oj.uz

Submission #805413

# Submission time Handle Problem Language Result Execution time Memory
805413 2023-08-03T16:30:51 Z peijar Koala Game (APIO17_koala) C++17
100 / 100
 48 ms 568 KB 
#include "koala.h"
#include <bits/stdc++.h>
using namespace std;

string to_string(string s) { return s; }
template <typename T> string to_string(T v) {
  bool first = true;
  string res = "[";
  for (const auto &x : v) {
    if (!first)
      res += ", ";
    first = false;
    res += to_string(x);
  }
  res += "]";
  return res;
}

void dbg_out() { cout << endl; }
template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) {
  cout << ' ' << to_string(H);
  dbg_out(T...);
}

#ifdef DEBUG
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

vector<bool> simulate(int N, int W, vector<int> B, vector<int> P) {
  int i, j;

  int S = 0;

  int cache[2][205];
  int num[2][205];
  char taken[105][205];

  for (i = 0; i < 205; ++i) {
    cache[1][i] = 0;
    num[1][i] = 0;
  }

  for (i = 0; i < N; ++i) {
    int v = B[i] + 1;
    int ii = i & 1;
    int o = ii ^ 1;
    for (j = 0; j <= W; ++j) {
      cache[ii][j] = cache[o][j];
      num[ii][j] = num[o][j];
      taken[i][j] = 0;
    }
    for (j = W; j >= v; --j) {
      int h = cache[o][j - v] + P[i];
      int hn = num[o][j - v] + 1;
      if (h > cache[ii][j] || (h == cache[ii][j] && hn > num[ii][j])) {
        cache[ii][j] = h;
        num[ii][j] = hn;
        taken[i][j] = 1;
      } else {
        taken[i][j] = 0;
      }
    }
  }

  int cur = W;
  vector<bool> take(N);
  for (i = N - 1; i >= 0; --i) {
    take[i] = taken[i][cur];
    int R = taken[i][cur] ? (B[i] + 1) : 0;
    cur -= R;
  }
  return take;
}

int minValue(int N, int W) {
  vector<int> b(N);
  b[0] = 1;
  vector<int> r(N);
  playRound(b.data(), r.data());
  for (int i = 0; i < N; ++i)
    if (b[i] >= r[i])
      return i;
  assert(false);
}

int maxValue(int N, int W) {
  vector<int> candidats(N);
  iota(candidats.begin(), candidats.end(), 0);

  while (candidats.size() > 1) {
    int nbCandidats = candidats.size();
    vector<int> b(N);
    for (int u : candidats)
      b[u] = W / nbCandidats;
    vector<int> r(N);
    playRound(b.data(), r.data());
    ;
    vector<int> nxt;
    for (int u : candidats)
      if (b[u] < r[u])
        nxt.push_back(u);
    candidats = nxt;
  }
  assert(!candidats.empty());
  return candidats[0];
  return 0;
}

int greaterValue(int N, int W) {
  int lo = 1, up = 9;
  while (true) {
    int x = (lo + up) / 2;
    vector<int> b(N), r(N);
    b[0] = b[1] = x;
    playRound(b.data(), r.data());
    int take0 = b[0] < r[0];
    int take1 = b[1] < r[1];
    dbg(x, take0, take1);
    if (take0 and take1)
      lo = x + 1;
    else if (!take0 and !take1)
      up = x - 1;
    else if (take0)
      return 0;
    else
      return 1;
  }
}

void allValues(int N, int W, int *P) {
  if (W == 2 * N) {

    auto compare = [&](int i, int j) {
      vector<int> b(N);
      b[i] = b[j] = N;
      vector<int> r(N);
      playRound(b.data(), r.data());
      assert((b[i] < r[i]) xor (b[j] < r[j]));
      return b[i] >= r[i];
    };

    vector<int> order(N);
    iota(order.begin(), order.end(), 0);
    auto merge_sort = [&](auto rec, vector<int> toSort) {
      if (toSort.size() == 1)
        return toSort;
      vector<int> l, r;
      for (int i = 0; i < (int)toSort.size(); ++i)
        (i % 2 ? r : l).push_back(toSort[i]);
      l = rec(rec, l);
      r = rec(rec, r);
      merge(l.begin(), l.end(), r.begin(), r.end(), toSort.begin(), compare);
      return toSort;
    };

