Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result In file included from /usr/include/c++/4.4/bits/stl_algobase.h:67, from /usr/include/c++/4.4/algorithm:61, from user.cpp:2: /usr/include/c++/4.4/bits/stl_iterator_base_types.h: At global scope: /usr/include/c++/4.4/bits/stl_iterator_base_types.h: In instantiation of ‘std::iterator_traits<int>’: /usr/include/c++/4.4/bits/stl_algo.h:5210: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_iterator_base_types.h:127: error: ‘int’ is not a class, struct, or union type /usr/include/c++/4.4/bits/stl_iterator_base_types.h:128: error: ‘int’ is not a class, struct, or union type /usr/include/c++/4.4/bits/stl_iterator_base_types.h:129: error: ‘int’ is not a class, struct, or union type /usr/include/c++/4.4/bits/stl_iterator_base_types.h:130: error: ‘int’ is not a class, struct, or union type /usr/include/c++/4.4/bits/stl_iterator_base_types.h:131: error: ‘int’ is not a class, struct, or union type In file included from /usr/include/c++/4.4/algorithm:62, from user.cpp:2: /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = int, _Size = int]’: /usr/include/c++/4.4/bits/stl_algo.h:5220: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2268: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h:2268: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h:2268: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’: /usr/include/c++/4.4/bits/stl_algo.h:2178: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2106: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h:2178: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2105: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__unguarded_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’: /usr/include/c++/4.4/bits/stl_algo.h:2179: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2148: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’: /usr/include/c++/4.4/bits/stl_algo.h:5067: instantiated from ‘void std::partial_sort(_RAIter, _RAIter, _RAIter) [with _RAIter = int]’ /usr/include/c++/4.4/bits/stl_algo.h:2256: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = int, _Size = int]’ /usr/include/c++/4.4/bits/stl_algo.h:5220: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = int]’ user.cpp:53: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:1906: error: invalid type argument of ‘unary *’ /usr/include/c++/4.4/bits/stl_algo.h:1906: error: invalid type argument of ‘unary *’ In file included from /usr/include/c++/4.4/bits/stl_algo.h:62, from /usr/include/c++/4.4/algorithm:62, from user.cpp:2: /usr/include/c++/4.4/bits/stl_heap.h: In function ‘void std::__pop_heap(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = int]’: