Compilare: user.cpp: In function ‘int main()’: user.cpp:17:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, i, j, k, s, ans; ^ user.cpp:17:24: warning: variable ‘s’ set but not used [-Wunused-but-set-variable] int n, m, i, j, k, s, ans; ^ user.cpp:14:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsiruri.in","r",stdin); ^ user.cpp:15:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsiruri.out","w",stdout); ^ user.cpp:20:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d",&n ); ^ user.cpp:22:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d",&v[ i ] ); ^