resize in vector code example
Example 1: when a vector in c++ is resized what happens to the elements of the vector
The C++ function std::vector::resize() changes the size of vector. If n is smaller than current size then extra elements are destroyed.
If n is greater than current container size then new elements are inserted at the end of vector.
If val is specified then new elements are initialed with val.
Example 2: c++ vector resize
std::vector<int> vec = {1, 2, 3};
vec.resize(2);
vec.resize(4);
vec.resize(6, 9);