View Compilation Error

1060552_0_0_30932.cpp: In function `int main()':
1060552_0_0_30932.cpp:12: error: `min' undeclared (first use this function)
1060552_0_0_30932.cpp:12: error: (Each undeclared identifier is reported only once for each function it appears in.)
1060552_0_0_30932.cpp: In function `void wk(int, int, int)':
1060552_0_0_30932.cpp:45: error: `min' undeclared (first use this function)