Problem	playlist2
User	Dolphy
Submission Time	2026-10-10 22:50:07
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

playlist2.cpp: In function ‘int main()’:
playlist2.cpp:11:31: error: ‘class std::vector<int>’ has no member named ‘pb’
11 | if (s=="Push") {cin >> x; v.pb(x); r++; {if (r-l==n) l++;}}
| ^~