View Compilation Error

0_0_9060104_10312.cpp: In function `void DP()':
0_0_9060104_10312.cpp:15: error: `max' undeclared (first use this function)
0_0_9060104_10312.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9060104_10312.cpp: In function `int main()':
0_0_9060104_10312.cpp:25: error: `max' undeclared (first use this function)