Cube of Matrix Problem Statement

Given a 2D array 'MATRIX' of size M x N, find and return the value (i * i + j * j) for those elements where the sum of the cubes of its digits equals the element itself. Here, 'i' is the row index ranging from 0 to M-1, and 'j' is the column index ranging from 0 to N-1.

Note:

If no such element exists, return -1.

Input:

The first line contains an integer ‘T’ which represents the number of test cases. Each test case consists of two lines:

The first line contains two integers ‘M’ and ‘N’ indicating the number of rows and columns, respectively.

The second line contains ‘M’ * ’N’ space-separated integers, representing the elements of the 2D array 'MATRIX'.

Output:

For each test case, output the (i * i + j * j) value for elements where the sum of the cube of its digits equals the element itself.

Note:

You are not required to print the output, it is already handled. Just implement the function.

Constraints:

1

Question

Cube of Matrix Problem Statement

Given a 2D array 'MATRIX' of size M x N, find and return the value (i * i + j * j) for those elements where the sum of the cubes of its digits equals the element itself. Here, 'i' is the row index ranging from 0 to M-1, and 'j' is the column index ranging from 0 to N-1.

Note:

If no such element exists, return -1.

Input:

The first line contains an integer ‘T’ which represents the number of test cases. Each test case consists of two lines:

The first line contains two integers ‘M’ and ‘N’ indicating the number of rows and columns, respectively.

The second line contains ‘M’ * ’N’ space-separated integers, representing the elements of the 2D array 'MATRIX'.

Output:

For each test case, output the (i * i + j * j) value for elements where the sum of the cube of its digits equals the element itself.

Note:

You are not required to print the output, it is already handled. Just implement the function.

Constraints:

1 <= T <= 10
1 <= M <= 100
1 <= N <= 50
1 <= ELEMENT <= 10⁹
Time limit: 1 second

Accepted Answer

Given a 2D array, find elements where sum of cube of digits equals element itself and return (i * i + j * j) value.

Iterate through the 2D array and check if the sum of cube of digits equals the element itself.
Calculate (i * i + j * j) for such elements and return the values.
If no such element exists, return -1.

Cube of Matrix Problem Statement

Note:

Input:

Output:

Note:

Constraints:

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