Write a C Program that asks the user to input a square matrix. The square matrix can be of any order, as input by the user (For example, 2x2, 3x3, etc.). The program finds and displays the sum of upper triangular matrix. Also, the program should be designed such that it is executed a number of times by the user, till the user wishes to continue using it, without termination. Also, appropriate prompts should be declared for any error handling.

Sample Output:

Enter no. of rows: 3

Enter no. of cols: 3

Enter the elements of 3x3 Matrix:

1 2 3

4 5 6

7 8 9

Sum of Upper Triangular Matrix is: 26

Do you wish to continue (Y/N)?: