View Compilation Error

0_0_3015891_28128.cpp: In function `void dij()':
0_0_3015891_28128.cpp:23: error: `n' undeclared (first use this function)
0_0_3015891_28128.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3015891_28128.cpp:29: error: `bf' undeclared (first use this function)
0_0_3015891_28128.cpp: In function `int main()':
0_0_3015891_28128.cpp:41: error: expected `)' before ';' token
0_0_3015891_28128.cpp:48: error: `bf' undeclared (first use this function)