View Compilation Error

0_0_11856454_25792.cpp: In function `void Dijkstra(int)':
0_0_11856454_25792.cpp:17: error: `fffffff' undeclared (first use this function)
0_0_11856454_25792.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11856454_25792.cpp: In function `int main()':
0_0_11856454_25792.cpp:40: error: `fffffff' undeclared (first use this function)