Compilare: user.cpp: In function ‘int main()’: user.cpp:43:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expozitie.in","r",stdin); ^ user.cpp:44:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expozitie.out","w",stdout); ^ user.cpp:45:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &d, &k); ^ user.cpp: In function ‘void suma(nr, nr, nr&)’: user.cpp:37:5: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(s.cif[s.leg]==t && t!=0) ^ user.cpp: In function ‘int main()’: user.cpp:37:5: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:30:9: note: ‘t’ was declared here int t; ^