View Compilation Error

520953_0_0_16983.cpp: In function `void run(int)':
520953_0_0_16983.cpp:5: error: `max' undeclared (first use this function)
520953_0_0_16983.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
520953_0_0_16983.cpp:6: error: `c' undeclared (first use this function)