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Submission #967682

# Submission time Handle Problem Language Result Execution time Memory
967682 2024-04-22T15:54:20 Z underwaterkillerwhale Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 74 ms 139384 KB 
#include <bits/stdc++.h>
#define se              second
#define fs              first
#define pb              push_back
#define ll              long long
#define ii              pair<ll,ll>
#define ld              long double
#define SZ(v)           (int)v.size()
#define ALL(v)          v.begin(), v.end()
#define bit(msk, i)     ((msk >> i) & 1)
#define iter(id, v)     for(auto id : v)
#define rep(i,m,n)      for(int i=(m); i<=(n); i++)
#define reb(i,m,n)      for(int i=(m); i>=(n); i--)

using namespace std;

mt19937_64 rd(chrono :: steady_clock :: now().time_since_epoch().count());
ll Rand(ll l, ll r) { return uniform_int_distribution<ll> (l, r)(rd); }

const int N = 2e2 + 7;
const ll Mod = 1e9 + 7;
const int szBL = 916;
const int INF = 2e9 + 7;
const int BASE = 137;

ll n, P;
ll a[N * 2], T[N * 2];
int dp[N * 2][N][N][2];

void minimize (int &a, ll b){ if (a > b) a = b;}

void solution () {
    cin >> n >> P;
    rep (i, 1, n) cin >> a[i];
    rep (i, 1, n) cin >> T[i];
    rep (i, n + 1, n * 2) a[i] = a[i - n], T[i] = T[i - n];
    memset(dp, 0x3f, sizeof dp);

    dp[n + 1][0][a[n + 1] <= T[n + 1]][1] = dp[n + 1][0][a[n + 1] <= T[n + 1]][0] = a[n + 1];
    dp[n][0][P - a[n] <= T[n]][1] = dp[n][0][P - a[n] <= T[n]][0] = P - a[n];

    reb (L, n + 1, 1) {
        rep (j, 1, n - 1) {
            int R = L + j;
            if (R < n) continue;
            rep (k, 0, n) {
                ll costRR = R == n + 1 ? P - a[R - 1] + a[R] : a[R] - a[R - 1];
                ll costLL = L == n ? a[L + 1] + P - a[L] : a[L + 1] - a[L];
                ll costLR = L == n + 1 ? a[R] - a[L] : P - a[L] + a[R];
                ll costRL = R == n ? a[R] - a[L] : P - a[L] + a[R];

                minimize (dp[L][j][k][1], costRR + dp[L][j - 1][k][1]);
                if (k > 0 && costRR + dp[L][j - 1][k - 1][1] <= T[R]) {
                    minimize (dp[L][j][k][1], costRR + dp[L][j - 1][k - 1][1]);
                }
                minimize(dp[L][j][k][1], costLR + dp[L][j - 1][k][0]);
                if (k > 0 && costLR + dp[L][j - 1][k - 1][0] <= T[R]) {
                    minimize (dp[L][j][k][1], costLR + dp[L][j - 1][k - 1][0]);
                }
                minimize(dp[L][j][k][0], costLL + dp[L + 1][j - 1][k][0]);
                if (k > 0 && costLL + dp[L + 1][j - 1][k - 1][0] <= T[L]) {
                    minimize (dp[L][j][k][0], costLL + dp[L + 1][j - 1][k - 1][0]);
                }
                minimize (dp[L][j][k][0], costRL + dp[L + 1][j - 1][k][1]);
                if (k > 0 && costRL + dp[L + 1][j - 1][k - 1][1] <= T[L]) {
                    minimize (dp[L][j][k][0], costRL + dp[L + 1][j - 1][k - 1][1]);
                }
//                rep (p, 0, 1)
//                    cout << L <<","<<j<<","<<k<<","<<p<<": "<<dp[L][j][k][p]<<" "<<dp[L][j - 1][k - 1][p] + costRR<<"\n";
            }
        }
    }
    int res = 0;
    rep (i, 1, n + 1)
    rep (j, 0, n - 1)
    rep (t, 0, n)
    rep (k, 0, 1) {
        if (dp[i][j][t][k] <= 1e9) res = max (res, t);
    }
    cout << res <<"\n";


}

#define file(name) freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout);

int main () {
//    file("c");
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    ll num_Test = 1;
//    cin >> num_Test;
    while(num_Test--)
        solution();
}
/*
5 20
4 5 8 13 17
18 23 15 7 10


