Compilare: user.cpp: In function ‘int main()’: user.cpp:40:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, s, t, d, k, ma; ^ user.cpp:40:18: warning: unused variable ‘s’ [-Wunused-variable] int n, i, j, s, t, d, k, ma; ^ user.cpp:40:21: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, s, t, d, k, ma; ^ user.cpp:40:24: warning: unused variable ‘d’ [-Wunused-variable] int n, i, j, s, t, d, k, ma; ^ user.cpp:37:34: 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:38:36: 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:42:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:44:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp:65:17: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] afisare( k ); ^