Compilare: user.cpp: In function ‘int main()’: user.cpp:31:31: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) ^~~ user.cpp:44:11: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<-1; ^