2319. Check if Matrix Is X-Matrix

Problem Problem_Link My Attempt Brainstorming X-Matrix All the elements in the diagonals of the matrix are non-zero. All other elements are 0. So, it need to have 0 in all positions. num, 0,0,0,num 0,num,0,num,0 0,0,num,0,0 0,num,0,num,0 num...