you give integer array num consist n element integer kFind contiguous subarray length equal k maximum average value return value any answer calculation error 105 accept Example 1input num 11256503 k 4Output 1275000explanation maximum average 12 5 6 50 4 51 4 1275example 2input num 5 k 1output 500000 Constraintsn numslength1 k n 105104 numsi 104