View Compilation Error

0_0_4691778_6023.cpp: In function `void input()':
0_0_4691778_6023.cpp:17: error: `count' undeclared (first use this function)
0_0_4691778_6023.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4691778_6023.cpp: In function `int h()':
0_0_4691778_6023.cpp:27: error: `count' undeclared (first use this function)
0_0_4691778_6023.cpp: In function `bool dfs(int)':
0_0_4691778_6023.cpp:44: error: `count' undeclared (first use this function)