View Compilation Error

0_0_6038388_13746.cpp:8: error: expected init-declarator before "void"
0_0_6038388_13746.cpp:8: error: expected `,' or `;' before "void"
0_0_6038388_13746.cpp: In function `int main()':
0_0_6038388_13746.cpp:34: error: `xl' undeclared (first use this function)
0_0_6038388_13746.cpp:34: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6038388_13746.cpp:37: error: `dfs' undeclared (first use this function)