Compilare: user.cpp: In function ‘int main()’: user.cpp:4:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("transport.in", "r", stdin); ^ user.cpp:5:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("transport.out", "w", stdout); ^ user.cpp:8:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%lld %lld", &n, &k); ^ user.cpp:11:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%lld", &v[i]); ^ user.cpp:26:9: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (s>m && i==n) ^