View Compilation Error

121558_0_1832.cpp: In function `long long int fun(int, int)':
121558_0_1832.cpp:38: error: `min' undeclared (first use this function)
121558_0_1832.cpp:38: error: (Each undeclared identifier is reported only once for each function it appears in.)
121558_0_1832.cpp: In function `int main()':
121558_0_1832.cpp:60: error: `min' undeclared (first use this function)