Problem	fenwicktree
User	Kiameimon
Submission Time	2025-03-09 19:55:48
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

fenwicktree.cpp:11:1: error: ‘concept’ does not name a type
11 | concept Iterator = requires(Iter it) {
| ^~~~~~~
fenwicktree.cpp:11:1: note: ‘concept’ only available with ‘-fconcepts’
fenwicktree.cpp:38:15: error: ‘Iterator’ has not been declared
38 | template <Iterator Iter>
| ^~~~~~~~
fenwicktree.cpp:39:34: error: expected ‘)’ before ‘start’
39 | explicit LazyPropSegtree(Iter start, Iter end, T identityOp, U identityUpdate);
| ~ ^~~~~~
| )
fenwicktree.cpp:67:10: error: ‘Iterator’ has not been declared
67 | template<Iterator Iter>
| ^~~~~~~~
fenwicktree.cpp:68:60: error: expected constructor, destructor, or type conversion before ‘(’ token
68 | LazyPropSegtree<T, U, op, updVal, updLazy>::LazyPropSegtree(Iter start, Iter end, T identityOp, U identityUpdate)
|