Eroare de compilare: main.cpp: In function 'int main()': main.cpp:30:34: error: no match for 'operator>=' (operand types are 'int' and 'punct') while(!st.empty()&&a[i].x>=a[st.back()]) st.pop_back(); ~~~~~~^~~~~~~~~~~~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:64:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_pair.h:466:5: note: candidate: template<class _T1, class _T2> constexpr bool std::operator>=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&) operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) ^~~~~~~~ /usr/include/c++/6/bits/stl_pair.h:466:5: note: template argument deduction/substitution failed: main.cpp:30:47: note: mismatched types 'const std::pair<_T1, _T2>' and 'int' while(!st.empty()&&a[i].x>=a[st.back()]) st.pop_back(); ^ In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator.h:322:5: note: candidate: template<class _Iterator> bool std::operator>=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) operator>=(const reverse_iterator<_Iterator>& __x, ^~~~~~~~ /usr/include/c++/6/bits/stl_iterator.h:322:5: note: template argument deduction/substitution failed: main.cpp:30:47: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'int' while(!st.empty()&&a[i].x>=a[st.back()]) st.pop_back(); ^ In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator.h:379:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator>=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&) operator>=(const reverse_iterator<_IteratorL>& __x, ^~~~~~~~ /usr/include/c++/6/bits/stl_iterator.h:379:5: note: template argument deduction/substitution failed: main.cpp:30:47: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'int' while(!st.empty()&&a[i].x>=a[st.back()]) st.pop_back(); ^ In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator.h:1173:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator>=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) Non zero exit status: 1