books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:21:44: error: 'class std::vector<int>' has no member named 'pb'
21 | for (int i=1; i<k; ++i)ans.pb(i);
| ^~
books.cpp:22:21: error: 'class std::vector<int>' has no member named 'pb'
22 | ans.pb(high);
| ^~
books.cpp:26:38: error: 'class std::vector<int>' has no member named 'pb'
26 | for (int i=1; i<=k; ++i)temp.pb(i);
| ^~
books.cpp:27:70: error: 'class std::vector<int>' has no member named 'pb'
27 | for (int i=max(k, high-k); i<high; ++i)vect[i]=skim(i), temp.pb(i);
| ^~
books.cpp:31:54: error: 'class std::vector<int>' has no member named 'pb'
31 | for (int j=i-k; j<i; ++j)ans.pb(temp[j]);
| ^~