Create answer.cpp
Merge pull request #10 from ie-ProCon/issue#4_siman

Create answer.cpp
Updated .gitignore
Add *.out
Add .DS_Store
New maze sample0
Same ant_book's sample.
Fix sample0
small char -> large char
's' -> 'S'
Merge branch 'add_update_gitignore' into issue#5_kanpe
New answer.cc
maybe readable...
New Makefile
Fix answer.cc
exchange N and M.
M = X_MAX
N = Y_MAX
New sample1
Add make test1
New sample2
X_MAX = 40
Y_MAX = 20
Add make test2
./a.out sample2