oj.uz

답안 #202884

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
202884 2020-02-18T15:32:35 Z EntityIT Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 137 ms 65532 KB 
#include<bits/stdc++.h>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define sz(x) ( (int)(x).size() )
using LL = long long;

template<class T>
inline bool asMn(T &a, const T &b) { return a > b ? a = b, true : false; }
template<class T>
inline bool asMx(T &a, const T &b) { return a < b ? a = b, true : false; }

inline int nxt(int i, int n) { return i == n - 1 ? 0 : i + 1; }
inline int prv(int i, int n) { return !i ? n - 1 : i - 1; }

const int inf = 1e9 + 100;
mt19937 rng( (uint32_t)chrono::steady_clock::now().time_since_epoch().count() );

int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);

  #ifdef FourLeafClover
  freopen("input", "r", stdin);
  #endif // FourLeafCLover

  int n, l; cin >> n >> l;
  vector<int> x(n), t(n);
  for (auto &i : x) cin >> i;
  for (auto &i : t) cin >> i;

  vector<vector<vector<array<int, 2> > > > f(n + 1, vector<vector<array<int, 2> > >(n + 1, vector<array<int, 2> >(n + 1, array<int, 2>{ inf, inf } ) ) );
  f[0][n][n][0] = 0;

  for (int nStamp = 0; nStamp < n; ++nStamp) {
    for (int i = n; ~i; --i) {
      for (int j = n, cnt = 0; (j == n && !cnt) || j < i; j = nxt(j, n + 1), cnt += (j == n) ) {
        for (int side = 0; side < 2; ++side) if (f[nStamp][i][j][side] < inf) {
          int prvI = prv(i, n + 1), nxtJ = nxt(j, n + 1);
          if (!side) {
            if (prvI != j) asMn(f[nStamp + (f[nStamp][i][j][side] + (i == n ? l : x[i]) - x[prvI] <= t[prvI])][prvI][j][0],
                                f[nStamp][i][j][side] + (i == n ? l : x[i]) - x[prvI]);
            if (nxtJ != i) asMn(f[nStamp + (f[nStamp][i][j][side] + (i == n ? 0 : l - x[i]) + x[nxtJ] <= t[nxtJ])][i][nxtJ][1],
                                f[nStamp][i][j][side] + (i == n ? 0 : l - x[i]) + x[nxtJ]);
          }
          else {
            if (prvI != j) asMn(f[nStamp + (f[nStamp][i][j][side] + (j == n ? 0 : x[j]) + l - x[prvI] <= t[prvI])][prvI][j][0],
                                f[nStamp][i][j][side] + (j == n ? 0 : x[j]) + l - x[prvI]);
            if (nxtJ != i) asMn(f[nStamp + (f[nStamp][i][j][side] + x[nxtJ] - (j == n ? 0 : x[j]) <= t[nxtJ])][i][nxtJ][1],
                                f[nStamp][i][j][side] + x[nxtJ] - (j == n ? 0 : x[j]));
          }
        }
      }
    }
  }

  int ans = 0;
  for (int nStamp = 1; nStamp <= n; ++nStamp) {
    for (int i = n; ~i; --i) {
      for (int j = n, cnt = 0; (j == n && !cnt) || j < i; j = nxt(j, n + 1), cnt += (j == n) ) {
        for (int side = 0; side < 2; ++side) if (f[nStamp][i][j][side] < inf) ans = nStamp;
      }
    }
  }

  cout << ans << '\n';

