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Java-based LeetCode algorithm problem solutions, regularly updated
package g0701_0800.s0739_daily_temperatures;
// #Medium #Top_100_Liked_Questions #Array #Stack #Monotonic_Stack #Programming_Skills_II_Day_6
// #Big_O_Time_O(n)_Space_O(n) #2022_03_25_Time_10_ms_(94.99%)_Space_118.3_MB_(70.21%)
/**
* 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`
**/
@SuppressWarnings("java:S135")
public class Solution {
public int[] dailyTemperatures(int[] temperatures) {
int[] sol = new int[temperatures.length];
sol[temperatures.length - 1] = 0;
for (int i = sol.length - 2; i >= 0; i--) {
int j = i + 1;
while (j <= sol.length) {
if (temperatures[i] < temperatures[j]) {
sol[i] = j - i;
break;
} else {
if (sol[j] == 0) {
break;
}
j = j + sol[j];
}
}
}
return sol;
}
}
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