text: class Solution:
      def dailyTemperatures(self, T):
          """
          :type T: List[int]
          :rtype: List[int]
          """
          rls = [0] * len(T)
          m = {}
          for i in range(len(T)-1, -1, -1):
              if T[i] in m:
                  rls[i] = m[T[i]] - i
              for j in range(30, T[i]):
                  m[j] = i
          return rls
  