Compilare: main.cpp: In function 'int main()': main.cpp:16:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int i = 1; i <= n; i++) ^~~ main.cpp:22:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout << "\n"; ^~~~ main.cpp:17:25: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] for (int j = 1; j <= n; j++) { ~~^~~~