0_0_13041565_8090.cpp: In function `void dfs(int, int, int)':
0_0_13041565_8090.cpp:33: error: invalid token
0_0_13041565_8090.cpp:33: error: non-lvalue in unary `&'
0_0_13041565_8090.cpp:33: error: expected `)' before ';' token
0_0_13041565_8090.cpp:33: error: invalid token
0_0_13041565_8090.cpp:33: error: non-lvalue in unary `&'
0_0_13041565_8090.cpp:33: error: expected primary-expression before '||' token
0_0_13041565_8090.cpp:33: error: expected `;' before ')' token
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