Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:25:26: error: reference to ‘next’ is ambiguous if(col[j]) j=next[col[j]]+1; ^ user.cpp:4:52: note: candidates are: long long int next [1000005] long long n, a[nmax], b[nmax], c[nmax], col[nmax], next[nmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:29:17: error: reference to ‘next’ is ambiguous next[col[i]]=i; ^ user.cpp:4:52: note: candidates are: long long int next [1000005] long long n, a[nmax], b[nmax], c[nmax], col[nmax], next[nmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:34:30: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n", col[i]); ^ user.cpp:7:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("curcubeu.in", "r", stdin); ^ user.cpp:8:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("curcubeu.out", "w", stdout); ^ user.cpp:10:58: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld", &n, &a[1], &b[1], &c[1]); ^