Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:9:2: error: reference to ‘cin’ is ambiguous cin>>A>>B>>X; ^ user.cpp:4:10: note: candidates are: std::ifstream cin ifstream cin("holiday.in"); ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0, from user.cpp:1: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:10:21: error: reference to ‘cout’ is ambiguous if (abs(A-B)%X==0) cout<<X; ^ user.cpp:5:10: note: candidates are: std::ofstream cout ofstream cout("holiday.out"); ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0, from user.cpp:1: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^ user.cpp:16:14: error: reference to ‘cout’ is ambiguous cout<<__gcd(X,B); ^ user.cpp:5:10: note: candidates are: std::ofstream cout ofstream cout("holiday.out"); ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0, from user.cpp:1: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^