View Compilation Error

0_0_10984258_1958.cpp: In function `void bfs(int, int)':
0_0_10984258_1958.cpp:47: error: `nod' undeclared (first use this function)
0_0_10984258_1958.cpp:47: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10984258_1958.cpp:47: error: expected `;' before "e"
0_0_10984258_1958.cpp:50: error: `p' undeclared (first use this function)