Optimal Ticket SellerMax Score: 100There are N number of ticket counters outside a local theatre. Each counter has variable number of tickets - Ti. The price of a ticket on a single counter is equal to the number of tickets remaining in the counter.For example, if a counter has 10 tickets, the price of the 1st ticket will be Rs 10, 2nd would be Rs 9 and so on. Given that K tickets are going to be sold for a particular show, find the maximum amount that can be collected.Input FormatFirst line of input contains T - number of test cases. Its followed by 2T lines. First line of each test case contains N,K - the number of counters and the number of tickets to be sold. Next line contains N integers - the amount of tickets at each counter respectively.Output FormatFor each test case, print the maximum amount collected, separated by new line.Constraints30 points1 <= T <= 1001 <= N <= 1021 <= Ti <= 1030 <= K <= Sum(Ti)70 points1 <= T <= 1001 <= N <= 1041 <= Ti <= 1050 <= K <= Sum(Ti)ExampleInput22 47 54 1012 10 6 8Output2392ExplanationExample 1:Buy 3 tickets from 1st counter: 7+6+5 and 1 ticket from the 2nd counter: 5, Amount = 7+6+5+5=23.
Question
Optimal Ticket SellerMax Score: 100There are N number of ticket counters outside a local theatre. Each counter has variable number of tickets - Ti. The price of a ticket on a single counter is equal to the number of tickets remaining in the counter.For example, if a counter has 10 tickets, the price of the 1st ticket will be Rs 10, 2nd would be Rs 9 and so on. Given that K tickets are going to be sold for a particular show, find the maximum amount that can be collected.Input FormatFirst line of input contains T - number of test cases. Its followed by 2T lines. First line of each test case contains N,K - the number of counters and the number of tickets to be sold. Next line contains N integers - the amount of tickets at each counter respectively.Output FormatFor each test case, print the maximum amount collected, separated by new line.Constraints30 points1 <= T <= 1001 <= N <= 1021 <= Ti <= 1030 <= K <= Sum(Ti)70 points1 <= T <= 1001 <= N <= 1041 <= Ti <= 1050 <= K <= Sum(Ti)ExampleInput22 47 54 1012 10 6 8Output2392ExplanationExample 1:Buy 3 tickets from 1st counter: 7+6+5 and 1 ticket from the 2nd counter: 5, Amount = 7+6+5+5=23.
Solution
This problem is about maximizing the total price of tickets sold from multiple counters. Here's a step-by-step solution:
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Parse the input: The first line of input gives the number of test cases. Each test case is defined by two lines. The first line of the test case gives the number of counters and the number of tickets to be sold. The second line gives the number of tickets at each counter.
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For each test case, follow these steps:
a. Create a max heap to store the number of tickets at each counter. The max heap is used because we always want to sell the ticket from the counter that has the most tickets left, as that will give us the maximum price.
b. While there are still tickets to be sold (i.e., K > 0), do the following:
i. Remove the top element from the max heap (this is the counter with the most tickets left).
ii. Subtract one from the number of tickets at this counter (since we're selling one ticket), and add the original number of tickets at this counter to the total price (since the price of a ticket is equal to the number of tickets left at the counter before the sale).
iii. If there are still tickets left at this counter after the sale, add this counter back into the max heap.
iv. Subtract one from K (since we've sold one ticket).
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The total price calculated in step 2 is the maximum amount that can be collected for the given test case.
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Repeat steps 2 and 3 for each test case.
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Print the maximum amount collected for each test case.
This solution works because it always sells the ticket that will bring in the most money (i.e., the ticket from the counter with the most tickets left). This ensures that the total price is maximized.
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