Compilare: user.cpp:198:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp:60: warning: comparison between signed and unsigned integer expressions user.cpp:63: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void add()': user.cpp:116: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void sub()': user.cpp:128: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void multv(std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&)': user.cpp:168: warning: comparison between signed and unsigned integer expressions user.cpp:171: warning: comparison between signed and unsigned integer expressions user.cpp:174: warning: comparison between signed and unsigned integer expressions user.cpp:174: warning: comparison between signed and unsigned integer expressions user.cpp:176: warning: comparison between signed and unsigned integer expressions user.cpp:178: warning: comparison between signed and unsigned integer expressions