initialising 2d array c++ code example
Example 1: declaring 2d dynamic array c++
int** arr = new int*[10]; // Number of Students
int i=0, j;
for (i; i<10; i++)
arr[i] = new int[5]; // Number of Courses
/*In line[1], you're creating an array which can store the addresses
of 10 arrays. In line[4], you're allocating memories for the
array addresses you've stored in the array 'arr'. So it comes out
to be a 10 x 5 array. */
Example 2: initialize 2d array c++
#include <array>
2 #include <iostream>
3
4 using namespace std;
5
6 //remember const!
7 const int ROWS = 2;
8 const int COLS = 3;
int main(){
array<array<int, COLS>, ROWS> matrix = {
1, 2, 3,
4, 5, 6
};
return 0;
}