Peg Game
Time Limit: 1 Second Memory Limit: 32768 KB
Special Judge
The board is specified as a 7-by-7 array of characters, with the following meanings:
x: this hole may never be occupied by a peg
e: this hole is initially empty
o: this hole is initially occupied by a peg
E: this hole is initially empty, and the last peg should end here
O: this hole is initially occupied, and the last peg should end here
For example, consider the following board:
x x e e e x x
x x o e e x x
e e o e e e e
e e o O e e e
e e e e e e e
x x e e e x x
x x e e e x x
You can see that there are initially 4 pegs in the board, and the last peg should end up in the middle of the board. The winning sequence of moves is:
1. (4, 4) to (2, 4)
2. (3, 2) to (3, 4)
3. (2, 4) to (4, 4)
Where coordinates are given as (x, y).
Input
The first line of input is the number of datasets to follow. Each dataset should be processed the same.
The input for each dataset consists of 7 lines; each line consists of 7 characters from the set {x, e, o, E, O} with blanks between them. You are guaranteed that exactly one 'E' or 'O' will appear, and that two or more 'o' or 'O' will appear.
Output
For each dataset, output a line containing the data set number. If a sequence of valid moves exists that leaves only one peg on the board, and leaves that peg in the desired location, print out the sequence of moves, as shown in the above example. If no sequence exists, print "No solution". Leave a blank line between datasets.
Sample Input
2 x x e e e x x x x o e e x x e e o e e e e e e o O e e e e e e e e e e x x e e e x x x x e e e x x x x e E e e e x e e e e e e e e e o o e e e e e x e e e e e e e e e e e e e e e e e e e e e e e e
Sample Output
Dataset 1: 1. (4, 4) to (2, 4) 2. (3, 2) to (3, 4) 3. (2, 4) to (4, 4) Dataset 2: No solution.Submit
Source: Greater New York 2003