Compilare: user.cpp: In function ‘int main()’: user.cpp:50:20: warning: use of ‘ll’ length modifier with ‘f’ type character [-Wformat=] printf("%llf\n", z); ^ user.cpp:66:21: warning: use of ‘ll’ length modifier with ‘f’ type character [-Wformat=] printf("%llf\n", s); ^ user.cpp:44:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("desen.in", "r", stdin); ^ user.cpp:45:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("desen.out", "w", stdout); ^ user.cpp:46:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &n); ^ user.cpp:48:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &puncte[i].x, &puncte[i].y); ^