View Compilation Error

0_0_1165881_798.cpp: In function `void dfs(int, long long int)':
0_0_1165881_798.cpp:13: error: `count' undeclared (first use this function)
0_0_1165881_798.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1165881_798.cpp: In function `int main()':
0_0_1165881_798.cpp:30: error: `count' undeclared (first use this function)