Eroare de compilare: main.cpp: In function 'long long int f(int)': main.cpp:9:18: error: 'long long int f(int)' redeclared as different kind of symbol long long f(int m){ ^ main.cpp:5:10: note: previous declaration 'std::ifstream f' ifstream f ("pikachu.in"); ^ main.cpp: In function 'int main()': main.cpp:30:16: error: no match for call to '(std::ifstream {aka std::basic_ifstream<char>}) (long long int&)' X = f(m); ^ main.cpp:31:20: error: no match for call to '(std::ifstream {aka std::basic_ifstream<char>}) (long long int)' Y = f(m - 1); ^ main.cpp:32:20: error: no match for call to '(std::ifstream {aka std::basic_ifstream<char>}) (long long int)' Z = f(m + 1); ^ Non zero exit status: 1