How To Print A Vector In C++ Without Loop

Printing a vector is an important task in C++ programming. There are different ways to print a vector in C++ but the most common is by using a for loop. However, there is a faster way to do it without using a for loop. In this tutorial, we will learn how to print a vector in C++ without a loop.

Steps:

Step 1: Include libraries

The first step is to include the iostream and vector libraries in your C++ code. You can do this by including the following statements at the beginning of your code.

#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

Step 2: Create the vector

The next step is to create the vector that you want to print. For the purpose of this tutorial, we will create a vector of integers named “myVector” and we will add some values to it.

std::vector<int> myVector = {1,2,3,4,5,6};

Step 3: Print the vector

Now, we can print the vector without using a loop. We can use the copy function from the algorithm library to copy the vector contents to the output stream. This will print the entire vector in a single line of code.

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std::copy(myVector.begin(), myVector.end(), std::ostream_iterator<int>(std::cout, " "));

Step 4: Final code

Here is the final code for printing a vector in C++ without a loop.

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#include <iostream>
#include <vector>
#include <algorithm>
 
int main() {
    std::vector<int> myVector = {1,2,3,4,5,6};
    std::copy(myVector.begin(), myVector.end(), std::ostream_iterator<int>(std::cout, " "));
    return 0;
}

Output:

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Conclusion:

Printing a vector in C++ without using a loop can be achieved using the copy function from the algorithm library. This method is faster and more concise than using a for loop. By following the steps outlined in this tutorial, you can easily print a vector in C++ without a loop.