in the vector.
Finally, we print the concatenated string to standard output.

C++ Program

#include <iostream>
#include <vector>
#include <string>
#include <numeric>

int main() {
    std::vector<std::string> strings = {"Hello", "World", "in", "C++"};
    std::string concatenated_string = std::accumulate(strings.begin(), strings.end(), std::string());
    std::cout << concatenated_string << std::endl;
    return 0;
}

Output

HelloWorldinC++

Summary

In this tutorial, we learned How to Concatenate Strings in Vector in C++ language with well detailed examples.