Eroare de compilare: main.cpp:9:5: error: 'int index' redeclared as different kind of symbol int index, X; ^~~~~ In file included from /usr/include/c++/6/cstring:42:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:48, from main.cpp:1: /usr/include/string.h:477:1: note: previous declaration 'const char* index(const char*, int)' index (const char *__s, int __c) __THROW ^~~~~ main.cpp: In function 'int exist(long long int)': main.cpp:17:11: error: reference to 'hash' is ambiguous int l=hash[ind].size(); ^~~~ main.cpp:8:14: note: candidates are: std::vector<int> hash [666013] vector <int> hash[666013]; ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ main.cpp:19:14: error: reference to 'hash' is ambiguous if (hash[ind][i]==x ) ^~~~ main.cpp:8:14: note: candidates are: std::vector<int> hash [666013] vector <int> hash[666013]; ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ Non zero exit status: 1