View Compilation Error

0_0_32865276_25185.cpp:10:2: error: 'MinCostMaxFlow' does not name a type
  MinCostMaxFlow mc;
  ^
0_0_32865276_25185.cpp: In function 'int main()':
0_0_32865276_25185.cpp:28:10: error: 'mc' was not declared in this scope
          mc.init();
          ^