Compilare: user.cpp: In function ‘int main()’: user.cpp:33:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, t, k, ma; ^ user.cpp:33:18: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, t, k, ma; ^ user.cpp:30:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scmax.in","r",stdin); ^ user.cpp:31:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scmax.out","w",stdout); ^ user.cpp:35:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:37:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp:63:12: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] afis(k); ^