Compilare: user.cpp: In function ‘int main()’: user.cpp:42:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (x>s[i] && i<=n) ++i; ^ user.cpp:45:19: warning: variable ‘L’ set but not used [-Wunused-but-set-variable] long long L,l1,l2; ^ user.cpp:45:24: warning: variable ‘l2’ set but not used [-Wunused-but-set-variable] long long L,l1,l2; ^