problem739

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Published: Nov 27, 2021 License: MIT Imports: 0 Imported by: 0

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739. Daily Temperatures (Medium)

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.

 

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

[Array] [Stack] [Monotonic Stack]

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Hints

Hint 1 If the temperature is say, 70 today, then in the future a warmer temperature must be either 71, 72, 73, ..., 99, or 100. We could remember when all of them occur next.

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