Eroare de compilare: main.cpp:5:12: error: variable 'std::ifstream in' has initializer but incomplete type 5 | ifstream in("perm.in"); | ^ main.cpp:6:13: error: variable 'std::ofstream out' has initializer but incomplete type 6 | ofstream out("perm.out"); | ^ main.cpp: In function 'int main()': main.cpp:14:19: warning: self-comparison always evaluates to true [-Wtautological-compare] 14 | for (int n=1;n<=n;n++) | ~^~~ main.cpp:15:23: warning: self-comparison always evaluates to true [-Wtautological-compare] 15 | for (int k=1;k<=k;k++) | ~^~~ Non zero exit status: 1