Compilare: user.cpp: In function ‘int main()’: user.cpp:164:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &n, &p, &q, &m); ^ user.cpp:167:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &Q[i].s, &Q[i].t); ^