Compilare: user.cpp: In function ‘int main()’: user.cpp:159:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(scanf("%d", &test_count); test_count > 0; test_count--) { ^ user.cpp:160:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", seq); ^