View Compilation Error

39834_0_6375.cpp: In function `void dfs(int)':
39834_0_6375.cpp:16: error: `count' undeclared (first use this function)
39834_0_6375.cpp:16: error: (Each undeclared identifier is reported only once for each function it appears in.)
39834_0_6375.cpp: In function `int main()':
39834_0_6375.cpp:56: error: `count' undeclared (first use this function)