View Compilation Error

0_0_6282599_1138.cpp: In function `double fun(int, int)':
0_0_6282599_1138.cpp:62: error: `count' undeclared (first use this function)
0_0_6282599_1138.cpp:62: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6282599_1138.cpp: In function `int main()':
0_0_6282599_1138.cpp:84: error: `count' undeclared (first use this function)