Compilare: user.cpp: In function 'void reset()': user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void copy()': user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void apm(std::vector<muchie, std::allocator<muchie> >, int)': user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void solve()': user.cpp:77: warning: format '%.6lf' expects type 'double', but argument 2 has type 'int'