Owl Get a Life

Compile Error

rollercoaster.cpp: In function ‘int main()’:
rollercoaster.cpp:16:2: error: ‘vector’ was not declared in this scope
16 | vector<ll> columns;
| ^~~~~~
rollercoaster.cpp:3:1: note: ‘std::vector’ is defined in header ‘<vector>’; did you forget to ‘#include <vector>’?
2 | #include <set>
+++ |+#include <vector>
3 | typedef long long int ll;
rollercoaster.cpp:16:11: error: expected primary-expression before ‘>’ token
16 | vector<ll> columns;
| ^
rollercoaster.cpp:16:13: error: ‘columns’ was not declared in this scope; did you mean ‘columns_n’?
16 | vector<ll> columns;
| ^~~~~~~
| columns_n