*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 139092 KB Output is correct
2 Correct 19 ms 139096 KB Output is correct
3 Correct 18 ms 139260 KB Output is correct
4 Correct 18 ms 139100 KB Output is correct
5 Correct 19 ms 139152 KB Output is correct
6 Correct 18 ms 139092 KB Output is correct
7 Correct 21 ms 139124 KB Output is correct
8 Correct 20 ms 139356 KB Output is correct
9 Correct 21 ms 139088 KB Output is correct
10 Correct 19 ms 139100 KB Output is correct
11 Correct 18 ms 139100 KB Output is correct
12 Correct 18 ms 139100 KB Output is correct
13 Correct 20 ms 139224 KB Output is correct
14 Correct 18 ms 139096 KB Output is correct
15 Correct 18 ms 139100 KB Output is correct
16 Correct 19 ms 139100 KB Output is correct
17 Correct 18 ms 139096 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 139092 KB Output is correct
2 Correct 19 ms 139096 KB Output is correct
3 Correct 18 ms 139260 KB Output is correct
4 Correct 18 ms 139100 KB Output is correct
5 Correct 19 ms 139152 KB Output is correct
6 Correct 18 ms 139092 KB Output is correct
7 Correct 21 ms 139124 KB Output is correct
8 Correct 20 ms 139356 KB Output is correct
9 Correct 21 ms 139088 KB Output is correct
10 Correct 19 ms 139100 KB Output is correct
11 Correct 18 ms 139100 KB Output is correct
12 Correct 18 ms 139100 KB Output is correct
13 Correct 20 ms 139224 KB Output is correct
14 Correct 18 ms 139096 KB Output is correct
15 Correct 18 ms 139100 KB Output is correct
16 Correct 19 ms 139100 KB Output is correct
17 Correct 18 ms 139096 KB Output is correct
18 Correct 18 ms 139096 KB Output is correct
19 Correct 19 ms 139100 KB Output is correct
20 Correct 18 ms 139264 KB Output is correct
21 Correct 19 ms 139100 KB Output is correct
22 Correct 18 ms 139100 KB Output is correct
23 Correct 18 ms 139100 KB Output is correct
24 Correct 18 ms 139088 KB Output is correct
25 Correct 19 ms 139100 KB Output is correct
26 Correct 19 ms 139368 KB Output is correct
27 Correct 18 ms 139100 KB Output is correct
28 Correct 18 ms 139296 KB Output is correct
29 Correct 19 ms 139112 KB Output is correct
30 Correct 18 ms 139352 KB Output is correct
31 Correct 18 ms 139096 KB Output is correct
32 Correct 19 ms 139096 KB Output is correct
33 Correct 19 ms 139100 KB Output is correct
34 Correct 19 ms 139156 KB Output is correct
35 Correct 18 ms 139096 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 139092 KB Output is correct
2 Correct 19 ms 139096 KB Output is correct
3 Correct 18 ms 139260 KB Output is correct
4 Correct 18 ms 139100 KB Output is correct
5 Correct 19 ms 139152 KB Output is correct
6 Correct 18 ms 139092 KB Output is correct
7 Correct 21 ms 139124 KB Output is correct
8 Correct 20 ms 139356 KB Output is correct
9 Correct 21 ms 139088 KB Output is correct
10 Correct 19 ms 139100 KB Output is correct
11 Correct 18 ms 139100 KB Output is correct
12 Correct 18 ms 139100 KB Output is correct
13 Correct 20 ms 139224 KB Output is correct
14 Correct 18 ms 139096 KB Output is correct
15 Correct 18 ms 139100 KB Output is correct
16 Correct 19 ms 139100 KB Output is correct
17 Correct 18 ms 139096 KB Output is correct
18 Correct 41 ms 139100 KB Output is correct
19 Correct 29 ms 139320 KB Output is correct
20 Correct 27 ms 139384 KB Output is correct
21 Correct 31 ms 139096 KB Output is correct
22 Correct 33 ms 139188 KB Output is correct
23 Correct 23 ms 139100 KB Output is correct
24 Correct 22 ms 139108 KB Output is correct
25 Correct 23 ms 139352 KB Output is correct
26 Correct 19 ms 139100 KB Output is correct
27 Correct 24 ms 139100 KB Output is correct
28 Correct 22 ms 139100 KB Output is correct
29 Correct 23 ms 139100 KB Output is correct
30 Correct 22 ms 139100 KB Output is correct
31 Correct 25 ms 139096 KB Output is correct
32 Correct 20 ms 139100 KB Output is correct
33 Correct 23 ms 139100 KB Output is correct
34 Correct 20 ms 139092 KB Output is correct
35 Correct 22 ms 139100 KB Output is correct
36 Correct 19 ms 139096 KB Output is correct
37 Correct 24 ms 139104 KB Output is correct
38 Correct 20 ms 139100 KB Output is correct
39 Correct 24 ms 139100 KB Output is correct
40 Correct 21 ms 139100 KB Output is correct
41 Correct 46 ms 139100 KB Output is correct
42 Correct 32 ms 139100 KB Output is correct
43 Correct 46 ms 139304 KB Output is correct
