Initialising 2d vector

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));

Source: techiedelight.com

Initialising 2d vector

// Initializing 2D vector "vect" with 
// values 
vector<vector<int> > vect{ { 1, 2, 3 }, 
                           { 4, 5, 6 }, 
                           { 7, 8, 9 } };

Initialzing a 2d vector in cpp

  // Create a vector containing n row and m columns
  vector<vector<int> > vec( n , vector<int> (m, 0));

Similar codes

0 vote171 views1 answer
Lexene token pairs of java codes
C++
0 vote147 views1 answer
Shift element to end of vector c++
C++
1 vote150 views2 answers
Substring function in c++
C++
-1 vote150 views1 answer
Equal elements in two arrays in c++
C++
1 vote138 views1 answer
Mpi_bcast
C++
0 vote142 views1 answer
Vector of vectors of pairs c++
C++
1 vote124 views1 answer
How to get double y dividing 2 integers in c++
C++
0 vote146 views1 answer
Check if a string is a prefix of another c++
C++
0 vote146 views1 answer
C++ suare
C++
0 vote154 views1 answer
Print value of data in c++
C++