How to make a 2d vector in c++

// Create a vector containing n 
//vectors of size m, all u=initialized with 0
vector<vector<int> > vec( n , vector<int> (m, 0));

2d vector c++ declaration

vector< vector<int>> a(rows, vector<int> (cols));

Source: stackoverflow.com

Initialising 2d vector

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

Similar codes

10 votes156 views3 answers
Remove duplicates from vector c++
C++
1 vote145 views1 answer
C++ copy file to another directory
C++
0 vote189 views1 answer
For statement in c++
C++
0 vote153 views1 answer
Cmd color text c++
C++
1 vote110 views1 answer
Add element to start of vector c++
C++
0 vote146 views1 answer
Macro c++
C++
5 votes154 views2 answers
C++ return multiple values
C++
0 vote138 views1 answer
Crypto npm random bytes
C++
1 vote184 views2 answers
C++ inherit from class template
C++
0 vote186 views1 answer
How to traverse through vector pair
C++