Eroare de compilare: user.cpp:10:30: error: ‘std::tr1::unordered_map<int, int> div’ redeclared as different kind of symbol tr1::unordered_map<int, int> div; ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/ext/string_conversions.h:41, from /usr/include/c++/4.8/bits/basic_string.h:2815, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/stdlib.h:785:14: error: previous declaration of ‘div_t div(int, int)’ extern div_t div (int __numer, int __denom) ^ user.cpp: In function ‘int main()’: user.cpp:79:19: error: ‘std::div’ does not have class type if(div.count(v[i])) ^ user.cpp:81:34: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript s.insert(div[v[i]]); ^ user.cpp:94:21: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript div[temp] = d; ^ user.cpp:76:13: warning: unused variable ‘cnt’ [-Wunused-variable] int cnt=0; ^