44 Correct 33 ms 139100 KB Output is correct
45 Correct 50 ms 139272 KB Output is correct
46 Correct 33 ms 139100 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 139092 KB Output is correct
2 Correct 19 ms 139096 KB Output is correct
3 Correct 18 ms 139260 KB Output is correct
4 Correct 18 ms 139100 KB Output is correct
5 Correct 19 ms 139152 KB Output is correct
6 Correct 18 ms 139092 KB Output is correct
7 Correct 21 ms 139124 KB Output is correct
8 Correct 20 ms 139356 KB Output is correct
9 Correct 21 ms 139088 KB Output is correct
10 Correct 19 ms 139100 KB Output is correct
11 Correct 18 ms 139100 KB Output is correct
12 Correct 18 ms 139100 KB Output is correct
13 Correct 20 ms 139224 KB Output is correct
14 Correct 18 ms 139096 KB Output is correct
15 Correct 18 ms 139100 KB Output is correct
16 Correct 19 ms 139100 KB Output is correct
17 Correct 18 ms 139096 KB Output is correct
18 Correct 18 ms 139096 KB Output is correct
19 Correct 19 ms 139100 KB Output is correct
20 Correct 18 ms 139264 KB Output is correct
21 Correct 19 ms 139100 KB Output is correct
22 Correct 18 ms 139100 KB Output is correct
23 Correct 18 ms 139100 KB Output is correct
24 Correct 18 ms 139088 KB Output is correct
25 Correct 19 ms 139100 KB Output is correct
26 Correct 19 ms 139368 KB Output is correct
27 Correct 18 ms 139100 KB Output is correct
28 Correct 18 ms 139296 KB Output is correct
29 Correct 19 ms 139112 KB Output is correct
30 Correct 18 ms 139352 KB Output is correct
31 Correct 18 ms 139096 KB Output is correct
32 Correct 19 ms 139096 KB Output is correct
33 Correct 19 ms 139100 KB Output is correct
34 Correct 19 ms 139156 KB Output is correct
35 Correct 18 ms 139096 KB Output is correct
36 Correct 41 ms 139100 KB Output is correct
37 Correct 29 ms 139320 KB Output is correct
38 Correct 27 ms 139384 KB Output is correct
39 Correct 31 ms 139096 KB Output is correct
40 Correct 33 ms 139188 KB Output is correct
41 Correct 23 ms 139100 KB Output is correct
42 Correct 22 ms 139108 KB Output is correct
43 Correct 23 ms 139352 KB Output is correct
44 Correct 19 ms 139100 KB Output is correct
45 Correct 24 ms 139100 KB Output is correct
46 Correct 22 ms 139100 KB Output is correct
47 Correct 23 ms 139100 KB Output is correct
48 Correct 22 ms 139100 KB Output is correct
49 Correct 25 ms 139096 KB Output is correct
50 Correct 20 ms 139100 KB Output is correct
51 Correct 23 ms 139100 KB Output is correct
52 Correct 20 ms 139092 KB Output is correct
53 Correct 22 ms 139100 KB Output is correct
54 Correct 19 ms 139096 KB Output is correct
55 Correct 24 ms 139104 KB Output is correct
56 Correct 20 ms 139100 KB Output is correct
57 Correct 24 ms 139100 KB Output is correct
58 Correct 21 ms 139100 KB Output is correct
59 Correct 46 ms 139100 KB Output is correct
60 Correct 32 ms 139100 KB Output is correct
61 Correct 46 ms 139304 KB Output is correct
62 Correct 33 ms 139100 KB Output is correct
63 Correct 50 ms 139272 KB Output is correct
64 Correct 33 ms 139100 KB Output is correct
65 Correct 41 ms 139100 KB Output is correct
66 Correct 39 ms 139100 KB Output is correct
67 Correct 37 ms 139144 KB Output is correct
68 Correct 37 ms 139100 KB Output is correct
69 Correct 41 ms 139100 KB Output is correct
70 Correct 42 ms 139088 KB Output is correct
71 Correct 42 ms 139100 KB Output is correct
72 Correct 41 ms 139100 KB Output is correct
73 Correct 37 ms 139096 KB Output is correct
74 Correct 38 ms 139100 KB Output is correct
75 Correct 40 ms 139316 KB Output is correct
76 Correct 44 ms 139272 KB Output is correct
77 Correct 42 ms 139100 KB Output is correct
78 Correct 36 ms 139088 KB Output is correct
79 Correct 36 ms 139096 KB Output is correct
80 Correct 43 ms 139100 KB Output is correct
81 Correct 36 ms 139108 KB Output is correct
82 Correct 40 ms 139100 KB Output is correct
83 Correct 43 ms 139308 KB Output is correct
84 Correct 40 ms 139100 KB Output is correct
85 Correct 41 ms 139100 KB Output is correct
86 Correct 47 ms 139216 KB Output is correct
87 Correct 43 ms 139092 KB Output is correct
88 Correct 46 ms 139096 KB Output is correct
89 Correct 45 ms 139100 KB Output is correct
90 Correct 38 ms 139100 KB Output is correct
91 Correct 46 ms 139100 KB Output is correct
92 Correct 50 ms 139332 KB Output is correct
93 Correct 43 ms 139096 KB Output is correct