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Submission #255260

# Submission time Handle Problem Language Result Execution time Memory
255260 2020-07-31T16:39:24 Z tuna Divide and conquer (IZhO14_divide) C++11
100 / 100
 852 ms 100784 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll N = 1e6 + 5, M = 2e14;

int n;
ll x[N], g[N], d[N];

map<ll, ll> tree;

void upd(ll k, ll x) {
  while (k < M) {
    if (tree.find(k) == tree.end()) {
      tree[k] = x;
    } else {
      tree[k] = min(tree[k], x);
    }
    k += k & -k;
  }
}

ll que(ll k) {
  ll ans = LLONG_MAX;
  while (k) {
    if (tree.find(k) != tree.end()) {
      ans = min(ans, tree[k]);
    }
    k -= k & -k;
  }
  return ans;
}

int32_t main() {
  cin.tie(0)->sync_with_stdio(0);
  cin >> n;
  for (int i = 1; i <= n; i++) {
    cin >> x[i] >> g[i] >> d[i];
    d[i] += d[i - 1];
    g[i] += g[i - 1];
  }
  ll ans = 0;
  for (int i = 1; i <= n; i++) {
    upd(d[i - 1] - x[i] + M / 2, g[i - 1]);
    ans = max(ans, g[i] - que(d[i] - x[i] + M / 2));
  }
  cout << ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 3 ms 640 KB Output is correct
16 Correct 4 ms 896 KB Output is correct
17 Correct 5 ms 1024 KB Output is correct
18 Correct 8 ms 1536 KB Output is correct
19 Correct 6 ms 1024 KB Output is correct
20 Correct 7 ms 1024 KB Output is correct
21 Correct 6 ms 768 KB Output is correct
22 Correct 7 ms 1024 KB Output is correct
23 Correct 21 ms 3456 KB Output is correct
24 Correct 22 ms 3456 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 3 ms 640 KB Output is correct
16 Correct 4 ms 896 KB Output is correct
17 Correct 5 ms 1024 KB Output is correct
18 Correct 8 ms 1536 KB Output is correct
19 Correct 6 ms 1024 KB Output is correct
20 Correct 7 ms 1024 KB Output is correct
21 Correct 6 ms 768 KB Output is correct
22 Correct 7 ms 1024 KB Output is correct
23 Correct 21 ms 3456 KB Output is correct
24 Correct 22 ms 3456 KB Output is correct
25 Correct 26 ms 1920 KB Output is correct
26 Correct 57 ms 3960 KB Output is correct
27 Correct 61 ms 7032 KB Output is correct
28 Correct 347 ms 34344 KB Output is correct
29 Correct 351 ms 34680 KB Output is correct
30 Correct 852 ms 100784 KB Output is correct
31 Correct 723 ms 68476 KB Output is correct
32 Correct 727 ms 68600 KB Output is correct
33 Correct 670 ms 35576 KB Output is correct
34 Correct 456 ms 23900 KB Output is correct
35 Correct 512 ms 49840 KB Output is correct
36 Correct 539 ms 49400 KB Output is correct