nicelines.cpp:3:1: error: 'vector' does not name a type
3 | vector < long long > cur;
| ^~~~~~
nicelines.cpp: In function 'bool process(long long int, long long int)':
nicelines.cpp:8:22: error: 'query' was not declared in this scope
8 | long double d1 = query(x, lf), d2 = query(x, rf);
| ^~~~~
nicelines.cpp:13:20: error: 'd2' was not declared in this scope; did you mean 'd1'?
13 | if (abs(sum - (d2 - d1)) < eps)
| ^~
| d1
nicelines.cpp:13:9: error: 'abs' was not declared in this scope
13 | if (abs(sum - (d2 - d1)) < eps)
| ^~~
nicelines.cpp:21:33: error: 'floor' was not declared in this scope
21 | bool tf1 = process(lf, (floor)(mid));
| ^~~~~
nicelines.cpp:22:29: error: 'ceil' was not declared in this scope
22 | bool tf2 = process((ceil)(mid), rf);
| ^~~~
nicelines.cpp:24:13: error: 'cur' was not declared in this scope
24 | cur.push_back((round)(mid));
| ^~~
nicelines.cpp:24:28: error: 'round' was not declared in this scope
24 | cur.push_back((round)(mid));
| ^~~~~
nicelines.cpp:28:33: error: 'ceil' was not declared in this scope
28 | bool tf1 = process(lf, (ceil)(mid));
| ^~~~
nicelines.cpp:29:29: error: 'floor' was not declared in this scope
29 | bool tf2 = process((floor)(mid), rf);
| ^~~~~
nicelines.cpp:31:13: error: 'cur' was not declared in this scope
31 | cur.push_back((round)(mid));
| ^~~
nicelines.cpp:31:28: error: 'round' was not declared in this scope
31 | cur.push_back((round)(mid));
| ^~~~~
nicelines.cpp: In function 'void solve(int, int)':
nicelines.cpp:40:5: error: 'cur' was not declared in this scope
40 | cur.clear();
| ^~~
nicelines.cpp:44:5: error: 'vector' was not declared in this scope
44 | vector < long long > it1 = cur;
| ^~~~~~
nicelines.cpp:44:14: error: expected primary-expression before 'long'
44 | vector < long long > it1 = cur;
| ^~~~
nicelines.cpp:45:25: error: 'it1' was not declared in this scope
45 | for (int i = 0; i < it1.size(); i ++)
| ^~~
nicelines.cpp:46:9: error: 'cout' was not declared in this scope
46 | cout << it1[i] << endl;
| ^~~~
nicelines.cpp:46:27: error: 'endl' was not declared in this scope
46 | cout << it1[i] << endl;
| ^~~~
nicelines.cpp:50:14: error: expected primary-expression before 'long'
50 | vector < long long > it2 = cur;
| ^~~~
nicelines.cpp:52:14: error: expected primary-expression before 'int'
52 | vector < int > a, b;
| ^~~
nicelines.cpp:53:25: error: 'it1' was not declared in this scope
53 | for (int i = 0; i < it1.size(); i ++)
| ^~~
nicelines.cpp:56:9: error: 'a' was not declared in this scope
56 | a.push_back((round)(it2[i] - it1[i]));
| ^
nicelines.cpp:56:22: error: 'round' was not declared in this scope
56 | a.push_back((round)(it2[i] - it1[i]));
| ^~~~~
nicelines.cpp:56:29: error: 'it2' was not declared in this scope
56 | a.push_back((round)(it2[i] - it1[i]));
| ^~~
nicelines.cpp:57:9: error: 'b' was not declared in this scope
57 | b.push_back((round)(it2[i] - x * (it2[i] - it1[i])));
| ^
nicelines.cpp:60:19: error: 'a' was not declared in this scope
60 | the_lines_are(a, b);
| ^
nicelines.cpp:60:22: error: 'b' was not declared in this scope
60 | the_lines_are(a, b);
| ^
nicelines.cpp:60:5: error: 'the_lines_are' was not declared in this scope
60 | the_lines_are(a, b);
| ^~~~~~~~~~~~~