CF36D - New Game with a Chess Piece
Petya and Vasya are inventing a new game that requires a rectangular board and one chess piece. At the beginning of the game the piece stands in the upper-left corner of the board. Two players move the piece in turns. Each turn the chess piece can be moved either one square to the right or one square down or jump k squares diagonally down and to the right. The player who can’t move the piece loses.
The guys haven’t yet thought what to call the game or the best size of the board for it. Your task is to write a program that can determine the outcome of the game depending on the board size.
Input
The first input line contains one integer 1 ≤ t ≤ 20202. Each of the following t lines contains three numbers: k and n, m - the jump length and the board’s length and width (1 ≤ n, m ,k ≤ 109).
Output
Output t lines that can determine the outcomes of the game on every board. Write «+» if the first player is a winner, and «-» otherwise.
Example
Input: 10 1 1 1 1 2 1 2 1 2 2 2 2 1 3 2 2 3 2 3 1 3 3 2 3 3 3 3 4 3 3 Output: - + + - + + - + - -
hide comments
nadstratosfer:
2021-04-05 06:00:15
Great problem. Don't believe the comments, to infer the logic you need more than the example cases.
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Puneet Gupta:
2014-06-18 09:00:03
what is the answer of 1 3 2?? it can be + if diagonal move is given precedence and - otherwise.! |
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Bhavik:
2014-02-16 13:14:27
test cases are enough to solve this problem:)my 200th |
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raunakrocks:
2013-03-21 11:41:44
try the case u'll get the logic :)
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Ruslan Sennov:
2010-11-30 05:26:30
2 magdi
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magdi:
2010-11-29 15:17:34
there is a problem in the sample
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যোবায়ের:
2010-10-22 15:08:15
Edit: got it, it was my mistake in reading input. Last edit: 2010-10-22 15:29:49 |
Added by: | Ruslan Sennov |
Date: | 2010-10-19 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 NODEJS OBJC VB.NET |
Resource: | Codeforces #36 |