739. Daily Temperatures

Medium

30 Points

Array

Stack

Monotonic Stack

Given an array of integers temperatures represents the daily temperatures, return an array answer such that answer[i] is the number of days you have to wait after the ith day to get a warmer temperature. If there is no future day for which this is possible, keep answer[i] == 0 instead.

Examples

Example 1

Input: temperatures = [73,74,75,71,69,72,76,73] Output: [1,1,4,2,1,1,0,0]

Example 2

Input: temperatures = [30,40,50,60] Output: [1,1,1,0]

Example 3

Input: temperatures = [30,60,90] Output: [1,1,0]

Constraints

1 <= temperatures.length <= 105
30 <= temperatures[i] <= 100