View Compilation Error

0_0_10628011_25209.cpp: In function `long long int cost(long long int, long long int, long long int)':
0_0_10628011_25209.cpp:22: error: `getmin' undeclared (first use this function)
0_0_10628011_25209.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)