Input The first line contains two integers N and S ( 1 <= N <= 10³ 1 <= S <= 10%), denoting the length of the list, and the target Sum. In the next line, there will be N integers a₁, a2,...... a (1 ≤ a ≤ 10) separated by space. Output Print two integers: the positions of the values [1 based indexing]. If there are several solutions, you may print any of them. If there are no solutions, print "IMPOSSIBLE". Sample Input 1 4 10 37 15 Sample Input 2 6 18 9 10 1 5 98 Sample Input 3 47 2468 Sample Input 4 3 12 61 2 Sample Output 1 12 Sample Output 2 15 [2 6 is also a valid answer] [print only one output] Sample Output 3 IMPOSSIBLE Sample Output 4 IMPOSSIBLE

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Only need the ans for 2. Solve this using python. For the problem, take sample input from the picture into a file called "input.txt" and save the output in the "output.txt" file.
Your little brother, Alice, is very fond of playing with
integers. One day, Alice was given a list of N integers by his
school teacher. Now, your brother wants to play a game with you.
Alice will give you an integer, S. You have to find if it is
possible to find two values from the list (at distinct
positions) whose sum is equal to S.
Now you are feeling very tired. So you decided to write a code,
so that it can give you the answer very quickly.
1) Can you write an O(n²) Solution to solve the problem?
2) Come up with an O(n) or 0 (nlogn) solution.
Transcribed Image Text:Your little brother, Alice, is very fond of playing with integers. One day, Alice was given a list of N integers by his school teacher. Now, your brother wants to play a game with you. Alice will give you an integer, S. You have to find if it is possible to find two values from the list (at distinct positions) whose sum is equal to S. Now you are feeling very tired. So you decided to write a code, so that it can give you the answer very quickly. 1) Can you write an O(n²) Solution to solve the problem? 2) Come up with an O(n) or 0 (nlogn) solution.
Input
The first line contains two integers N and S ( 1 <= N <= 105 1 <=
S <= 10), denoting the length of the list, and the target Sum.
.,a (1 ≤ a S
In the next line, there will be N integers a₁, a2,
10) separated by space.
Output
Print two integers: the positions of the values [1 based
indexing]. If there are several solutions, you may print any of
them. If there are no solutions, print "IMPOSSIBLE".
Sample Input 1
4 10
37 15
Sample Input 2
6 18
9 10 1 5 98
Sample Input 3
47
2468
Sample Input 4
3 12
6 1 2
Sample Output 1
1 2
Sample Output 2
15
[2 6 is also a valid answer]
[print only one output]
Sample Output 3
IMPOSSIBLE
Sample Output 4
IMPOSSIBLE
Transcribed Image Text:Input The first line contains two integers N and S ( 1 <= N <= 105 1 <= S <= 10), denoting the length of the list, and the target Sum. .,a (1 ≤ a S In the next line, there will be N integers a₁, a2, 10) separated by space. Output Print two integers: the positions of the values [1 based indexing]. If there are several solutions, you may print any of them. If there are no solutions, print "IMPOSSIBLE". Sample Input 1 4 10 37 15 Sample Input 2 6 18 9 10 1 5 98 Sample Input 3 47 2468 Sample Input 4 3 12 6 1 2 Sample Output 1 1 2 Sample Output 2 15 [2 6 is also a valid answer] [print only one output] Sample Output 3 IMPOSSIBLE Sample Output 4 IMPOSSIBLE
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