Problem	shops
User	KCL
Submission Time	2025-02-25 17:39:24
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

shops.cpp: In function ‘constexpr int& parentof(int)’:
shops.cpp:11:46: error: call to non-‘constexpr’ function ‘std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = elm; _Alloc = std::allocator<elm>; std::vector<_Tp, _Alloc>::reference = elm&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]’
11 | constexpr int& parentof(int v) { return dsu[v].parent; }
| ^
shops.cpp: In function ‘constexpr int& rankof(int)’:
shops.cpp:12:44: error: call to non-‘constexpr’ function ‘std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = elm; _Alloc = std::allocator<elm>; std::vector<_Tp, _Alloc>::reference = elm&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]’
12 | constexpr int& rankof(int v) { return ds