0_0_18963313_19566.cpp: In function 'int main()': 0_0_18963313_19566.cpp:47:20: error: 'ii' was not declared in this scope dfs(ii,jj); ^ 0_0_18963313_19566.cpp:47:23: error: 'jj' was not declared in this scope dfs(ii,jj); ^