Compilare: user.cpp: In function ‘int main()’: user.cpp:50:13: warning: unused variable ‘a’ [-Wunused-variable] int i,n,a,cnt=0,nr=1,j=1,maxx,maxime=0,b,m,flag; ^ user.cpp:50:48: warning: variable ‘flag’ set but not used [-Wunused-but-set-variable] int i,n,a,cnt=0,nr=1,j=1,maxx,maxime=0,b,m,flag; ^ user.cpp:48:35: 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:49:37: 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:51:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:54:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i].cod); ^