    order = merge_sort(merge_sort, order);
    for (int i = 0; i < N; ++i)
      P[order[i]] = i + 1;
  } else {
    auto Rec = [&](auto rec, int l, int r, vector<int> indices) {
      assert((int)indices.size() == r - l + 1);
      if (l == r) {
        P[indices[0]] = l;
        return;
      }
      vector<int> p(N);
      iota(p.begin(), p.end(), 1);
      for (int x = 1; x <= W / (r - l + 1); ++x) {
        vector<int> B(N);
        for (int i = l; i <= r; ++i)
          B[i - 1] = x;
        vector<bool> take = simulate(N, W, B, p);
        bool allTake = true, allNot = true;
        for (int i = l; i <= r; ++i)
          allTake &= take[i - 1], allNot &= !take[i - 1];
        if (!allTake and !allNot) {
          B.assign(N, 0);
          for (int i : indices)
            B[i] = x;
          vector<int> R(N);
          playRound(B.data(), R.data());
          vector<int> small, big;
          for (int i : indices) {
            if (R[i] > B[i])
              big.push_back(i);
            else
              small.push_back(i);
          }
          rec(rec, l, l + small.size() - 1, small);
          rec(rec, l + small.size(), r, big);
          return;
        }
      }
    };
    vector<int> indices(N);
    iota(indices.begin(), indices.end(), 0);
    Rec(Rec, 1, N, indices);
  }
}

Compilation message

koala.cpp: In function 'std::vector<bool> simulate(int, int, std::vector<int>, std::vector<int>)':
koala.cpp:34:7: warning: unused variable 'S' [-Wunused-variable]
   34 |   int S = 0;
      |       ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 3 ms 208 KB Output is correct
3 Correct 3 ms 312 KB Output is correct
4 Correct 3 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 208 KB Output is correct
2 Correct 10 ms 208 KB Output is correct
3 Correct 10 ms 208 KB Output is correct
4 Correct 10 ms 208 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 336 KB Output is correct
2 Correct 48 ms 324 KB Output is correct
3 Correct 40 ms 324 KB Output is correct
4 Correct 40 ms 324 KB Output is correct
5 Correct 40 ms 344 KB Output is correct
6 Correct 43 ms 324 KB Output is correct
7 Correct 40 ms 324 KB Output is correct
8 Correct 48 ms 344 KB Output is correct
9 Correct 46 ms 324 KB Output is correct
10 Correct 44 ms 336 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 208 KB Output is correct
2 Correct 25 ms 208 KB Output is correct
3 Correct 25 ms 316 KB Output is correct
4 Correct 24 ms 316 KB Output is correct
5 Correct 30 ms 208 KB Output is correct
6 Correct 25 ms 320 KB Output is correct
7 Correct 24 ms 208 KB Output is correct
8 Correct 24 ms 316 KB Output is correct
9 Correct 28 ms 208 KB Output is correct
10 Correct 28 ms 208 KB Output is correct
11 Correct 24 ms 208 KB Output is correct
12 Correct 28 ms 208 KB Output is correct
13 Correct 25 ms 208 KB Output is correct
14 Correct 26 ms 320 KB Output is correct
15 Correct 27 ms 208 KB Output is correct
16 Correct 33 ms 208 KB Output is correct
17 Correct 25 ms 300 KB Output is correct
18 Correct 25 ms 208 KB Output is correct
19 Correct 25 ms 208 KB Output is correct
20 Correct 24 ms 208 KB Output is correct

Subtask #5
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 336 KB Output is correct
2 Correct 11 ms 336 KB Output is correct
3 Correct 11 ms 324 KB Output is correct
4 Correct 13 ms 340 KB Output is correct
5 Correct 12 ms 332 KB Output is correct
6 Correct 11 ms 348 KB Output is correct
7 Correct 12 ms 336 KB Output is correct
8 Correct 14 ms 328 KB Output is correct
9 Correct 13 ms 344 KB Output is correct
10 Correct 11 ms 336 KB Output is correct
11 Correct 11 ms 332 KB Output is correct
12 Correct 11 ms 336 KB Output is correct
13 Correct 14 ms 340 KB Output is correct
14 Correct 11 ms 340 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 11 ms 344 KB Output is correct
17 Correct 11 ms 336 KB Output is correct
18 Correct 11 ms 336 KB Output is correct
19 Correct 11 ms 328 KB Output is correct
20 Correct 11 ms 336 KB Output is correct
21 Correct 14 ms 340 KB Output is correct
22 Correct 11 ms 336 KB Output is correct
23 Correct 11 ms 340 KB Output is correct
24 Correct 13 ms 344 KB Output is correct
25 Correct 11 ms 336 KB Output is correct
26 Correct 14 ms 336 KB Output is correct
27 Correct 11 ms 340 KB Output is correct
28 Correct 14 ms 568 KB Output is correct
29 Correct 11 ms 336 KB Output is correct
30 Correct 11 ms 328 KB Output is correct
31 Correct 11 ms 336 KB Output is correct
32 Correct 11 ms 340 KB Output is correct
33 Correct 11 ms 336 KB Output is correct
34 Correct 11 ms 328 KB Output is correct
35 Correct 11 ms 332 KB Output is correct
36 Correct 11 ms 336 KB Output is correct
37 Correct 11 ms 336 KB Output is correct
38 Correct 11 ms 336 KB Output is correct
39 Correct 15 ms 336 KB Output is correct
40 Correct 11 ms 336 KB Output is correct