Problem	swapsort
User	friendlyfexr
Submission Time	2026-06-28 21:54:35
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

swapsort.cpp: In function ‘int main()’:
swapsort.cpp:29:21: error: ‘class std::unordered_set<int>’ has no member named ‘contains’
29 | if (fragIdx.contains(Lj-1)) {
| ^~~~~~~~
swapsort.cpp:34:21: error: ‘class std::unordered_set<int>’ has no member named ‘contains’
34 | if (fragIdx.contains(Rj-1)) {
| ^~~~~~~~