Compilare: main.cpp: In function 'int main()': main.cpp:27:17: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:29:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' exit(0); ^~~~ main.cpp:84:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (i=1; i<=n; i++) ^~~ main.cpp:120:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<-1<<'\n'; ^~~~