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 vote146 views1 answer
Passing a 2d array cpp
C++
1 vote120 views1 answer
Cpp sample code
C++
0 vote127 views1 answer
Pause the console c++
C++
1 vote122 views1 answer
Iff arduino
C++
1 vote124 views1 answer
Print all chrchetrs of a string c++
C++
0 vote140 views1 answer
String to vector char c++
C++
5 votes290 views2 answers
How to sort a string alphabetically in c++
C++
14 votes130 views5 answers
Find length of array c++
C++
0 vote129 views1 answer
Cuda shared array
C++
0 vote155 views1 answer
How to pass std::array with unknown size to function C++
C++