Compilare: user.cpp: In function ‘int main()’: user.cpp:15:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=0;i<n;i++) ^~~ user.cpp:17:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ bool ok; ^~~~