Eroare de compilare: main.cpp:5:1: error: 'ifstream' does not name a type ifstream f ("abc2.in"); ^~~~~~~~ main.cpp:6:1: error: 'ofstream' does not name a type ofstream g ("abc2.out"); ^~~~~~~~ main.cpp:8:9: error: 'pair' does not name a type typedef pair < int, int > PII; ^~~~ main.cpp: In function 'int main()': main.cpp:50:5: error: 'f' was not declared in this scope f.tie(nullptr); ^ main.cpp:112:5: error: 'g' was not declared in this scope g << ans << '\n'; ^ Non zero exit status: 1