Borderou de evaluare (job #800793)

Eroare de compilare: main.cpp:5:19: error: 'int index' redeclared as different kind of entity 5 | int n, k, index; | ^~~~~ In file included from /usr/include/string.h:462, from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/cstring:43, from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/i686-pc-linux-gnu/bits/stdc++.h:121, from main.cpp:1: /usr/include/strings.h:61:1: note: previous declaration 'const char* index(const char*, int)' 61 | index (const char *__s, int __c) __THROW | ^~~~~ main.cpp: In function 'void backtrack(int)': main.cpp:11:23: error: no post-increment operator for type 11 | {index++; | ^~ main.cpp:12:25: error: no matching function for call to 'find(std::vector<int>::iterator, std::vector<int>::iterator, <unresolved overloaded function type>)' 12 | if(find(A.begin(), A.end(), index)!=A.end()) | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/algorithm:61, from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/i686-pc-linux-gnu/bits/stdc++.h:51: /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/bits/stl_algo.h:3841:5: note: candidate: 'template<class _IIter, class _Tp> _IIter std::find(_IIter, _IIter, const _Tp&)' 3841 | find(_InputIterator __first, _InputIterator __last, | ^~~~ /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/bits/stl_algo.h:3841:5: note: template argument deduction/substitution failed: main.cpp:12:25: note: couldn't deduce template parameter '_Tp' 12 | if(find(A.begin(), A.end(), index)!=A.end()) | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/iterator:66, from /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/i686-pc-linux-gnu/bits/stdc++.h:54: /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/bits/streambuf_iterator.h:435:5: note: candidate: 'template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT, std::char_traits<_CharT> > >::__type std::find(istreambuf_iterator<_CharT, char_traits<_CharT> >, istreambuf_iterator<_CharT, char_traits<_CharT> >, const _CharT2&)' 435 | find(istreambuf_iterator<_CharT> __first, | ^~~~ /usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14/bits/streambuf_iterator.h:435:5: note: template argument deduction/substitution failed: main.cpp:12:25: note: '__gnu_cxx::__normal_iterator<int*, std::vector<int> >' is not derived from 'std::istreambuf_iterator<_CharT, std::char_traits<_CharT> >' 12 | if(find(A.begin(), A.end(), index)!=A.end()) | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:33:16: error: overloaded function with no contextual type information 33 | index=0; | ^