Compilare: user.cpp: In function ‘int main()’: user.cpp:33:11: warning: unused variable ‘b’ [-Wunused-variable] int n,b,fn=1,fs=1,fns=1,invs,invns,i,cp,cn,s,p; ^ user.cpp:33:45: warning: variable ‘cn’ set but not used [-Wunused-but-set-variable] int n,b,fn=1,fs=1,fns=1,invs,invns,i,cp,cn,s,p; ^ user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("functii.in","r",stdin); ^ user.cpp:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("functii.out","w",stdout); ^ user.cpp:34:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&s); ^