Eroare de compilare: main.cpp: In function 'int main()': main.cpp:17:5: error: 'ifstream' was not declared in this scope ifstream in("ciur.in"); ^~~~~~~~ main.cpp:17:5: note: suggested alternative: In file included from /usr/include/c++/6/ios:38:0, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/iosfwd:162:34: note: 'std::ifstream' typedef basic_ifstream<char> ifstream; ^~~~~~~~ main.cpp:19:5: error: 'ofstream' was not declared in this scope ofstream out("ciur.out"); ^~~~~~~~ main.cpp:19:5: note: suggested alternative: In file included from /usr/include/c++/6/ios:38:0, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/iosfwd:165:34: note: 'std::ofstream' typedef basic_ofstream<char> ofstream; ^~~~~~~~ main.cpp:23:5: error: 'in' was not declared in this scope in>>n; ^~ main.cpp:25:22: error: 'N' was not declared in this scope for (i = 2; i <= N; ++i) ^ main.cpp:29:22: error: 'N' was not declared in this scope for (i = 2; i <= N; ++i) ^ main.cpp:45:5: error: 'out' was not declared in this scope out<<cnt; ^~~ Non zero exit status: 1