Problem	prefixsums
User	Kannan
Submission Time	2024-01-27 09:45:03
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

prefixsums.cpp: In function ‘int main()’:
prefixsums.cpp:21:16: error: ‘begin’ was not declared in this scope
21 | for(auto &i : a) {
| ^
prefixsums.cpp:21:16: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:95,
from prefixsums.cpp:1:
/usr/include/c++/9/valarray:1224:5: note: ‘std::begin’
1224 | begin(const valarray<_Tp>& __va)
| ^~~~~
In file included from /usr/include/c++/9/filesystem:38,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:129,
from prefixsums.cpp:1:
/usr/include/c++/9/bits/fs_dir.h:516:3: note: ‘std::filesystem::__cxx11::begin’
516 | begin(recursive_directory_iterator __iter) noexcept
| ^~~~~
prefixsums.cpp:21:16: error: ‘end’ was not declared in this scope
21 | for(auto &i : a) {
| ^
prefixsums.cpp:21:16: note: sugges