View Compilation Error

0_0_7161434_29447.cpp:5: error: `max' was not declared in this scope
0_0_7161434_29447.cpp:5: error: `max' was not declared in this scope
0_0_7161434_29447.cpp:6: error: `max' was not declared in this scope
0_0_7161434_29447.cpp: In function `void qsort(int, int)':
0_0_7161434_29447.cpp:10: error: `a' undeclared (first use this function)
0_0_7161434_29447.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7161434_29447.cpp:18: error: `J' undeclared (first use this function)
0_0_7161434_29447.cpp:19: error: `F' undeclared (first use this function)
0_0_7161434_29447.cpp: In function `int main()':
0_0_7161434_29447.cpp:34: error: `J' undeclared (first use this function)
0_0_7161434_29447.cpp:34: error: `F' undeclared (first use this function)
0_0_7161434_29447.cpp:35: error: `a' undeclared (first use this function)