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BTCK - A problem of Backtracking |
You have to solve the following problem with backtracking. You're given a sequence of 10 positive integers n1, n2, n3 ... n9, n10 and a positive value K.
To solve this problem you need to print a permutation a1, a2, a3 ... a10 of the numbers {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} such that a1 * n1 + a2 * n2 + a3 * n3 + ... + a10 * n10 ≤ K.
Input
In the first line, a single integer T, the number of test cases.
For each test case there will be two lines:
In the first line, 10 positive integers (1 ≤ n_i ≤ 10^9) separated by spaces.
In the second line, a single positive integer K (1 ≤ K ≤ 10^9).
Output
For each test case, print a line with the answer for that test case as following:
Among all the permutations that solve the problem according to the description above, print the lexicographically smallest.
You've to print the permutation in a single line, separating each integer by a simple space.
If no such permutation exists, print a single line with "-1".
Example
Input: 2 1 2 3 4 5 6 7 8 9 10 200 1 2 3 4 5 6 7 8 9 10 100 Output: 2 6 8 9 7 5 4 3 1 0 -1
Added by: | BerSub |
Date: | 2016-10-04 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 GOSU |
hide comments
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2017-10-15 13:36:58
TIP: I got WA because I checked if permution is equal instead of equal OR LESS :) Last edit: 2017-10-15 13:38:21 |
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2017-06-19 21:36:58
@ d_y1997: Try stack data structure..!! |
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2017-06-02 00:25:40
can any one help me please , I am unable to find a recursive code for finding pemutations |