Eroare de compilare: user.cpp: In function ‘void euler(int)’: user.cpp:18:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<a[x].size()&&okk;i++) ^ user.cpp: In function ‘int main()’: user.cpp:51:22: error: ‘typeof’ was not declared in this scope typeof (l.begin()) it; ^ user.cpp:51:24: error: expected ‘;’ before ‘it’ typeof (l.begin()) it; ^ user.cpp:52:10: error: ‘it’ was not declared in this scope for (it=l.begin();it!=l.end();it++) ^