Treasures in a map (1)

Write a program that, given a map with treasures and obstacles, tells if
it is possible to reach some treasure from a given initial position. The
allowed movements are horizontal or vertical, but not diagonal.

Input

Input begins with the number of rows n > 0 and the number of columns
m > 0 of the map. Follow n rows with m characters each. A dot indicates
an empty position, an ‘X’ indicates an obstacle, and a ‘t’ indicates a
treasure. Finally, two numbers r and c indicate the initial row and
column (both of them starting at 1) where we must start looking for
treasures. You can assume that r is between 1 and n, that c is between 1
and m, and that the initial position is always empty.

Output

Print “yes” or “not” depending on whether it possible or not to reach
any treasure.

Problem information

Author: Unknown
Translator: Carlos Molina

Generation: 2026-01-25T11:35:31.734Z

© Jutge.org, 2006–2026.
https://jutge.org
