Compilare: user.cpp: In function ‘int main()’: user.cpp:12:11: warning: unused variable ‘p’ [-Wunused-variable] int i,p,p2,s = 0; ^ user.cpp:12:13: warning: unused variable ‘p2’ [-Wunused-variable] int i,p,p2,s = 0; ^ user.cpp:12:16: warning: unused variable ‘s’ [-Wunused-variable] int i,p,p2,s = 0; ^ user.cpp:14:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("borcane.in","r",stdin); ^ user.cpp:15:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("borcane.out","w",stdout); ^ user.cpp:17:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ 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]); ^