Compilare: main.cpp: In function 'int main()': main.cpp:6:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("vila2.in","r",stdin); ^ main.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("vila2.out","w",stdout); ^ main.cpp:9:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ",&n,&k); ^ main.cpp:11:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&v[i]); ^ main.cpp:25:18: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] if(i>1&&c>dif) ~^~~~