Compilare: main.cpp: In function 'int main()': main.cpp:28:8: warning: unused variable 'a' [-Wunused-variable] dd a,b,c; ^ main.cpp:28:10: warning: unused variable 'b' [-Wunused-variable] dd a,b,c; ^ main.cpp:28:12: warning: unused variable 'c' [-Wunused-variable] dd a,b,c; ^ main.cpp:26:42: 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); ^ main.cpp:27:44: 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); ^ main.cpp:32:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:33:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf",&ll.x,&ll.y); ^ main.cpp:36:40: 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); ^