initialize 2d array c 2b 2b

1int nums[2][3]  =  { {16, 18, 20}, {25, 26, 27} };

1int** arr = new int*[10]; // Number of Students
2int i=0, j;
3for (i; i<10; i++) 
4	arr[i] = new int[5]; // Number of Courses
5/*In line[1], you're creating an array which can store the addresses
6  of 10 arrays. In line[4], you're allocating memories for the 
7  array addresses you've stored in the array 'arr'. So it comes out 
8  to be a 10 x 5 array. */

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

1int main()
2{
3    int arr[2][5] =
4    {
5        {1,8,12,20,25},
6        {5,9,13,24,26}
7    };
8}
9

1void printMatrix(array<array<int, COLS>, ROWS> matrix){
2for (auto row : matrix){
3//auto infers that row is of type array<int, COLS>
4for (auto element : row){
5cout << element << ' ';
6}
7cout << endl;
8}

1#include <array>
22 #include <iostream>
33
44 using namespace std;
55
66 //remember const!
77 const int ROWS = 2;
88 const int COLS = 3;
9
10
11int main(){
12 array<array<int, COLS>, ROWS> matrix = {
13 1, 2, 3,
14 4, 5, 6
15 };
16  
17  
18  return 0;
19}