Problem	4sum
User	RandomCtfNoob
Submission Time	2026-01-21 17:37:09
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

4sum.cpp: In function ‘int main()’:
4sum.cpp:54:10: error: ‘class std::unordered_map<int, std::pair<int, int> >’ has no member named ‘contains’
54 | if (cd.contains(need)) {
| ^~~~~~~~