View Compilation Error

0_0_33352976_30927.cpp: In function 'void dfs(int, int, int, int)':
0_0_33352976_30927.cpp:17:6: error: 'x' was not declared in this scope
   if(x>=1 &&x<=m &&y>=1 &&y<=n && !vis[x][y] && !Map[x][y]){
      ^
0_0_33352976_30927.cpp:17:20: error: 'y' was not declared in this scope
   if(x>=1 &&x<=m &&y>=1 &&y<=n && !vis[x][y] && !Map[x][y]){
                    ^