Compilare: main.cpp: In function 'int main()': main.cpp:41:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 2; i <= n; i++) ^~~ main.cpp:43:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout << ((ans << 1) | 1) << "\n"; ^~~~