I know how to increase values in an array from 'L' to 'R' by a constant no.

• first value by 1
• second value by 1
• third value by 1

but unable to figure out how to increment value like ..

• first value by 1
• second value by 2
• third value by 3 and so.....

Problem was :: Angry Cyborg

I tried few approaches like decreasing R + 1th element by R — L + 1 and so but they didn't seem to work.

I am stuck in this question, can u please provide any hint. You have my thanks !!