Compilare: user.cpp: In function ‘void Solve()’: user.cpp:82:9: warning: unused variable ‘p’ [-Wunused-variable] int i,j,p=n; ^ user.cpp: In function ‘void Read()’: user.cpp:26:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuiburi.in","r",stdin); ^ user.cpp:27:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:30:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&val); ^ user.cpp:32:71: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&a[i].x1,&a[i].y1,&a[i].x2,&a[i].y2); ^ user.cpp:36:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&a[i].x1,&a[i].y1,&a[i].r); ^ user.cpp: In function ‘void Write()’: user.cpp:99:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuiburi.out","w",stdout); ^