2d vector size c++
Create a 2D vector with a specific size in C++ using the following steps:
Step 1: Include the necessary library by adding #include <vector>
at the beginning of your code.
Step 2: Declare and initialize the 2D vector with the desired size using the following syntax:
std::vector<std::vector<int>> myVector(rows, std::vector<int>(columns));
Replace rows
with the number of rows and columns
with the number of columns you want for the 2D vector.
This will create a 2D vector with the specified size, where myVector
is the name of the vector, and int
can be replaced with the desired data type.