View Compilation Error

0_0_6738634_31057.cpp: In function `Node* buildtree(int, int)':
0_0_6738634_31057.cpp:17: error: `count' undeclared (first use this function)
0_0_6738634_31057.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6738634_31057.cpp: In function `int main()':
0_0_6738634_31057.cpp:80: error: `count' undeclared (first use this function)