Compilare: user.cpp: In function ‘int main()’: user.cpp:24:10: warning: unused variable ‘x’ [-Wunused-variable] double x,y,unghi,lst = 0,ma; ^ user.cpp:24:12: warning: unused variable ‘y’ [-Wunused-variable] double x,y,unghi,lst = 0,ma; ^ user.cpp:19:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.in","r",stdin); ^ user.cpp:20:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.out","w",stdout); ^ user.cpp:21:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&N); ^ user.cpp:26:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf ",&V[i].x,&V[i].y); ^