View Compilation Error

0_0_15045183_1613.cpp: In function 'void dfs(int, int, int)':
0_0_15045183_1613.cpp:34:14: error: 'nx' was not declared in this scope
         if(a[nx][ny]!='D')
              ^
0_0_15045183_1613.cpp:34:18: error: 'ny' was not declared in this scope
         if(a[nx][ny]!='D')
                  ^
0_0_15045183_1613.cpp:37:16: error: 'nx' was not declared in this scope
         if(map[nx][ny]!='D')
                ^
0_0_15045183_1613.cpp:37:20: error: 'ny' was not declared in this scope
         if(map[nx][ny]!='D')
                    ^