Compilare: main.cpp: In function 'int main()': main.cpp:22:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for( int x = 1 ; x <= l / 2 ; x ++ ) ^~~ main.cpp:38:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g << p <<endl; ^ main.cpp:38:22: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] g << p <<endl; ^