0_0_16435250_11604.cpp: In function 'void dfs(int, int, int)':
0_0_16435250_11604.cpp:17:11: error: invalid types 'int[int]' for array subscript
u=x+dx[i][0];
^
0_0_16435250_11604.cpp:18:11: error: invalid types 'int[int]' for array subscript
v=y+dy[i][1];
^
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