View Compilation Error

0_0_11618658_30630.cpp:1:9: #include expects "FILENAME" or <FILENAME>
0_0_11618658_30630.cpp:2:9: #include expects "FILENAME" or <FILENAME>
0_0_11618658_30630.cpp:3:9: #include expects "FILENAME" or <FILENAME>
0_0_11618658_30630.cpp: In function `void bfs()':
0_0_11618658_30630.cpp:48: error: non-lvalue in assignment
0_0_11618658_30630.cpp: In function `int main()':
0_0_11618658_30630.cpp:71: error: `scanf' undeclared (first use this function)
0_0_11618658_30630.cpp:71: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11618658_30630.cpp:71: error: `EOF' undeclared (first use this function)
0_0_11618658_30630.cpp:79: error: `cout' undeclared (first use this function)
0_0_11618658_30630.cpp:79: error: `endl' undeclared (first use this function)
0_0_11618658_30630.cpp:82: error: `printf' undeclared (first use this function)