View Compilation Error

0_0_33991636_31033.cpp:5:9: error: 'Min25' does not name a type
 typedef Min25 m2;
         ^
0_0_33991636_31033.cpp: In function 'int main()':
0_0_33991636_31033.cpp:74:16: error: 'm2' has not been declared
         ans += m2::solve(n+1) -2;
                ^