oj.uz

Submission #969118

# Submission time Handle Problem Language Result Execution time Memory
969118 2024-04-24T14:15:56 Z kilkuwu Koala Game (APIO17_koala) C++17
100 / 100
 52 ms 708 KB 
#include "koala.h"
 
#include <bits/stdc++.h>
#ifdef LOCAL
#include "template/debug.hpp"
#else
#define dbg(...) ;
#define timer(...) ;
#endif
 
int minValue(int N, int W) {
  int B[N], R[N];
  for (int i = 0; i < N; i++) {
    B[i] = 0;
  }
  B[0] = 1;
  playRound(B, R);
 
  for (int i = 0; i < N; i++) {
    if (R[i] <= B[i]) {
      return i;
    }
  }
}
 
int maxValue(int N, int W) {
  int B[N], R[N];
  for (int i = 0; i < N; i++) {
    B[i] = 1;
  }
  playRound(B, R);
  int candidate[N];
  for (int i = 0; i < N; i++) {
    if (R[i] > B[i]) {
      candidate[i] = 1;
      B[i] = 2;
    } else {
      candidate[i] = 0;
      B[i] = 0;
    }
  }
  playRound(B, R);
  for (int i = 0; i < N; i++) {
    if (R[i] > B[i]) {
      if (candidate[i]) {
        B[i] = 4;
      } else {
        B[i] = 0;
      }
    } else {
      candidate[i] = 0;
      B[i] = 0;
    }
  }
  playRound(B, R);
  for (int i = 0; i < N; i++) {
    if (R[i] > B[i]) {
      if (candidate[i]) {
        B[i] = 11;
      } else {
        B[i] = 0;
      }
    } else {
      candidate[i] = 0;
      B[i] = 0;
    }
  }
  playRound(B, R);
 
  for (int i = 0; i < N; i++) {
    if (R[i] > B[i] && candidate[i]) return i;
  }
}
 
int greaterValue(int N, int W) {
  int B[N], R[N];

  for (int i = 0; i < N; i++) B[i] = 0;
  int mb = 5;
  B[0] = B[1] = mb;
  playRound(B, R);
  bool bought0 = R[0] > B[0];
  bool bought1 = R[1] > B[1];

  if (bought0 != bought1) return bought1;

  if (bought0) {
    mb = 8;
  } else {
    mb = 2;
  }

  B[0] = B[1] = mb;
  playRound(B, R);
  bought0 = R[0] > B[0];
  bought1 = R[1] > B[1];

  if (bought0 != bought1) return bought1;

  if (bought0) {
    mb = 3;
  } else {
    mb = 1;
  }

  B[0] = B[1] = mb;
  playRound(B, R);
  bought0 = R[0] > B[0];
  bought1 = R[1] > B[1];

  if (bought0 != bought1) return bought1;
  assert(false);
}

 
void allValues(int N, int W, int *P) {
  std::vector<int> ord(N);
  std::iota(ord.begin(), ord.end(), 0);
  if (W == 2 * N) {
    int B[N]{}, R[N];
    for (int i = 0; i < 100; i++) B[i] = 0;
    auto compare = [&](int i, int j) -> bool {
      B[i] = B[j] = W / 2;
      playRound(B, R);
      B[i] = B[j] = 0;
      return R[j] > B[j];
    };

    std::function<void(std::vector<int>&)> merge_sort = [&](std::vector<int>& v) -> void {
      if (v.size() == 1) return;
      int mid = v.size() / 2;
      std::vector<int> l(v.begin(), v.begin() + mid);
      std::vector<int> r(v.begin() + mid, v.end());
      merge_sort(l);
      merge_sort(r);
      std::merge(l.begin(), l.end(), r.begin(), r.end(), v.begin(), compare);
    };

    merge_sort(ord);

  } else {
    auto what_if_split = [&](int l, int r, int m) -> std::pair<int, int> {
      int B[N]{};
      int R[N];
      for (int i = l; i < r; i++) {
        B[i] = m;
      }
      std::vector<int> pp(N);
      for (int i = 0; i < N; i++) {
        pp[i] = i + 1;
      }
      int cache[2][205];
      int num[2][205];
      char taken[105][205];

