Compilare: user.cpp: In function ‘void Lic()’: user.cpp:26:14: warning: variable ‘xi’ set but not used [-Wunused-but-set-variable] int i,ia,ib,xi,yi,p,q,knp,j,s1,s2; ^ user.cpp:26:17: warning: variable ‘yi’ set but not used [-Wunused-but-set-variable] int i,ia,ib,xi,yi,p,q,knp,j,s1,s2; ^ user.cpp: In function ‘int main()’: user.cpp:65:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("licenta.in","r",stdin); ^ user.cpp:66:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("licenta.out","w",stdout); ^ user.cpp:67:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%d\n",&K,&N); ^ user.cpp:69:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&a[i].x,&a[i].y); ^ user.cpp:70:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&M); ^ user.cpp:72:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&b[i].x,&b[i].y); ^ user.cpp: In function ‘int Rqd(int, int, int, int)’: user.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^