0_0_35824160_4320.cpp: In function 'int main()': 0_0_35824160_4320.cpp:22:24: error: too few arguments to function 'int bfs(int, int, int)' int step = bfs(); ^ 0_0_35824160_4320.cpp:11:5: note: declared here int bfs(int p1, int p2, int p3); ^