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Submission #1093146

# Submission time Handle Problem Language Result Execution time Memory
1093146 2024-09-26T03:15:12 Z juicy Stranded Far From Home (BOI22_island) C++17
10 / 100
 330 ms 524288 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 2e5 + 5;

int n, m;
int a[N], pr[N];
long long s[N];
bool lose[N];

int find(int u) {
  if (u == pr[u]) {
    return u;
  }
  int p = find(pr[u]);
  lose[u] |= lose[pr[u]];
  return pr[u] = p;
}

int main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  cin >> n >> m;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
    pr[i] = i, s[i] = a[i];
  }
  vector<array<int, 2>> e;
  while (m--) {
    int x, y; cin >> x >> y;
    if (a[x] > a[y]) {
      swap(x, y);
    }
    e.push_back({x, y});
  }
  sort(e.begin(), e.end(), [&](auto i, auto j) {
    return a[i[1]] < a[j[1]];
  });
  for (auto [u, v] : e) {
    u = find(u);
    if (u ^ v) {
      lose[u] = s[u] < a[v];
      pr[u] = v;
      s[v] += s[u];
    }
  }
  for (int i = 1; i <= n; ++i) {
    find(i);
    cout << (lose[i] ? 0 : 1);
  }
  return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Runtime error 255 ms 524288 KB Execution killed with signal 9
7 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 62 ms 5580 KB Output is correct
4 Correct 47 ms 8648 KB Output is correct
5 Correct 62 ms 9504 KB Output is correct
6 Correct 63 ms 9924 KB Output is correct
7 Correct 72 ms 9928 KB Output is correct
8 Correct 67 ms 9972 KB Output is correct
9 Correct 60 ms 9928 KB Output is correct
10 Correct 45 ms 9160 KB Output is correct
11 Correct 57 ms 9928 KB Output is correct
12 Correct 53 ms 8648 KB Output is correct
13 Correct 52 ms 8420 KB Output is correct
14 Correct 48 ms 8652 KB Output is correct
15 Correct 63 ms 9988 KB Output is correct
16 Correct 44 ms 9168 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 68 ms 5580 KB Output is correct
3 Correct 67 ms 5664 KB Output is correct
4 Correct 52 ms 5580 KB Output is correct
5 Correct 48 ms 5592 KB Output is correct
6 Correct 71 ms 5588 KB Output is correct
7 Correct 65 ms 5580 KB Output is correct
8 Correct 70 ms 10192 KB Output is correct
9 Correct 42 ms 9160 KB Output is correct
10 Incorrect 51 ms 9252 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 330 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Runtime error 255 ms 524288 KB Execution killed with signal 9
7 Halted 0 ms 0 KB -