added problem74

Author: dampdigits

problem74/README.md

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+# 739. Daily Temperatures
+
+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