0_0_16755876_32668.cpp: In function 'int main()':
0_0_16755876_32668.cpp:8:16: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
while(cin>>a) {
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:40:0,
from 0_0_16755876_32668.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = int [1000]]'
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
^
0_0_16755876_32668.cpp:11:16: error: invalid use of non-lvalue array
sum+=a;
^
0_0_16755876_32668.cpp:11:16: error: in evaluation of 'operator+=(int, int [1000])'
0_0_16755876_32668.cpp:12:20: error: lvalue required as decrement operand
while(a--) {
^
0_0_16755876_32668.cpp:13:20: error: invalid use of non-lvalue array
sum+=a;
^
0_0_16755876_32668.cpp:13:20: error: in evaluation of 'operator+=(int, int [1000])'
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