Compilare: user.cpp: In function ‘int main()’: user.cpp:95:14: warning: statement has no effect [-Wunused-value] for(i;i <= n; i++) ^ user.cpp:98:14: warning: statement has no effect [-Wunused-value] for(j; j <= m; j++) ^ user.cpp: In function ‘int Insert(const int&, int, int)’: user.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type] } ^