Problem	rollercoaster
User	vinitara
Submission Time	2025-06-26 22:17:38
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

rollercoaster.cpp: In function ‘int main()’:
rollercoaster.cpp:9:5: error: expected initializer before ‘for’
9 | for(int i=0;i<N;i++) cin>>arr[i];
| ^~~
rollercoaster.cpp:9:17: error: ‘i’ was not declared in this scope
9 | for(int i=0;i<N;i++) cin>>arr[i];
| ^
rollercoaster.cpp:12:37: error: ‘arr’ was not declared in this scope
12 | for(int i=0;i<K;i++) ms.insert(arr[i]);
| ^~~
rollercoaster.cpp:19:30: error: ‘arr’ was not declared in this scope
19 | ms.erase(ms.find(arr[i]));
| ^~~