LeetCode 739: Daily Temperatures Solution
Master LeetCode problem 739 (Daily Temperatures), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
739. Daily Temperatures
Problem Explanation
Explanation:
- We can solve this problem using a stack to keep track of the indices of temperatures that we have not found the next warmer day for.
- We iterate through the temperatures array and for each temperature, we check if it is warmer than the temperature at the top of the stack. If it is warmer, we update the answer for that index in the result array.
- We keep popping indices from the stack until we find a temperature that is warmer or the stack becomes empty.
Time complexity: O(n)
Space complexity: O(n)
Solution Code
class Solution {
public int[] dailyTemperatures(int[] temperatures) {
int n = temperatures.length;
int[] result = new int[n];
Stack<Integer> stack = new Stack<>();
for (int i = 0; i < n; i++) {
while (!stack.isEmpty() && temperatures[i] > temperatures[stack.peek()]) {
int idx = stack.pop();
result[idx] = i - idx;
}
stack.push(i);
}
return result;
}
}Try It Yourself
Loading code editor...
Related LeetCode Problems
Frequently Asked Questions
How to solve LeetCode 739 (Daily Temperatures)?
This page provides optimized solutions for LeetCode problem 739 (Daily Temperatures) in Java, C++, and Python, along with a detailed explanation and an interactive code editor to test your code.
What is the time complexity of LeetCode 739 (Daily Temperatures)?
The time complexity for LeetCode 739 (Daily Temperatures) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.
Can I run code for LeetCode 739 on DevExCode?
Yes, DevExCode provides an interactive code editor where you can write, test, and run your code for LeetCode 739 in Java, C++, or Python.