View Compilation Error

1060561_0_0_10322.cpp: In function `int main()':
1060561_0_0_10322.cpp:13: error: `min' undeclared (first use this function)
1060561_0_0_10322.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
1060561_0_0_10322.cpp: In function `void wk(int, int, int)':
1060561_0_0_10322.cpp:46: error: `min' undeclared (first use this function)