Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:24:1: error: ‘ifstream’ was not declared in this scope ifstream f("tsunami.in"); ^ user.cpp:24:10: error: expected ‘;’ before ‘f’ ifstream f("tsunami.in"); ^ user.cpp:25:1: error: ‘ofstream’ was not declared in this scope ofstream g("tsunami.out"); ^ user.cpp:25:10: error: expected ‘;’ before ‘g’ ofstream g("tsunami.out"); ^ user.cpp:26:1: error: ‘f’ was not declared in this scope f>>n>>m>>k; ^ user.cpp:35:1: error: ‘g’ was not declared in this scope g<<nr; ^