Daily Temperatures
Detailed guide and Python implementation for the 'Daily Temperatures' problem.
Problem Statement
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.
Write a function dailyTemperatures(temperatures: List[int]) -> List[int].
- •1 <= len(temperatures) <= 10^5
- •30 <= temperatures[i] <= 100
Examples
temperatures = [73, 74, 75, 71, 69, 72, 76, 73]
[1, 1, 4, 2, 1, 1, 0, 0]
Day 0 (73): next warmer is day 1 (74), wait 1 day. Day 2 (75): next warmer is day 6 (76), wait 4 days. Days 6 and 7 have no warmer future day.
temperatures = [30, 40, 50, 60]
[1, 1, 1, 0]
Each day except the last has a warmer day immediately after.
temperatures = [30, 60, 90]
[1, 1, 0]
Temperatures are strictly increasing except the last day.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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