Compilare: user.cpp: In function ‘int main()’: user.cpp:9:23: warning: unused variable ‘l0’ [-Wunused-variable] int i,q,G,L,K,l,c,l0,c0,lk,ck,p,N; ^ user.cpp:9:26: warning: unused variable ‘c0’ [-Wunused-variable] int i,q,G,L,K,l,c,l0,c0,lk,ck,p,N; ^ user.cpp:9:29: warning: variable ‘lk’ set but not used [-Wunused-but-set-variable] int i,q,G,L,K,l,c,l0,c0,lk,ck,p,N; ^ user.cpp:6:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("banda.in","r",stdin); ^ user.cpp:7:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("banda.out","w",stdout); ^ user.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.cpp:12:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&K); ^ user.cpp:13:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&q); ^ user.cpp:14:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p); ^