View Compilation Error

79840_0_23547.cpp: In function `void dfs(int, int)':
79840_0_23547.cpp:16: error: `count' undeclared (first use this function)
79840_0_23547.cpp:16: error: (Each undeclared identifier is reported only once for each function it appears in.)
79840_0_23547.cpp: In function `int main()':
79840_0_23547.cpp:68: error: `count' undeclared (first use this function)