Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Write code in C++, C# or Python to solve the following problem:
In a party there are N persons and we have M raffles. One person may participate in any number of raffles (from 0 to M). At the end of the day, host of the party comes to you and gives you M lists. Each list contains multiple integer numbers which are the "raffle ID numbers" of the participants. Then, for each list an integer number, I, is announced to determine the winner of the raffle: the winner is the person with raffle ID number K such that K is larger than exactly I numbers in that list. To help the host to find the winners you want to write a program.
Input Format
First line of the input is N and M. Then, there are M lines, each one contains integer numbers between 1 and N. Each list may contain at most N numbers. At the end of each line there is -1. After these lines there is one line which contains M integers to announce the winners. If the j-th number in this line is I it means that the winner of list j is the person whose ID is exactly larger than I other persons in that list. If I is larger than number of people in list j, then that list does not have a winner.
Example:831423-15218637-146831-1258
Comment: there are 8 people in this party and we have 3 raffles. In the first raffle, participants' IDs are 1, 4, 2, and 3. In the second raffle, IDs are 5, 2, ... Winner of the first raffle is 3 (3 is exactly larger than 2 other numbers in that list). Winner of the second raffle is 7 (7 is larger than 1, 2, 3, 5, and 6 in the second raffle). Third raffle does not have a winner (there are only 5 participants but the winner's ID has to be larger than 8 other IDs, which is impossible).
Constraints
NA
Output Format
For each list print the ID of the winner. If there is no winner, print -1.
Example: For the example in the Input part we will have: 3 7 -1
Sample Input 0
8 3
1 4 2 3 -1
5 2 1 8 6 3 7 -1
4 6 8 3 1 -1
2 5 8
Sample Output 0
3
7
-1
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