X108: seriesUp

Given n >= 0, create an array with the pattern {1,    1, 2,    1, 2, 3,    ... 1, 2, 3 .. n} (spaces added to show the grouping). Note that the length of the array will be 1 + 2 + 3 ... + n, which is known to sum to exactly n * (n + 1)/2.

Your Answer:

Reset

Practice a different Java exercise

Feedback

Your feedback will appear here when you check your answer.