View Compilation Error

0_0_11383120_13865.cpp: In function `void PushUp(int)':
0_0_11383120_13865.cpp:14: error: `max' undeclared (first use this function)
0_0_11383120_13865.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11383120_13865.cpp: In function `void build(int, int, int)':
0_0_11383120_13865.cpp:20: error: `max' undeclared (first use this function)
0_0_11383120_13865.cpp: In function `void update(int, int, int, int, int)':
0_0_11383120_13865.cpp:32: error: `max' undeclared (first use this function)
0_0_11383120_13865.cpp: In function `int query(int, int, int, int, int)':
0_0_11383120_13865.cpp:43: error: `max' undeclared (first use this function)