Eroare de compilare: main.cpp:3:1: error: 'ifstream' does not name a type ifstream fin("nrtri.in"); ^~~~~~~~ main.cpp:4:1: error: 'ofstream' does not name a type ofstream fout("nrtri.out"); ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:13:5: error: 'fin' was not declared in this scope fin >> n; ^~~ main.cpp:52:5: error: 'fout' was not declared in this scope fout << nrt; ^~~~ Non zero exit status: 1