Compilare: user.cpp: In function ‘int main()’: user.cpp:23:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1; i<=n; i++) ^~~ user.cpp:24:26: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ viz.push_back(0);cout<<viz.size(); ^~~~