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Submission #201937

# Submission time Handle Problem Language Result Execution time Memory
201937 2020-02-12T21:16:13 Z Osama_Alkhodairy Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 167 ms 135544 KB 
#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

const int N = 205;

int n, L;
ll dp[N][N][2][N];
vector <int> x, t;

void minimize(ll &x, ll y){
    x = min(x, y);
}
int pos(int l, int r, int dir){
    if(dir == 0) return l;
    return r;
}
int dist(int l, int r, int dir){
    l = x[l]; r = x[r];
    if(dir == 0){
        if(r <= l) return l - r;
        return l + L - r;
    }
    if(l <= r) return r - l;
    return L - l + r;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    for(int l = 0 ; l < N ; l++){
        for(int r = 0 ; r < N ; r++){
            for(int dir = 0 ; dir < 2 ; dir++){
                for(int ans = 0 ; ans < N ; ans++){
                    dp[l][r][dir][ans] = 1e18;
                }
            }
        }
    }
    cin >> n >> L;
    x.resize(n);
    for(auto &i : x) cin >> i;
    t.resize(n);
    for(auto &i : t) cin >> i;
    x.insert(x.begin(), 0);
    t.insert(t.begin(), 0);
    n++;
    dp[0][0][0][0] = dp[0][0][1][0] = 0;
    for(int len = 0 ; len < n - 1 ; len++){
        for(int l = 0 ; l < n ; l++){
            int r = (l + len) % n;
            if(l != 0 && l <= r) continue;
            int pre = (l - 1 + n) % n;
            int nex = (r + 1) % n;
            for(int dir = 0 ; dir < 2 ; dir++){
                for(int ans = 0 ; ans <= len ; ans++){
                    ll d = dist(pos(l, r, dir), pre, 0) + dp[l][r][dir][ans];
                    minimize(dp[pre][r][0][ans + (d <= t[pre])], d);
                    d = dist(pos(l, r, dir), nex, 1) + dp[l][r][dir][ans];
                    minimize(dp[l][nex][1][ans + (d <= t[nex])], d);
                }
            }
        }
    }
    int res = 0;
    for(int l = 0 ; l < n ; l++){
        for(int r = 0 ; r < n ; r++){
            for(int dir = 0 ; dir < 2 ; dir++){
                for(int ans = 0 ; ans < n ; ans++){
                    if(dp[l][r][dir][ans] != 1e18){
                        res = max(res, ans);
                    }
                }
            }
        }
    }
    cout << res << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 135160 KB Output is correct
2 Correct 75 ms 135160 KB Output is correct
3 Correct 75 ms 135160 KB Output is correct
4 Correct 76 ms 135164 KB Output is correct
5 Correct 76 ms 135288 KB Output is correct
6 Correct 76 ms 135160 KB Output is correct
7 Correct 75 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 77 ms 135288 KB Output is correct
10 Correct 80 ms 135164 KB Output is correct
11 Correct 75 ms 135160 KB Output is correct
12 Correct 74 ms 135160 KB Output is correct
13 Correct 73 ms 135152 KB Output is correct
14 Correct 77 ms 135288 KB Output is correct
15 Correct 79 ms 135160 KB Output is correct
16 Correct 80 ms 135160 KB Output is correct
17 Correct 75 ms 135160 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 135160 KB Output is correct
2 Correct 75 ms 135160 KB Output is correct
3 Correct 75 ms 135160 KB Output is correct
4 Correct 76 ms 135164 KB Output is correct
5 Correct 76 ms 135288 KB Output is correct
6 Correct 76 ms 135160 KB Output is correct
7 Correct 75 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 77 ms 135288 KB Output is correct
10 Correct 80 ms 135164 KB Output is correct
11 Correct 75 ms 135160 KB Output is correct
12 Correct 74 ms 135160 KB Output is correct
13 Correct 73 ms 135152 KB Output is correct
