View Compilation Error

0_0_8465839_15406.cpp: In function `void bianli(tree*)':
0_0_8465839_15406.cpp:40: error: `count' undeclared (first use this function)
0_0_8465839_15406.cpp:40: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8465839_15406.cpp: In function `int main()':
0_0_8465839_15406.cpp:50: error: `count' undeclared (first use this function)