  return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 248 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 372 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 248 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 248 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 372 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 248 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 380 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 380 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 248 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 372 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 248 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 93 ms 47480 KB Output is correct
19 Correct 48 ms 22792 KB Output is correct
20 Correct 21 ms 9080 KB Output is correct
21 Correct 42 ms 20860 KB Output is correct
22 Correct 61 ms 30456 KB Output is correct
23 Correct 22 ms 7288 KB Output is correct
24 Correct 12 ms 5112 KB Output is correct
25 Correct 20 ms 6904 KB Output is correct
26 Correct 7 ms 1912 KB Output is correct
27 Correct 21 ms 7416 KB Output is correct
28 Correct 12 ms 4600 KB Output is correct
29 Correct 20 ms 7672 KB Output is correct
30 Correct 12 ms 5368 KB Output is correct
31 Correct 18 ms 6904 KB Output is correct
32 Correct 9 ms 2808 KB Output is correct
33 Correct 18 ms 6904 KB Output is correct
34 Correct 7 ms 1784 KB Output is correct
35 Correct 15 ms 6776 KB Output is correct
36 Correct 8 ms 2424 KB Output is correct
37 Correct 20 ms 7416 KB Output is correct
38 Correct 10 ms 3192 KB Output is correct
39 Correct 16 ms 7928 KB Output is correct
40 Correct 10 ms 3704 KB Output is correct
41 Correct 130 ms 65016 KB Output is correct
42 Correct 55 ms 36220 KB Output is correct
43 Correct 132 ms 65016 KB Output is correct
44 Correct 46 ms 35320 KB Output is correct
45 Correct 137 ms 64888 KB Output is correct
46 Correct 45 ms 36216 KB Output is correct

Subtask #4
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 248 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 372 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 248 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 380 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 380 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 93 ms 47480 KB Output is correct
37 Correct 48 ms 22792 KB Output is correct
38 Correct 21 ms 9080 KB Output is correct
39 Correct 42 ms 20860 KB Output is correct
40 Correct 61 ms 30456 KB Output is correct
41 Correct 22 ms 7288 KB Output is correct
42 Correct 12 ms 5112 KB Output is correct
43 Correct 20 ms 6904 KB Output is correct
44 Correct 7 ms 1912 KB Output is correct
45 Correct 21 ms 7416 KB Output is correct
46 Correct 12 ms 4600 KB Output is correct
47 Correct 20 ms 7672 KB Output is correct
48 Correct 12 ms 5368 KB Output is correct
49 Correct 18 ms 6904 KB Output is correct
50 Correct 9 ms 2808 KB Output is correct
51 Correct 18 ms 6904 KB Output is correct
52 Correct 7 ms 1784 KB Output is correct
53 Correct 15 ms 6776 KB Output is correct
54 Correct 8 ms 2424 KB Output is correct
55 Correct 20 ms 7416 KB Output is correct
56 Correct 10 ms 3192 KB Output is correct
57 Correct 16 ms 7928 KB Output is correct
58 Correct 10 ms 3704 KB Output is correct
59 Correct 130 ms 65016 KB Output is correct
60 Correct 55 ms 36220 KB Output is correct
61 Correct 132 ms 65016 KB Output is correct
62 Correct 46 ms 35320 KB Output is correct
63 Correct 137 ms 64888 KB Output is correct
64 Correct 45 ms 36216 KB Output is correct
65 Correct 70 ms 55672 KB Output is correct
66 Correct 64 ms 49144 KB Output is correct
67 Correct 61 ms 45944 KB Output is correct
68 Correct 67 ms 40568 KB Output is correct
69 Correct 69 ms 54520 KB Output is correct
70 Correct 68 ms 51192 KB Output is correct
71 Correct 63 ms 52344 KB Output is correct
72 Correct 72 ms 52956 KB Output is correct
73 Correct 56 ms 47484 KB Output is correct
74 Correct 56 ms 43000 KB Output is correct
75 Correct 59 ms 49656 KB Output is correct
76 Correct 93 ms 61048 KB Output is correct
77 Correct 74 ms 61048 KB Output is correct
78 Correct 66 ms 41592 KB Output is correct
79 Correct 55 ms 43512 KB Output is correct
80 Correct 96 ms 59256 KB Output is correct
81 Correct 56 ms 44408 KB Output is correct
82 Correct 74 ms 48248 KB Output is correct
83 Correct 77 ms 64888 KB Output is correct
84 Correct 74 ms 51192 KB Output is correct
85 Correct 68 ms 58104 KB Output is correct
86 Correct 80 ms 56312 KB Output is correct
87 Correct 67 ms 49656 KB Output is correct
88 Correct 83 ms 65528 KB Output is correct
89 Correct 79 ms 65528 KB Output is correct
90 Correct 63 ms 50680 KB Output is correct
91 Correct 85 ms 65528 KB Output is correct
92 Correct 79 ms 65532 KB Output is correct
93 Correct 76 ms 63608 KB Output is correct