Eroare de compilare: main.cpp: In function 'int main()': main.cpp:32:34: error: no matching function for call to 'lower_bound(std::pair<int, int>&)' it=lower_bound(pc); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, 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_algobase.h:984:5: note: candidate: template<class _ForwardIterator, class _Tp> _ForwardIterator std::lower_bound(_ForwardIterator, _ForwardIterator, const _Tp&) lower_bound(_ForwardIterator __first, _ForwardIterator __last, ^~~~~~~~~~~ /usr/include/c++/6/bits/stl_algobase.h:984:5: note: template argument deduction/substitution failed: main.cpp:32:34: note: candidate expects 3 arguments, 1 provided it=lower_bound(pc); ^ main.cpp:11:13: warning: unused variable 'j' [-Wunused-variable] int n,i,j; ^ Non zero exit status: 1