Everytime you feel that you have done enough of any topic and then boom here is the first question in hiring challange which you were not able to solve , yesterday on 18th jan 2023 from5-5:30 I had a test for IBM assosciate software eng for freshers , so the question title was "Largest prime elements from the diagonal elements"\nThe test time-30 minutes \nQuestion level according to me-Medium -hard\nStatus-Not solved \nNo.of questions-1\nquestion\nCreate a two dimensional array of integers numbers and find out largest prime number among all diagonal elements.\nE.G of 2-d array are below \n1 2 3 4\n4 3 2 1\n7 8 9 6\n13 5 4 3\n\nPrinciapl Diagonal 1,3,9,3\nSecondary Diagonal 4,2,8,13\nif anyone could tell me the approach for this i would really appreciate as after every non-successful interview i try to learn that problem.

Everytime you feel that you have done enough of any topic and then boom here is the first question in hiring challange which you were not able to solve , yester