Dynamic Matrix

Hard Pointers PRO

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Problem Statement

Write a C++ program allocating a dynamic 2×2 matrix using pointers-to-pointers (`int **`), populating values, and deallocating memory properly.

Input Format

4 integers representing a 2x2 matrix.

Output Format

Print 2x2 matrix elements row by row.

Constraints

-100 <= Elements <= 100

Sample Input

1 2
3 4

Sample Output

1 2
3 4

Explanation

Manages dynamic 2D arrays using an array of pointer rows.

Starter Code

#include <iostream>

int main() {
    int **mat = new int*[2];
    for (int i = 0; i < 2; i++) mat[i] = new int[2];

    for (int i = 0; i < 2; i++) {
        for (int j = 0; j < 2; j++) {
            std::cin >> mat[i][j];
        }
    }

    // Write your code here to print matrix and free memory
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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