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Submission #680915

# Submission time Handle Problem Language Result Execution time Memory
680915 2023-01-12T03:13:42 Z uylulu Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 249 ms 66892 KB 
#include <bits/stdc++.h>
using namespace std;

#define double long double
// #define int long long
#define endl "\n"

const int N = 200 + 3,oo = 1e9 + 5;

int dp[N + 1][N + 1][N + 1][2];

int x[N + 1],t[N + 1];

int n,len;

int f(int l,int r,int cnt,int side) {
    if(l == n + 1 && r == 0) {
        if(cnt != 0) {
            return oo;
        }
        return 0;
    }

    // cout<<cnt<<endl;

    if(dp[l][r][cnt][side] != -1) return dp[l][r][cnt][side];

    int res = oo;

    // cout<<l<<" "<<r<<" "<<cnt<<endl;

    if(side == 1) {
        if(r > 0) {
            res = min(res,f(l,r - 1,cnt,1) + (x[r] - x[r - 1]));
            res = min(res,f(l,r - 1,cnt,0) + (len - x[l]) + x[r]);
        }
    
        if(r > 0 && cnt > 0) {
            int tl = f(l,r - 1,cnt - 1,1);

            if(t[r] >= tl + (x[r] - x[r - 1])) {
                res = min(res,tl + x[r] - x[r - 1]);
            }

            tl = f(l,r - 1,cnt - 1,0);

            if(t[r] >= tl + (len - x[l]) + x[r]) {
                res = min(res,tl + (len - x[l]) + x[r]);
            }
        }
        return dp[l][r][cnt][side] = res;
    } else {
        if(l <= n) {
            res = min(res,f(l + 1,r,cnt,0) + abs(x[l] - x[l + 1]));
            res = min(res,f(l + 1,r,cnt,1) + (len - x[l]) + x[r]);
        }
        if(l <= n && cnt > 0) {
            int tl = f(l + 1,r,cnt - 1,0);

            if(t[l] >= tl + abs(x[l] - x[l + 1])) {
                res = min(res,tl + abs(x[l] - x[l + 1]));
            }
            tl = f(l + 1,r,cnt - 1,1);

            if(t[l] >= tl + (len - x[l]) + x[r]) {
                res = min(res,tl + (len - x[l]) + x[r]);
            }
        }
        return dp[l][r][cnt][side] = res;
    }
    return dp[l][r][cnt][side] = oo;
}

signed main() {
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);

    memset(dp,-1,sizeof(dp));

    cin>>n>>len;

    for(int i = 1;i <= n;i++) {
        cin>>x[i];
    }
    for(int i = 1;i <= n;i++) {
        cin>>t[i];
    }
    int res = 0;

    if(x[n] == len) {
        res++;
        n--;
    }
    x[0] = 0;
    x[n + 1] = len;

    int sum = 0;

    // cout<<f(0,4,7,1)<<endl;

    for(int i = 0;i <= n;i++) {
        for(int j = i + 1;j <= n + 1;j++) {
            for(int k = 0;k <= n;k++) {
                int asd = min(f(j,i,k,0),f(j,i,k,1));

                if(asd < oo) {
                    sum = max(sum,k);
                    // cout<<j<<" "<<i<<" "<<k<<endl;
                }

            }
        }
    }
    cout<<res + sum<<endl;

