Added some code

leetcode/problems/cpp/daily-temperatures.cpp

@@ -0,0 +1,23 @@
+// by @codeAbinash
+// Time : O(n)
+// Space : O(n)
+
+#include "vector"
+using namespace std;
+
+class Solution {
+  public:
+   vector<int> dailyTemperatures(vector<int>& temperatures) {
+      int size = temperatures.size();
+      vector<int> ans(size, 0);
+      vector<int> stack;
+      for (int i = 0; i < size; i++) {
+         while (!stack.empty() && temperatures[stack.back()] < temperatures[i]) {
+            ans[stack.back()] = i - stack.back();
+            stack.pop_back();
+         }
+         stack.push_back(i);
+      }
+      return ans;
+   }
+};