Compilare: user.cpp: In function ‘int main()’: user.cpp:74:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j,cnt; ^ user.cpp:74:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,cnt; ^ user.cpp:74:13: warning: unused variable ‘cnt’ [-Wunused-variable] int i,j,cnt; ^ user.cpp:76:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("produse.in","r",stdin); ^ user.cpp:77:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("produse.out","w",stdout); ^ user.cpp: In function ‘void Read()’: user.cpp:16:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:19:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^