View Compilation Error

0_0_6483139_671.cpp: In function `void count_node(int, int)':
0_0_6483139_671.cpp:17: error: `max' undeclared (first use this function)
0_0_6483139_671.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6483139_671.cpp:19: error: `min' undeclared (first use this function)
0_0_6483139_671.cpp: In function `void num_node()':
0_0_6483139_671.cpp:25: error: `min' undeclared (first use this function)
0_0_6483139_671.cpp:25: error: `max' undeclared (first use this function)
0_0_6483139_671.cpp: In function `int main()':
0_0_6483139_671.cpp:76: error: `min' undeclared (first use this function)
0_0_6483139_671.cpp:77: error: `max' undeclared (first use this function)