Submission #1318109

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318109		kawhiet	Global Warming (CEOI18_glo)	C++20	Compilation error	0 ms	0 KiB

glo

a#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, x;
    cin >> n >> x;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<int> l(n), r(n);
    set<int> s;
    for (int i = 0; i < n; i++) {
        auto it = s.lower_bound(a[i]);
        if (it != s.end()) {
            s.erase(it);
        }
        s.insert(a[i]);
        l[i] = s.size();
    }
    set<int> t;
    for (int i = n - 1; i >= 0; i--) {
        auto it = t.lower_bound(-a[i]);
        if (it != t.end()) {
            t.erase(it);
        }
        t.insert(-a[i]);
        r[i] = t.size();
    }
    int ans = s.size();
    for (int i = 0; i < n; i++) {
        for (int j = i + 1; j < n; j++) {
            if (a[i] - a[j] < x) {
                ans = max(ans, l[i] + r[j]);
            }
        }
    }
    cout << ans << '\n';
    return 0;
}

Compilation message (stderr)

glo.cpp:1:2: error: stray '#' in program
    1 | a#include <bits/stdc++.h>
      |  ^
glo.cpp:1:1: error: 'a' does not name a type
    1 | a#include <bits/stdc++.h>
      | ^
glo.cpp: In function 'int main()':
glo.cpp:5:5: error: 'ios' has not been declared
    5 |     ios::sync_with_stdio(false);
      |     ^~~
glo.cpp:6:5: error: 'cin' was not declared in this scope
    6 |     cin.tie(nullptr);
      |     ^~~
glo.cpp:9:5: error: 'vector' was not declared in this scope
    9 |     vector<int> a(n);
      |     ^~~~~~
glo.cpp:9:12: error: expected primary-expression before 'int'
    9 |     vector<int> a(n);
      |            ^~~
glo.cpp:11:16: error: 'a' was not declared in this scope
   11 |         cin >> a[i];
      |                ^
glo.cpp:13:12: error: expected primary-expression before 'int'
   13 |     vector<int> l(n), r(n);
      |            ^~~
glo.cpp:14:5: error: 'set' was not declared in this scope
   14 |     set<int> s;
      |     ^~~
glo.cpp:14:9: error: expected primary-expression before 'int'
   14 |     set<int> s;
      |         ^~~
glo.cpp:16:19: error: 's' was not declared in this scope
   16 |         auto it = s.lower_bound(a[i]);
      |                   ^
glo.cpp:16:33: error: 'a' was not declared in this scope
   16 |         auto it = s.lower_bound(a[i]);
      |                                 ^
glo.cpp:21:9: error: 'l' was not declared in this scope
   21 |         l[i] = s.size();
      |         ^
glo.cpp:23:9: error: expected primary-expression before 'int'
   23 |     set<int> t;
      |         ^~~
glo.cpp:25:19: error: 't' was not declared in this scope; did you mean 'it'?
   25 |         auto it = t.lower_bound(-a[i]);
      |                   ^
      |                   it
glo.cpp:25:34: error: 'a' was not declared in this scope
   25 |         auto it = t.lower_bound(-a[i]);
      |                                  ^
glo.cpp:30:9: error: 'r' was not declared in this scope
   30 |         r[i] = t.size();
      |         ^
glo.cpp:32:15: error: 's' was not declared in this scope
   32 |     int ans = s.size();
      |               ^
glo.cpp:35:17: error: 'a' was not declared in this scope
   35 |             if (a[i] - a[j] < x) {
      |                 ^
glo.cpp:36:32: error: 'l' was not declared in this scope
   36 |                 ans = max(ans, l[i] + r[j]);
      |                                ^
glo.cpp:36:39: error: 'r' was not declared in this scope
   36 |                 ans = max(ans, l[i] + r[j]);
      |                                       ^
glo.cpp:36:23: error: 'max' was not declared in this scope
   36 |                 ans = max(ans, l[i] + r[j]);
      |                       ^~~
glo.cpp:40:5: error: 'cout' was not declared in this scope
   40 |     cout << ans << '\n';
      |     ^~~~