Find a SubsequenceProblem code: FINDSEQ |
All submissions for this problem are available.
Given an array A of N integers A[0], A[1], ..., A[N-1] and a string B which is a permutation of "12345".
You have to find a subsequence of 5 elements from A having distinct values such that their relative order is same as B.
Meaning that, if (i0, i1, i2, i3, i4) are the indexes of such a subsequence
(0 <= i0 < i1 < i2 < i3 < i4 < N) then:
Input
The first line of input contains T(<=60) which is the number of tests cases. The first line of each test case will be an integer N (5<=N<=1000) and a string B containing a permutation of "12345". Next line will contain N integers A[0], A[1], ..., A[N-1]. Each of them will be between -109 and +109 (inclusive).
Output
For each test case output five space separated integers in ascending order which are the indexes (i0, i1, i2, i3, i4) of a five length subsequence described before. You may output any solution. If there is no solution just output "-1" without quotes.
Example
Input: 2 7 32145 6 17 5 3 13 8 10 7 12345 10 20 30 40 40 20 10 Output: 0 2 3 5 6 -1
Explanation of 1st sample: {0, 2, 3, 5, 6} is a valid solution because the values of those indexes {6, 5, 3, 8, 10} will have ranks {3, 2, 1, 4, 5} after sorting. But {0, 2, 3, 4, 5} is not a solution as the values {6, 5, 3, 13, 8} will have ranks {3, 2, 1, 5, 4} after sorting.
Explanation of 2nd sample: There is no five length subsequence in the array that will have ranks {1, 2, 3, 4, 5} after sorting.
| Date: | 2011-12-07 |
| Time limit: | 9s-14s |
| Source limit: | 50000B |
| Languages: | All |
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