Compilare: user.cpp: In function ‘int main()’: user.cpp:9:11: warning: unused variable ‘m’ [-Wunused-variable] int n,m,i,j,k; ^ user.cpp:9:15: warning: unused variable ‘j’ [-Wunused-variable] int n,m,i,j,k; ^ user.cpp:9:17: warning: unused variable ‘k’ [-Wunused-variable] int n,m,i,j,k; ^ user.cpp:7:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("valoare.in","r",stdin); ^ user.cpp:8:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("valoare.out","w",stdout); ^ user.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^