Compilare: user.cpp: In function ‘int main()’: user.cpp:12:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, t, d, ma; ^ user.cpp:12:18: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, t, d, ma; ^ user.cpp:12:21: warning: unused variable ‘d’ [-Wunused-variable] int n, i, j, t, d, ma; ^ user.cpp:12:24: warning: unused variable ‘ma’ [-Wunused-variable] int n, i, j, t, d, ma; ^ user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("buget.in","r",stdin); ^ user.cpp:10:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("buget.out","w",stdout); ^ user.cpp:15:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld",&n,&k); ^ 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]); ^