"c++ vector resize" Code Answer's
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initialize 3d vector c++
vector<vector<vector<double>>> f(3, vector<vector<double>>(4, vector<double>(5)));
Source: stackoverflow.com
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.
Source: www.tutorialspoint.com
c++ vector resize
std::vector<int> vec = {1, 2, 3};
vec.resize(2); // {1, 2}
vec.resize(4); // {1, 2, 0, 0,}
vec.resize(6, 9); // {1, 2, 0, 0, 9, 9}
c++ vector extend vector
std::vector<int> a = {1, 2};
std::vector<int> b = {3, 4, 5};
a.insert(a.end(), b.begin(), b.end()); // a = {1, 2, 3, 4, 5}
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