Eroare de compilare: main.cpp: In function 'int main()': main.cpp:83:3: error: 'ifstream' was not declared in this scope; did you mean 'std::ifstream'? 83 | ifstream f ("biscuiti.in"); | ^~~~~~~~ | std::ifstream In file included from /usr/include/c++/10/ios:38, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/iosfwd:162:34: note: 'std::ifstream' declared here 162 | typedef basic_ifstream<char> ifstream; | ^~~~~~~~ main.cpp:84:3: error: 'f' was not declared in this scope 84 | f >> n; | ^ main.cpp:99:3: error: 'ofstream' was not declared in this scope; did you mean 'std::ofstream'? 99 | ofstream g ("biscuiti.out"); | ^~~~~~~~ | std::ofstream In file included from /usr/include/c++/10/ios:38, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/iosfwd:165:34: note: 'std::ofstream' declared here 165 | typedef basic_ofstream<char> ofstream; | ^~~~~~~~ main.cpp:100:3: error: 'g' was not declared in this scope 100 | g << s2; | ^ main.cpp:81:27: warning: unused variable 'j' [-Wunused-variable] 81 | long long s2 = 0, i, n, j, s1 = 0, poz; | ^ main.cpp:81:30: warning: unused variable 's1' [-Wunused-variable] 81 | long long s2 = 0, i, n, j, s1 = 0, poz; | ^~ Non zero exit status: 1