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

      for (int i = 0; i < N; ++i) {
        int v = B[i] + 1;
        int ii = i & 1;
        int o = ii ^ 1;
        for (int j = 0; j <= W; ++j) {
          cache[ii][j] = cache[o][j];
          num[ii][j] = num[o][j];
          taken[i][j] = 0;
        }
        for (int j = W; j >= v; --j) {
          int h = cache[o][j - v] + pp[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;
      for (int i = N - 1; i >= 0; --i) {
        R[i] = taken[i][cur] ? (B[i] + 1) : 0;
        cur -= R[i];
      }

      int cnt_r = 0, cnt_l;
      for (int i = l; i < r; i++) {
        cnt_r += R[i] > B[i];
      }

      cnt_l = r - l - cnt_r;

      return {cnt_l, cnt_r};
    };

    std::function<void(std::vector<int>&, int, int)> merge = [&](std::vector<int>& v, int l, int r) -> void {
      dbg(v, l, r);
      if (r - l == 1) return;
      int ans = -1;
      int lb = 1, rb = W / (r - l);
      while (lb <= rb) {
        int mb = (lb + rb) / 2;
        auto [cl, cr] = what_if_split(l, r, mb);
        dbg(mb, cl, cr);
        if (cl && cr) {
          ans = mb;
          break;
        } else {
          if (cl) {
            rb = mb - 1;
          } else {
            lb = mb + 1;
          }
        }
      }

      assert(ans != -1);
      int B[N]{}, R[N];
      for (int i = l; i < r; i++) {
        B[v[i]] = ans;
      }

      playRound(B, R);

      int j = l;
      for (int i = l; i < r; i++) {
        if (R[v[i]] <= B[v[i]]) {
          std::swap(v[i], v[j]);
          j++;
        }
      }
      merge(v, l, j);
      merge(v, j, r);
    };

    merge(ord, 0, N);
  }
  for (int i = 0; i < N; i++) {
    P[ord[i]] = i + 1;
  }
}

Compilation message

koala.cpp: In function 'int minValue(int, int)':
koala.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type]
   24 | }
      | ^
koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:73:1: warning: control reaches end of non-void function [-Wreturn-type]
   73 | }
      | ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 10 ms 500 KB Output is correct
4 Correct 12 ms 344 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 464 KB Output is correct
2 Correct 52 ms 344 KB Output is correct
3 Correct 39 ms 480 KB Output is correct
4 Correct 41 ms 460 KB Output is correct
5 Correct 41 ms 488 KB Output is correct
6 Correct 40 ms 468 KB Output is correct
7 Correct 41 ms 464 KB Output is correct
8 Correct 49 ms 460 KB Output is correct
9 Correct 42 ms 480 KB Output is correct
10 Correct 43 ms 708 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 344 KB Output is correct
2 Correct 28 ms 448 KB Output is correct
3 Correct 26 ms 340 KB Output is correct
4 Correct 28 ms 344 KB Output is correct
5 Correct 29 ms 344 KB Output is correct
6 Correct 26 ms 344 KB Output is correct
7 Correct 24 ms 596 KB Output is correct
8 Correct 24 ms 452 KB Output is correct
9 Correct 24 ms 596 KB Output is correct
10 Correct 24 ms 344 KB Output is correct
11 Correct 27 ms 444 KB Output is correct
12 Correct 16 ms 448 KB Output is correct
13 Correct 34 ms 344 KB Output is correct
14 Correct 26 ms 344 KB Output is correct
15 Correct 22 ms 500 KB Output is correct
16 Correct 22 ms 344 KB Output is correct
17 Correct 22 ms 344 KB Output is correct
18 Correct 23 ms 448 KB Output is correct
19 Correct 25 ms 352 KB Output is correct
20 Correct 22 ms 344 KB Output is correct

Subtask #5
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 7 ms 460 KB Output is correct
3 Correct 7 ms 344 KB Output is correct
4 Correct 7 ms 344 KB Output is correct
5 Correct 7 ms 460 KB Output is correct
6 Correct 7 ms 464 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 7 ms 464 KB Output is correct
9 Correct 7 ms 344 KB Output is correct
10 Correct 7 ms 344 KB Output is correct
11 Correct 7 ms 344 KB Output is correct
12 Correct 7 ms 344 KB Output is correct
13 Correct 7 ms 344 KB Output is correct
14 Correct 7 ms 464 KB Output is correct
15 Correct 7 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 7 ms 464 KB Output is correct
18 Correct 7 ms 596 KB Output is correct
19 Correct 7 ms 344 KB Output is correct
20 Correct 7 ms 344 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 7 ms 460 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 7 ms 464 KB Output is correct
26 Correct 7 ms 344 KB Output is correct
27 Correct 7 ms 344 KB Output is correct
28 Correct 7 ms 344 KB Output is correct
29 Correct 7 ms 460 KB Output is correct
30 Correct 8 ms 464 KB Output is correct
31 Correct 7 ms 344 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 7 ms 344 KB Output is correct
34 Correct 9 ms 652 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 7 ms 460 KB Output is correct
37 Correct 7 ms 344 KB Output is correct
38 Correct 7 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 7 ms 344 KB Output is correct