Given an array temperatures of daily temperatures, return an array answer such that answer[i] is the number of days you must wait after the i-th day to get a warmer temperature. If there is no such day, set answer[i] = 0.
1 ≤ temperatures.length ≤ 10⁵30 ≤ temperatures[i] ≤ 100Keep a stack of INDICES whose warmer day is still unknown, with temperatures decreasing down the stack.