View Compilation Error

0_0_2888588_20189.cpp: In function `void dfs(int)':
0_0_2888588_20189.cpp:46: error: `count' undeclared (first use this function)
0_0_2888588_20189.cpp:46: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2888588_20189.cpp: In function `int main()':
0_0_2888588_20189.cpp:76: error: `count' undeclared (first use this function)