Compilare: user.cpp: In function ‘int main()’: user.cpp:76:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc19.in","r",stdin); ^ user.cpp:77:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc19.out","w",stdout); ^ user.cpp:78:88: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=6;i++)scanf("%d%d%d%d",&Start[i].a,&Start[i].b,&Start[i].c,&Start[i].d); ^ user.cpp:79:80: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=6;i++)scanf("%d%d%d%d",&End[i].a,&End[i].b,&End[i].c,&End[i].d); ^