holiday.cpp: In function 'll findMaxAttraction(ll, ll, ll, ll*)':
holiday.cpp:20:28: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
20 | while(st.size()>d){
| ~~~~~~~~~^~
holiday.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type]
29 | }
| ^
/usr/bin/ld: /tmp/ccd2uneO.o: in function `main':
grader.cpp:(.text.startup+0xaf): undefined reference to `findMaxAttraction(int, int, int, int*)'
collect2: error: ld returned 1 exit status