Problem	arcwrecker2
User	carson
Submission Time	2026-01-21 21:41:32
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

arcwrecker2.cpp: In function ‘int main()’:
arcwrecker2.cpp:32:17: error: no match for ‘operator+=’ (operand types are ‘long long int’ and ‘std::unordered_map<long long int, std::vector<int> >::mapped_type’ {aka ‘std::vector<int>’})
32 | cnt += mp[pref];