Compilare: user.cpp: In function ‘int main()’: user.cpp:95:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ordonat.size() - 1; i++) ^ user.cpp:96:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < ordonat.size(); j++) ^ user.cpp:101:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for1(i, ordonat.size()) ^ user.cpp:3:35: note: in definition of macro ‘for1’ #define for1(i,n) for(int i=1; i<=n; i++) ^