oj.uz

Submission #601190

# Submission time Handle Problem Language Result Execution time Memory
601190 2022-07-21T12:55:28 Z jjiangly Art Exhibition (JOI18_art) C++14
100 / 100
 198 ms 15664 KB 
#include <bits/stdc++.h>
using namespace std;

#define all(x) x.begin(), x.end()
#define siz(x) int(x.size())
#define ll long long
#define ar array
#define vt vector
#define inf INT_MAX
#define lnf LLONG_MAX

const int nxm = int(5e5) + 7;

int n;
pair<ll, ll> a[nxm];

namespace sub3 {
  void solve() {
    sort(a, a + n);
    for (int i = 1; i < n; ++i) {
      a[i].second += a[i - 1].second;
    }
    ll ans = -lnf;
    for (int i = 0; i < n; ++i) {
      for (int j = i; j < n; ++j) {
        ans = max(ans, a[j].second - (i - 1 >= 0 ? a[i - 1].second : 0) - a[j].first + a[i].first);
      }
    }
    cout << ans << "\n";
  }
};

namespace sub4 {
  void solve() {
    sort(a, a + n);
    for (int i = 1; i < n; ++i) {
      a[i].second += a[i - 1].second;
    }
    ll ans = -lnf;
    ll prf = -lnf;
    for (int i = 0; i < n; ++i) {
      prf = max(prf, a[i].first - (i - 1 >= 0 ? a[i - 1].second : 0));
      ans = max(ans, a[i].second - a[i].first + prf);
    }
    cout << ans << "\n";
  }
};

int subtask() {
  if (n <= 5000) {
    return 3;
  }
  return 4;
};

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  cin >> n;
  for (int i = 0; i < n; ++i) {
    cin >> a[i].first >> a[i].second;
  }
  if (subtask() == 3) {
    sub3::solve();
  } else {
    sub4::solve();
  }

  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 260 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 280 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 260 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 280 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 17 ms 340 KB Output is correct
28 Correct 16 ms 408 KB Output is correct
29 Correct 16 ms 400 KB Output is correct
30 Correct 15 ms 340 KB Output is correct
31 Correct 15 ms 404 KB Output is correct
32 Correct 15 ms 400 KB Output is correct
33 Correct 16 ms 468 KB Output is correct
34 Correct 15 ms 404 KB Output is correct
35 Correct 15 ms 404 KB Output is correct
36 Correct 15 ms 404 KB Output is correct
37 Correct 15 ms 340 KB Output is correct
38 Correct 20 ms 404 KB Output is correct
39 Correct 19 ms 400 KB Output is correct
40 Correct 15 ms 340 KB Output is correct
41 Correct 15 ms 408 KB Output is correct
42 Correct 15 ms 404 KB Output is correct
43 Correct 15 ms 340 KB Output is correct
44 Correct 15 ms 400 KB Output is correct
45 Correct 15 ms 340 KB Output is correct
46 Correct 16 ms 404 KB Output is correct
47 Correct 16 ms 340 KB Output is correct
48 Correct 17 ms 468 KB Output is correct
49 Correct 15 ms 404 KB Output is correct
50 Correct 15 ms 412 KB Output is correct
51 Correct 16 ms 400 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 260 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 280 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 17 ms 340 KB Output is correct
28 Correct 16 ms 408 KB Output is correct
29 Correct 16 ms 400 KB Output is correct
30 Correct 15 ms 340 KB Output is correct
31 Correct 15 ms 404 KB Output is correct
32 Correct 15 ms 400 KB Output is correct
33 Correct 16 ms 468 KB Output is correct
34 Correct 15 ms 404 KB Output is correct
35 Correct 15 ms 404 KB Output is correct
36 Correct 15 ms 404 KB Output is correct
37 Correct 15 ms 340 KB Output is correct
38 Correct 20 ms 404 KB Output is correct
39 Correct 19 ms 400 KB Output is correct
40 Correct 15 ms 340 KB Output is correct
41 Correct 15 ms 408 KB Output is correct
42 Correct 15 ms 404 KB Output is correct
43 Correct 15 ms 340 KB Output is correct
44 Correct 15 ms 400 KB Output is correct
45 Correct 15 ms 340 KB Output is correct
46 Correct 16 ms 404 KB Output is correct
47 Correct 16 ms 340 KB Output is correct
48 Correct 17 ms 468 KB Output is correct
49 Correct 15 ms 404 KB Output is correct
50 Correct 15 ms 412 KB Output is correct
51 Correct 16 ms 400 KB Output is correct
52 Correct 179 ms 15096 KB Output is correct
53 Correct 172 ms 15412 KB Output is correct
54 Correct 198 ms 15348 KB Output is correct
55 Correct 172 ms 15516 KB Output is correct
56 Correct 166 ms 15448 KB Output is correct
57 Correct 180 ms 15452 KB Output is correct
58 Correct 173 ms 15436 KB Output is correct
59 Correct 169 ms 15380 KB Output is correct
60 Correct 169 ms 15440 KB Output is correct
61 Correct 171 ms 15380 KB Output is correct
62 Correct 195 ms 15376 KB Output is correct
63 Correct 174 ms 15452 KB Output is correct
64 Correct 167 ms 15352 KB Output is correct
65 Correct 165 ms 15436 KB Output is correct
66 Correct 167 ms 15620 KB Output is correct
67 Correct 163 ms 15664 KB Output is correct
68 Correct 184 ms 15444 KB Output is correct