Compilare: user.cpp: In function ‘int main()’: user.cpp:7:18: warning: unused variable ‘nr2’ [-Wunused-variable] int i,j,v[11],nr,nr2,n,q=0,k,cnr,vcc[4001],max=0,p,cvcvc,x=0,vccc[4001],o; ^ user.cpp:7:30: warning: variable ‘cnr’ set but not used [-Wunused-but-set-variable] int i,j,v[11],nr,nr2,n,q=0,k,cnr,vcc[4001],max=0,p,cvcvc,x=0,vccc[4001],o; ^ user.cpp:7:58: warning: unused variable ‘x’ [-Wunused-variable] int i,j,v[11],nr,nr2,n,q=0,k,cnr,vcc[4001],max=0,p,cvcvc,x=0,vccc[4001],o; ^ user.cpp:7:62: warning: unused variable ‘vccc’ [-Wunused-variable] int i,j,v[11],nr,nr2,n,q=0,k,cnr,vcc[4001],max=0,p,cvcvc,x=0,vccc[4001],o; ^ user.cpp:5:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pluton.in","r",stdin); ^ user.cpp:6:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pluton.out","w",stdout); ^ user.cpp:8:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:12:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&nr); ^ user.cpp:7:73: warning: ‘o’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i,j,v[11],nr,nr2,n,q=0,k,cnr,vcc[4001],max=0,p,cvcvc,x=0,vccc[4001],o; ^ user.cpp:38:6: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] p++; ^