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2. Convert a given array of integers into a heap. You will do that by applying a certain number of swaps to the array. Swap is an operation which exchanges elements ai and aj of the array a for some i and j. Note that you will need to use a min-heap instead of a max-heap in this problem. Input Format. The first line of the input contains single integer n. The next line contains n space- separated integers a, Constraints. 1n100 000; 0 sijsn-1; 0