Compilare: user.cpp: In function ‘int main()’: user.cpp:35:17: warning: unused variable ‘found’ [-Wunused-variable] int found = -1; ^ user.cpp:8:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:10:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &tip, &x); ^