View Compilation Error

0_0_9147634_2039.cpp: In function `void dfs(int)':
0_0_9147634_2039.cpp:40: error: `count' undeclared (first use this function)
0_0_9147634_2039.cpp:40: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9147634_2039.cpp: In function `int main()':
0_0_9147634_2039.cpp:65: error: `count' undeclared (first use this function)