initialize 2d vector as 0
vector<vector<bool>> visited(n, vector<bool> (n, 0));
initialize 2d vector of ints c++
auto M = 4; // num of rows auto N = 3; // num of cols in each row auto default_value = 1; // default value of all int elements std::vector<std::vector<int>> matrix(M, std::vector<int>(N, default_value));
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initialize 2D vector
vector<vector<int> > v2(8, vector<int>(5));
Source: www.dcs.bbk.ac.uk
initialising 2d vector
// Initializing 2D vector "vect" with // values vector<vector<int> > vect{ { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };