Compilare: user.cpp: In function ‘int main()’: user.cpp:68:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("split.in","r",stdin); ^ user.cpp:69:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("split.out","w",stdout); ^ user.cpp:71:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld\n",&n); ^ user.cpp:72:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++) scanf("%ld",&a[i]); ^ user.cpp: In function ‘long int Try(long int, long int, long int)’: user.cpp:54:60: warning: ‘local’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(put == 1) localFirst = local; else localLast = local; ^