View Compilation Error

97861_0_24117.cpp: In function `void bfs(int)':
97861_0_24117.cpp:12: error: `l' undeclared (first use this function)
97861_0_24117.cpp:12: error: (Each undeclared identifier is reported only once for each function it appears in.)
97861_0_24117.cpp:19: error: `count' undeclared (first use this function)
97861_0_24117.cpp: In function `int main()':
97861_0_24117.cpp:29: error: `count' undeclared (first use this function)