Here is my code: https://ide.codingblocks.com/s/233204
The second test case is giving tle can you tell what is the problem.
Hostel Visit(TLE)
tle will come as you are storing all elements and apply heapsort to them
this will give tle
so you need to store only k elements
try to use stl it is handy and easy to use
reference code if needed
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