View Compilation Error

0_0_2521484_1867.cpp: In function `void change(char*)':
0_0_2521484_1867.cpp:8: error: `count' undeclared (first use this function)
0_0_2521484_1867.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2521484_1867.cpp: In function `int main()':
0_0_2521484_1867.cpp:59: error: `count' undeclared (first use this function)