739. Daily Temperatures - LeetCode Solution

class Solution:
    def dailyTemperatures(self, T: List[int]) -> List[int]:
        stack = []

        sl = []


        for i in range(len(T)-1, -1, -1):
            while len(stack) != 0 and T[stack[-1]] <= T[i]:
                stack.pop()

            if len(stack) ==0 :
                sl.append(0)
            else:
                sl.append(stack[-1] - i)

            stack.append(i)
            
        return sl[::-1]