14 Correct 77 ms 135288 KB Output is correct
15 Correct 79 ms 135160 KB Output is correct
16 Correct 80 ms 135160 KB Output is correct
17 Correct 75 ms 135160 KB Output is correct
18 Correct 75 ms 135164 KB Output is correct
19 Correct 75 ms 135288 KB Output is correct
20 Correct 75 ms 135252 KB Output is correct
21 Correct 76 ms 135160 KB Output is correct
22 Correct 72 ms 135160 KB Output is correct
23 Correct 77 ms 135160 KB Output is correct
24 Correct 77 ms 135160 KB Output is correct
25 Correct 74 ms 135160 KB Output is correct
26 Correct 76 ms 135160 KB Output is correct
27 Correct 75 ms 135164 KB Output is correct
28 Correct 76 ms 135160 KB Output is correct
29 Correct 75 ms 135160 KB Output is correct
30 Correct 73 ms 135160 KB Output is correct
31 Correct 74 ms 135160 KB Output is correct
32 Correct 72 ms 135160 KB Output is correct
33 Correct 74 ms 135160 KB Output is correct
34 Correct 79 ms 135416 KB Output is correct
35 Correct 75 ms 135160 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 135160 KB Output is correct
2 Correct 75 ms 135160 KB Output is correct
3 Correct 75 ms 135160 KB Output is correct
4 Correct 76 ms 135164 KB Output is correct
5 Correct 76 ms 135288 KB Output is correct
6 Correct 76 ms 135160 KB Output is correct
7 Correct 75 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 77 ms 135288 KB Output is correct
10 Correct 80 ms 135164 KB Output is correct
11 Correct 75 ms 135160 KB Output is correct
12 Correct 74 ms 135160 KB Output is correct
13 Correct 73 ms 135152 KB Output is correct
14 Correct 77 ms 135288 KB Output is correct
15 Correct 79 ms 135160 KB Output is correct
16 Correct 80 ms 135160 KB Output is correct
17 Correct 75 ms 135160 KB Output is correct
18 Correct 135 ms 135160 KB Output is correct
19 Correct 107 ms 135160 KB Output is correct
20 Correct 90 ms 135160 KB Output is correct
21 Correct 104 ms 135160 KB Output is correct
22 Correct 117 ms 135160 KB Output is correct
23 Correct 88 ms 135160 KB Output is correct
24 Correct 84 ms 135160 KB Output is correct
25 Correct 85 ms 135288 KB Output is correct
26 Correct 77 ms 135164 KB Output is correct
27 Correct 84 ms 135160 KB Output is correct
28 Correct 84 ms 135160 KB Output is correct
29 Correct 85 ms 135288 KB Output is correct
30 Correct 85 ms 135160 KB Output is correct
31 Correct 87 ms 135288 KB Output is correct
32 Correct 80 ms 135160 KB Output is correct
33 Correct 86 ms 135160 KB Output is correct
34 Correct 78 ms 135288 KB Output is correct
35 Correct 87 ms 135288 KB Output is correct
36 Correct 78 ms 135160 KB Output is correct
37 Correct 88 ms 135160 KB Output is correct
38 Correct 81 ms 135160 KB Output is correct
39 Correct 87 ms 135160 KB Output is correct
40 Correct 82 ms 135288 KB Output is correct
41 Correct 167 ms 135288 KB Output is correct
42 Correct 121 ms 135160 KB Output is correct
43 Correct 149 ms 135160 KB Output is correct
44 Correct 124 ms 135288 KB Output is correct
45 Correct 151 ms 135160 KB Output is correct
46 Correct 112 ms 135160 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 135160 KB Output is correct
2 Correct 75 ms 135160 KB Output is correct
3 Correct 75 ms 135160 KB Output is correct
4 Correct 76 ms 135164 KB Output is correct
5 Correct 76 ms 135288 KB Output is correct
6 Correct 76 ms 135160 KB Output is correct
7 Correct 75 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 77 ms 135288 KB Output is correct
10 Correct 80 ms 135164 KB Output is correct
11 Correct 75 ms 135160 KB Output is correct
12 Correct 74 ms 135160 KB Output is correct
13 Correct 73 ms 135152 KB Output is correct
