View Compilation Error

0_0_20844474_6404.cpp: In function 'void dfs(int, int, int, int)':
0_0_20844474_6404.cpp:34:10: error: 'mapp' was not declared in this scope
       if(mapp[!ceng][xx][yy]!='#') 
          ^
0_0_20844474_6404.cpp:34:22: error: 'xx' was not declared in this scope
       if(mapp[!ceng][xx][yy]!='#') 
                      ^
0_0_20844474_6404.cpp:34:26: error: 'yy' was not declared in this scope
       if(mapp[!ceng][xx][yy]!='#') 
                          ^