Compilare: main.cpp: In function 'int main()': main.cpp:29:34: 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); ^ main.cpp:30:36: 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); ^ main.cpp:33:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:35:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ main.cpp:67:36: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[i] > x && best[i] == y-1) ~^~ main.cpp:67:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[i] > x && best[i] == y-1) ^~