14 Correct 77 ms 135288 KB Output is correct
15 Correct 79 ms 135160 KB Output is correct
16 Correct 80 ms 135160 KB Output is correct
17 Correct 75 ms 135160 KB Output is correct
18 Correct 75 ms 135164 KB Output is correct
19 Correct 75 ms 135288 KB Output is correct
20 Correct 75 ms 135252 KB Output is correct
21 Correct 76 ms 135160 KB Output is correct
22 Correct 72 ms 135160 KB Output is correct
23 Correct 77 ms 135160 KB Output is correct
24 Correct 77 ms 135160 KB Output is correct
25 Correct 74 ms 135160 KB Output is correct
26 Correct 76 ms 135160 KB Output is correct
27 Correct 75 ms 135164 KB Output is correct
28 Correct 76 ms 135160 KB Output is correct
29 Correct 75 ms 135160 KB Output is correct
30 Correct 73 ms 135160 KB Output is correct
31 Correct 74 ms 135160 KB Output is correct
32 Correct 72 ms 135160 KB Output is correct
33 Correct 74 ms 135160 KB Output is correct
34 Correct 79 ms 135416 KB Output is correct
35 Correct 75 ms 135160 KB Output is correct
36 Correct 135 ms 135160 KB Output is correct
37 Correct 107 ms 135160 KB Output is correct
38 Correct 90 ms 135160 KB Output is correct
39 Correct 104 ms 135160 KB Output is correct
40 Correct 117 ms 135160 KB Output is correct
41 Correct 88 ms 135160 KB Output is correct
42 Correct 84 ms 135160 KB Output is correct
43 Correct 85 ms 135288 KB Output is correct
44 Correct 77 ms 135164 KB Output is correct
45 Correct 84 ms 135160 KB Output is correct
46 Correct 84 ms 135160 KB Output is correct
47 Correct 85 ms 135288 KB Output is correct
48 Correct 85 ms 135160 KB Output is correct
49 Correct 87 ms 135288 KB Output is correct
50 Correct 80 ms 135160 KB Output is correct
51 Correct 86 ms 135160 KB Output is correct
52 Correct 78 ms 135288 KB Output is correct
53 Correct 87 ms 135288 KB Output is correct
54 Correct 78 ms 135160 KB Output is correct
55 Correct 88 ms 135160 KB Output is correct
56 Correct 81 ms 135160 KB Output is correct
57 Correct 87 ms 135160 KB Output is correct
58 Correct 82 ms 135288 KB Output is correct
59 Correct 167 ms 135288 KB Output is correct
60 Correct 121 ms 135160 KB Output is correct
61 Correct 149 ms 135160 KB Output is correct
62 Correct 124 ms 135288 KB Output is correct
63 Correct 151 ms 135160 KB Output is correct
64 Correct 112 ms 135160 KB Output is correct
65 Correct 150 ms 135160 KB Output is correct
66 Correct 142 ms 135544 KB Output is correct
67 Correct 135 ms 135160 KB Output is correct
68 Correct 117 ms 135160 KB Output is correct
69 Correct 144 ms 135160 KB Output is correct
70 Correct 151 ms 135408 KB Output is correct
71 Correct 144 ms 135160 KB Output is correct
72 Correct 143 ms 135160 KB Output is correct
73 Correct 139 ms 135160 KB Output is correct
74 Correct 131 ms 135160 KB Output is correct
75 Correct 141 ms 135160 KB Output is correct
76 Correct 155 ms 135220 KB Output is correct
77 Correct 154 ms 135160 KB Output is correct
78 Correct 129 ms 135416 KB Output is correct
79 Correct 131 ms 135160 KB Output is correct
80 Correct 150 ms 135260 KB Output is correct
81 Correct 133 ms 135160 KB Output is correct
82 Correct 139 ms 135288 KB Output is correct
83 Correct 161 ms 135160 KB Output is correct
84 Correct 145 ms 135260 KB Output is correct
85 Correct 152 ms 135288 KB Output is correct
86 Correct 147 ms 135160 KB Output is correct
87 Correct 125 ms 135160 KB Output is correct
88 Correct 163 ms 135160 KB Output is correct
89 Correct 165 ms 135288 KB Output is correct
90 Correct 141 ms 135160 KB Output is correct
91 Correct 163 ms 135160 KB Output is correct
92 Correct 164 ms 135160 KB Output is correct
93 Correct 162 ms 135160 KB Output is correct