Function to Calculate Row and Column Number provided pixel Number

                //To calculate Row and Column details given image im and pixel number p
    //Example: im = imread('test_1.png');
    //         pix2rc(im,312)
    //Output displayed on console ------- 
    //Row Number = 2, Column no.=56
    //  ans  =     2.    56.  
    //
    //          pix2rc(im,65539)
    //          Pixel value is outside Range
    //ans  =      []