oj.uz

답안 #697623

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
697623 2023-02-10T15:20:48 Z peijar Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1419 ms 460 KB 
#include <bits/stdc++.h>
#define int long long
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

using F = long double;

const int MAXN = 501;
const F INF = 1e18;

F dp[2][MAXN];

signed main(void) {
  ios_base::sync_with_stdio(false);
  cin.tie(0);

  int nbEtats, nbVoulus;
  cin >> nbEtats >> nbVoulus;

  vector<pair<int, int>> etats(nbEtats);
  int cnt = 0;
  for (auto &[b, a] : etats) {
    cin >> a >> b;
    if (b == -1)
      b = INF;
    else
      cnt++;
  }
  sort(etats.begin(), etats.end());

  F sol = INF;

  for (int c = 0; c <= cnt and c <= nbVoulus; ++c) {
    for (int i = 0; i < 2; ++i)
      for (int j = 0; j < MAXN; ++j)
        dp[i][j] = INF;

    dp[0][0] = 0;
    F s = INF;
    for (int nbVus = 0; nbVus <= nbEtats; ++nbVus) {
      int cur = nbVus % 2;
      int nxt = cur ^ 1;
      for (int i = 0; i < MAXN; ++i)
        dp[nxt][i] = INF;
      for (int prisA = 0; prisA <= nbVus and prisA <= nbVoulus - c; ++prisA) {
        int prisB = nbVus - prisA;
        if (prisB > c)
          continue;
        F v = dp[cur][prisA];
        if (prisB == c) {
          vector<int> restants;
          for (int i = nbVus; i < nbEtats; ++i)
            restants.push_back(etats[i].second);
          sort(restants.begin(), restants.end());
          for (int i = 0; i < nbVoulus - nbVus; ++i)
            v += restants[i] / (F)(c + 1);
          s = min(s, v);
        } else if (nbVus < nbEtats) {
          auto [b, a] = etats[nbVus];
          // on prend en A
          dp[nxt][prisA + 1] = min(dp[nxt][prisA + 1], v + a / (F)(c + 1));
          // on prend en b
          dp[nxt][prisA] = min(dp[nxt][prisA], v + b / (F)(prisB + 1));
        }
      }
    }
    dbg(c, s);
    sol = min(sol, s);
  }

  cout << setprecision(9) << fixed << sol << endl;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 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 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 3 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 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 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 3 ms 348 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 142 ms 340 KB Output is correct
13 Correct 183 ms 340 KB Output is correct
14 Correct 141 ms 340 KB Output is correct
15 Correct 527 ms 340 KB Output is correct
16 Correct 606 ms 340 KB Output is correct
17 Correct 254 ms 344 KB Output is correct
18 Correct 929 ms 340 KB Output is correct
19 Correct 864 ms 340 KB Output is correct
20 Correct 294 ms 340 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 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 0 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 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 0 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 324 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 324 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 324 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 320 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 316 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 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 0 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 324 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 324 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 324 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 320 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 316 KB Output is correct
41 Correct 3 ms 212 KB Output is correct
42 Correct 2 ms 340 KB Output is correct
43 Correct 4 ms 320 KB Output is correct
44 Correct 4 ms 320 KB Output is correct
45 Correct 8 ms 324 KB Output is correct
46 Correct 8 ms 212 KB Output is correct
47 Correct 10 ms 340 KB Output is correct
48 Correct 10 ms 340 KB Output is correct
49 Correct 13 ms 344 KB Output is correct
50 Correct 14 ms 340 KB Output is correct
51 Correct 18 ms 324 KB Output is correct
52 Correct 17 ms 340 KB Output is correct
53 Correct 10 ms 212 KB Output is correct
54 Correct 11 ms 320 KB Output is correct
55 Correct 10 ms 332 KB Output is correct
56 Correct 10 ms 212 KB Output is correct
57 Correct 10 ms 340 KB Output is correct
58 Correct 11 ms 340 KB Output is correct
59 Correct 10 ms 344 KB Output is correct
60 Correct 9 ms 212 KB Output is correct

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1399 ms 340 KB Output is correct
2 Correct 1400 ms 340 KB Output is correct
3 Correct 1402 ms 340 KB Output is correct
4 Correct 1399 ms 340 KB Output is correct
5 Correct 1409 ms 340 KB Output is correct
6 Correct 1419 ms 324 KB Output is correct
7 Correct 1274 ms 340 KB Output is correct

Subtask #7
23.0 / 23.0

# 결과 실행 시간 메모리 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 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 4 ms 340 KB Output is correct
10 Correct 3 ms 348 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 142 ms 340 KB Output is correct
13 Correct 183 ms 340 KB Output is correct
14 Correct 141 ms 340 KB Output is correct
15 Correct 527 ms 340 KB Output is correct
16 Correct 606 ms 340 KB Output is correct
17 Correct 254 ms 344 KB Output is correct
18 Correct 929 ms 340 KB Output is correct
19 Correct 864 ms 340 KB Output is correct
20 Correct 294 ms 340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 324 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 324 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 320 KB Output is correct
47 Correct 1 ms 324 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 328 KB Output is correct
50 Correct 1 ms 324 KB Output is correct
51 Correct 1 ms 324 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 320 KB Output is correct
57 Correct 1 ms 320 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 316 KB Output is correct
61 Correct 3 ms 212 KB Output is correct
62 Correct 2 ms 340 KB Output is correct
63 Correct 4 ms 320 KB Output is correct
64 Correct 4 ms 320 KB Output is correct
65 Correct 8 ms 324 KB Output is correct
66 Correct 8 ms 212 KB Output is correct
67 Correct 10 ms 340 KB Output is correct
68 Correct 10 ms 340 KB Output is correct
69 Correct 13 ms 344 KB Output is correct
70 Correct 14 ms 340 KB Output is correct
71 Correct 18 ms 324 KB Output is correct
72 Correct 17 ms 340 KB Output is correct
73 Correct 10 ms 212 KB Output is correct
74 Correct 11 ms 320 KB Output is correct
75 Correct 10 ms 332 KB Output is correct
76 Correct 10 ms 212 KB Output is correct
77 Correct 10 ms 340 KB Output is correct
78 Correct 11 ms 340 KB Output is correct
79 Correct 10 ms 344 KB Output is correct
80 Correct 9 ms 212 KB Output is correct
81 Correct 1399 ms 340 KB Output is correct
82 Correct 1400 ms 340 KB Output is correct
83 Correct 1402 ms 340 KB Output is correct
84 Correct 1399 ms 340 KB Output is correct
85 Correct 1409 ms 340 KB Output is correct
86 Correct 1419 ms 324 KB Output is correct
87 Correct 1274 ms 340 KB Output is correct
88 Correct 45 ms 340 KB Output is correct
89 Correct 46 ms 344 KB Output is correct
90 Correct 190 ms 340 KB Output is correct
91 Correct 187 ms 340 KB Output is correct
92 Correct 562 ms 340 KB Output is correct
93 Correct 580 ms 344 KB Output is correct
94 Correct 1002 ms 340 KB Output is correct
95 Correct 1014 ms 340 KB Output is correct
96 Correct 1234 ms 340 KB Output is correct
97 Correct 1264 ms 340 KB Output is correct
98 Correct 880 ms 340 KB Output is correct
99 Correct 887 ms 344 KB Output is correct
100 Correct 881 ms 352 KB Output is correct
101 Correct 909 ms 460 KB Output is correct
102 Correct 843 ms 340 KB Output is correct
103 Correct 822 ms 332 KB Output is correct
104 Correct 792 ms 340 KB Output is correct
105 Correct 490 ms 340 KB Output is correct