View Compilation Error

0_0_8652063_4953.cpp: In function `void dfs(int, int, int)':
0_0_8652063_4953.cpp:13: error: `bj' undeclared (first use this function)
0_0_8652063_4953.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8652063_4953.cpp: At global scope:
0_0_8652063_4953.cpp:22: error: expected unqualified-id before "return"
0_0_8652063_4953.cpp:22: error: expected `,' or `;' before "return"
0_0_8652063_4953.cpp:23: error: expected declaration before '}' token