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 66772 KB Output is correct
2 Correct 26 ms 66664 KB Output is correct
3 Correct 26 ms 66764 KB Output is correct
4 Correct 26 ms 66656 KB Output is correct
5 Correct 27 ms 66688 KB Output is correct
6 Correct 29 ms 66772 KB Output is correct
7 Correct 27 ms 66744 KB Output is correct
8 Correct 27 ms 66772 KB Output is correct
9 Correct 29 ms 66636 KB Output is correct
10 Correct 27 ms 66772 KB Output is correct
11 Correct 27 ms 66648 KB Output is correct
12 Correct 27 ms 66732 KB Output is correct
13 Correct 27 ms 66772 KB Output is correct
14 Correct 26 ms 66636 KB Output is correct
15 Correct 31 ms 66772 KB Output is correct
16 Correct 26 ms 66704 KB Output is correct
17 Correct 26 ms 66668 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 66772 KB Output is correct
2 Correct 26 ms 66664 KB Output is correct
3 Correct 26 ms 66764 KB Output is correct
4 Correct 26 ms 66656 KB Output is correct
5 Correct 27 ms 66688 KB Output is correct
6 Correct 29 ms 66772 KB Output is correct
7 Correct 27 ms 66744 KB Output is correct
8 Correct 27 ms 66772 KB Output is correct
9 Correct 29 ms 66636 KB Output is correct
10 Correct 27 ms 66772 KB Output is correct
11 Correct 27 ms 66648 KB Output is correct
12 Correct 27 ms 66732 KB Output is correct
13 Correct 27 ms 66772 KB Output is correct
14 Correct 26 ms 66636 KB Output is correct
15 Correct 31 ms 66772 KB Output is correct
16 Correct 26 ms 66704 KB Output is correct
17 Correct 26 ms 66668 KB Output is correct
18 Correct 26 ms 66772 KB Output is correct
19 Correct 27 ms 66720 KB Output is correct
20 Correct 26 ms 66760 KB Output is correct
21 Correct 27 ms 66772 KB Output is correct
22 Correct 29 ms 66676 KB Output is correct
23 Correct 27 ms 66760 KB Output is correct
24 Correct 27 ms 66724 KB Output is correct
25 Correct 27 ms 66744 KB Output is correct
26 Correct 27 ms 66756 KB Output is correct
27 Correct 26 ms 66772 KB Output is correct
28 Correct 26 ms 66688 KB Output is correct
29 Correct 26 ms 66752 KB Output is correct
30 Correct 26 ms 66728 KB Output is correct
31 Correct 26 ms 66772 KB Output is correct
32 Correct 27 ms 66772 KB Output is correct
33 Correct 26 ms 66748 KB Output is correct
34 Correct 26 ms 66640 KB Output is correct
35 Correct 26 ms 66652 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 66772 KB Output is correct
2 Correct 26 ms 66664 KB Output is correct
3 Correct 26 ms 66764 KB Output is correct
4 Correct 26 ms 66656 KB Output is correct
5 Correct 27 ms 66688 KB Output is correct
6 Correct 29 ms 66772 KB Output is correct
7 Correct 27 ms 66744 KB Output is correct
8 Correct 27 ms 66772 KB Output is correct
9 Correct 29 ms 66636 KB Output is correct
10 Correct 27 ms 66772 KB Output is correct
11 Correct 27 ms 66648 KB Output is correct
12 Correct 27 ms 66732 KB Output is correct
13 Correct 27 ms 66772 KB Output is correct
14 Correct 26 ms 66636 KB Output is correct
15 Correct 31 ms 66772 KB Output is correct
16 Correct 26 ms 66704 KB Output is correct
17 Correct 26 ms 66668 KB Output is correct
18 Correct 185 ms 66816 KB Output is correct
19 Correct 100 ms 66772 KB Output is correct
20 Correct 55 ms 66660 KB Output is correct
21 Correct 91 ms 66764 KB Output is correct
22 Correct 122 ms 66772 KB Output is correct
23 Correct 47 ms 66772 KB Output is correct
24 Correct 42 ms 66708 KB Output is correct
25 Correct 48 ms 66772 KB Output is correct
26 Correct 32 ms 66636 KB Output is correct
27 Correct 49 ms 66780 KB Output is correct
28 Correct 40 ms 66772 KB Output is correct
29 Correct 50 ms 66772 KB Output is correct
30 Correct 42 ms 66772 KB Output is correct
31 Correct 50 ms 66716 KB Output is correct
32 Correct 35 ms 66772 KB Output is correct
33 Correct 52 ms 66740 KB Output is correct
34 Correct 31 ms 66740 KB Output is correct
35 Correct 47 ms 66772 KB Output is correct
36 Correct 34 ms 66728 KB Output is correct
37 Correct 52 ms 66760 KB Output is correct
38 Correct 36 ms 66756 KB Output is correct
39 Correct 50 ms 66764 KB Output is correct
40 Correct 37 ms 66764 KB Output is correct
41 Correct 234 ms 66768 KB Output is correct
42 Correct 143 ms 66768 KB Output is correct
43 Correct 231 ms 66736 KB Output is correct
