Eroare de compilare: main.cpp: In function 'int main()': main.cpp:38:5: error: reference to 'cin' is ambiguous cin >> X >> Y >> q; ^~~ main.cpp:8:10: note: candidates are: std::ifstream cin ifstream cin("agora.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:44:9: error: reference to 'cin' is ambiguous cin >> a >> b >> c >> d; ^~~ main.cpp:8:10: note: candidates are: std::ifstream cin ifstream cin("agora.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:49:9: error: reference to 'cout' is ambiguous cout << dp[c][b] - dp[c][d - 1] - dp[a - 1][b] + dp[a - 1][d - 1] << "\n"; ^~~~ main.cpp:9:10: note: candidates are: std::ofstream cout ofstream cout("agora.out"); ^~~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1