Problem	ranges
User	kenkunkin
Submission Time	2025-10-31 13:19:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

ranges.cpp: In function ‘int main()’:
ranges.cpp:34:18: error: assignment of member ‘Node::v’ in read-only object
34 | it->v+=X[i];
ranges.cpp:48:43: error: assignment of member ‘Node::v’ in read-only object
48 | for(auto it=itl;it!=itr;++it)it->v+=X[r];
ranges.cpp:54:47: error: assignment of member ‘Node::v’ in read-only object
54 | for(auto it=itl;it!=itr;++it)it->v-=X[l];