44 Correct 138 ms 66892 KB Output is correct
45 Correct 234 ms 66776 KB Output is correct
46 Correct 136 ms 66772 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 66772 KB Output is correct
2 Correct 26 ms 66664 KB Output is correct
3 Correct 26 ms 66764 KB Output is correct
4 Correct 26 ms 66656 KB Output is correct
5 Correct 27 ms 66688 KB Output is correct
6 Correct 29 ms 66772 KB Output is correct
7 Correct 27 ms 66744 KB Output is correct
8 Correct 27 ms 66772 KB Output is correct
9 Correct 29 ms 66636 KB Output is correct
10 Correct 27 ms 66772 KB Output is correct
11 Correct 27 ms 66648 KB Output is correct
12 Correct 27 ms 66732 KB Output is correct
13 Correct 27 ms 66772 KB Output is correct
14 Correct 26 ms 66636 KB Output is correct
15 Correct 31 ms 66772 KB Output is correct
16 Correct 26 ms 66704 KB Output is correct
17 Correct 26 ms 66668 KB Output is correct
18 Correct 26 ms 66772 KB Output is correct
19 Correct 27 ms 66720 KB Output is correct
20 Correct 26 ms 66760 KB Output is correct
21 Correct 27 ms 66772 KB Output is correct
22 Correct 29 ms 66676 KB Output is correct
23 Correct 27 ms 66760 KB Output is correct
24 Correct 27 ms 66724 KB Output is correct
25 Correct 27 ms 66744 KB Output is correct
26 Correct 27 ms 66756 KB Output is correct
27 Correct 26 ms 66772 KB Output is correct
28 Correct 26 ms 66688 KB Output is correct
29 Correct 26 ms 66752 KB Output is correct
30 Correct 26 ms 66728 KB Output is correct
31 Correct 26 ms 66772 KB Output is correct
32 Correct 27 ms 66772 KB Output is correct
33 Correct 26 ms 66748 KB Output is correct
34 Correct 26 ms 66640 KB Output is correct
35 Correct 26 ms 66652 KB Output is correct
36 Correct 185 ms 66816 KB Output is correct
37 Correct 100 ms 66772 KB Output is correct
38 Correct 55 ms 66660 KB Output is correct
39 Correct 91 ms 66764 KB Output is correct
40 Correct 122 ms 66772 KB Output is correct
41 Correct 47 ms 66772 KB Output is correct
42 Correct 42 ms 66708 KB Output is correct
43 Correct 48 ms 66772 KB Output is correct
44 Correct 32 ms 66636 KB Output is correct
45 Correct 49 ms 66780 KB Output is correct
46 Correct 40 ms 66772 KB Output is correct
47 Correct 50 ms 66772 KB Output is correct
48 Correct 42 ms 66772 KB Output is correct
49 Correct 50 ms 66716 KB Output is correct
50 Correct 35 ms 66772 KB Output is correct
51 Correct 52 ms 66740 KB Output is correct
52 Correct 31 ms 66740 KB Output is correct
53 Correct 47 ms 66772 KB Output is correct
54 Correct 34 ms 66728 KB Output is correct
55 Correct 52 ms 66760 KB Output is correct
56 Correct 36 ms 66756 KB Output is correct
57 Correct 50 ms 66764 KB Output is correct
58 Correct 37 ms 66764 KB Output is correct
59 Correct 234 ms 66768 KB Output is correct
60 Correct 143 ms 66768 KB Output is correct
61 Correct 231 ms 66736 KB Output is correct
62 Correct 138 ms 66892 KB Output is correct
63 Correct 234 ms 66776 KB Output is correct
64 Correct 136 ms 66772 KB Output is correct
65 Correct 209 ms 66772 KB Output is correct
66 Correct 181 ms 66776 KB Output is correct
67 Correct 183 ms 66780 KB Output is correct
68 Correct 156 ms 66772 KB Output is correct
69 Correct 207 ms 66772 KB Output is correct
70 Correct 206 ms 66888 KB Output is correct
71 Correct 189 ms 66776 KB Output is correct
72 Correct 198 ms 66780 KB Output is correct
73 Correct 176 ms 66776 KB Output is correct
74 Correct 163 ms 66772 KB Output is correct
75 Correct 184 ms 66772 KB Output is correct
76 Correct 234 ms 66792 KB Output is correct
77 Correct 227 ms 66784 KB Output is correct
78 Correct 159 ms 66772 KB Output is correct
79 Correct 211 ms 66776 KB Output is correct
80 Correct 218 ms 66776 KB Output is correct
81 Correct 162 ms 66776 KB Output is correct
82 Correct 185 ms 66672 KB Output is correct
83 Correct 225 ms 66764 KB Output is correct
84 Correct 185 ms 66772 KB Output is correct
85 Correct 210 ms 66800 KB Output is correct
86 Correct 197 ms 66772 KB Output is correct
87 Correct 184 ms 66776 KB Output is correct
88 Correct 249 ms 66764 KB Output is correct
89 Correct 238 ms 66884 KB Output is correct
90 Correct 182 ms 66764 KB Output is correct
91 Correct 236 ms 66676 KB Output is correct
92 Correct 245 ms 66776 KB Output is correct
93 Correct 230 ms 66780 KB Output is correct