Compilare: user.cpp: In function ‘int main()’: user.cpp:35:19: warning: unused variable ‘j’ [-Wunused-variable] int cer,n,m,i,j,nr1,nr2,notr,notu,ine,iprev,rne,sr,jne,jprev,une,su,uprev,rprev,maxx=0,nott1,nott2,x,cnt,y,ruprev,xx; ^ user.cpp:33:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] { freopen("admitere.in", "r",stdin); ^ user.cpp:34:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("admitere.out", "w",stdout); ^ user.cpp:36:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &cer, &n, &m); ^ user.cpp:38:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &real1[i]); ^ user.cpp:40:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &uman1[i]); ^ user.cpp:42:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &real2[i].val); ^ user.cpp:43:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &uman2[i].val); ^ user.cpp:142:17: warning: ‘xx’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(cnt<xx){ ^