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Submission #256203

# Submission time Handle Problem Language Result Execution time Memory
256203 2020-08-02T11:26:33 Z ttnhuy313 Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 161 ms 135292 KB 
#include <iostream>
#include <algorithm>
using namespace std;

template<class T> T &chmin(T &a,const T &b){ return a = min(a,b); }
template<class T> T &chmax(T &a,const T &b){ return a = max(a,b); }

using ll = long long;
const ll INF = 1e18;

ll dp[210][210][2][210];

signed main(){
    int n;
    ll l,x[210] = {},t[210];
    cin >> n >> l;
    for(int i = 0;i < n;i++) cin >> x[i + 1];
    for(int i = 0;i < n;i++) cin >> t[i + 1];
    x[n + 1] = l;
    for(int i = 0;i <= n + 1;i++){
        for(int j = 0;j <= n + 1;j++){
            for(int k = 0;k < 2;k++){
                for(int m = 0;m <= n;m++) dp[i][j][k][m] = INF;
            }
        }
    }
    dp[0][n + 1][0][0] = dp[0][n + 1][1][0] = 0;
    for(int i = 0;i < n;i++){
        for(int j = n + 1;j >= i + 2;j--){
            for(int m = 0;m <= n;m++){
                ll tim = min(dp[i][j][0][m]+x[i+1]-x[i],dp[i][j][1][m]+l-x[j]+x[i+1]);
                chmin(dp[i + 1][j][0][m + (tim <= t[i + 1])],tim);
                tim = min(dp[i][j][0][m]+l-x[j-1]+x[i],dp[i][j][1][m]+x[j]-x[j-1]);
                chmin(dp[i][j - 1][1][m + (tim <= t[j - 1])],tim);
            }
        }
    }
    int ans = 0;
    for(int i = 0;i <= n + 1;i++){
        for(int j = 0;j <= n + 1;j++){
            for(int k = 0;k < 2;k++){
                for(int m = 0;m <= n;m++){
                    if(dp[i][j][k][m] != INF) chmax(ans,m);
                }
            }
        }
    }
    cout << ans << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 1 ms 768 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 640 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 1 ms 1024 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 1 ms 768 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 640 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 1 ms 1024 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 888 KB Output is correct
20 Correct 1 ms 1024 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 768 KB Output is correct
23 Correct 1 ms 1280 KB Output is correct
24 Correct 1 ms 1152 KB Output is correct
25 Correct 1 ms 1152 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 640 KB Output is correct
28 Correct 1 ms 768 KB Output is correct
29 Correct 1 ms 1280 KB Output is correct
30 Correct 1 ms 1280 KB Output is correct
31 Correct 1 ms 1152 KB Output is correct
32 Correct 1 ms 1152 KB Output is correct
33 Correct 1 ms 1280 KB Output is correct
34 Correct 1 ms 1280 KB Output is correct
35 Correct 1 ms 1280 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 1 ms 768 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 640 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 1 ms 1024 KB Output is correct
18 Correct 113 ms 108792 KB Output is correct
19 Correct 64 ms 66280 KB Output is correct
20 Correct 38 ms 35576 KB Output is correct
21 Correct 68 ms 62716 KB Output is correct
22 Correct 81 ms 80888 KB Output is correct
23 Correct 26 ms 30336 KB Output is correct
24 Correct 20 ms 23808 KB Output is correct
25 Correct 26 ms 29696 KB Output is correct
26 Correct 11 ms 11640 KB Output is correct
27 Correct 28 ms 30976 KB Output is correct
28 Correct 19 ms 22144 KB Output is correct
29 Correct 27 ms 31616 KB Output is correct
30 Correct 21 ms 24960 KB Output is correct
31 Correct 26 ms 29696 KB Output is correct
32 Correct 12 ms 15744 KB Output is correct
33 Correct 26 ms 29696 KB Output is correct
34 Correct 8 ms 10880 KB Output is correct
35 Correct 32 ms 29056 KB Output is correct
36 Correct 11 ms 14080 KB Output is correct
37 Correct 27 ms 30976 KB Output is correct
38 Correct 17 ms 17152 KB Output is correct
39 Correct 28 ms 32256 KB Output is correct
40 Correct 16 ms 19072 KB Output is correct
41 Correct 153 ms 133992 KB Output is correct
42 Correct 93 ms 90616 KB Output is correct
43 Correct 146 ms 133880 KB Output is correct
44 Correct 93 ms 89464 KB Output is correct
45 Correct 147 ms 133984 KB Output is correct
46 Correct 93 ms 90616 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 512 KB Output is correct
3 Correct 1 ms 768 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 896 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 640 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 1 ms 1024 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 888 KB Output is correct
20 Correct 1 ms 1024 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 768 KB Output is correct
23 Correct 1 ms 1280 KB Output is correct
24 Correct 1 ms 1152 KB Output is correct
25 Correct 1 ms 1152 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 640 KB Output is correct
28 Correct 1 ms 768 KB Output is correct
29 Correct 1 ms 1280 KB Output is correct
30 Correct 1 ms 1280 KB Output is correct
31 Correct 1 ms 1152 KB Output is correct
32 Correct 1 ms 1152 KB Output is correct
33 Correct 1 ms 1280 KB Output is correct
34 Correct 1 ms 1280 KB Output is correct
35 Correct 1 ms 1280 KB Output is correct
36 Correct 113 ms 108792 KB Output is correct
37 Correct 64 ms 66280 KB Output is correct
38 Correct 38 ms 35576 KB Output is correct
39 Correct 68 ms 62716 KB Output is correct
40 Correct 81 ms 80888 KB Output is correct
41 Correct 26 ms 30336 KB Output is correct
42 Correct 20 ms 23808 KB Output is correct
43 Correct 26 ms 29696 KB Output is correct
44 Correct 11 ms 11640 KB Output is correct
45 Correct 28 ms 30976 KB Output is correct
46 Correct 19 ms 22144 KB Output is correct
47 Correct 27 ms 31616 KB Output is correct
48 Correct 21 ms 24960 KB Output is correct
49 Correct 26 ms 29696 KB Output is correct
50 Correct 12 ms 15744 KB Output is correct
51 Correct 26 ms 29696 KB Output is correct
52 Correct 8 ms 10880 KB Output is correct
53 Correct 32 ms 29056 KB Output is correct
54 Correct 11 ms 14080 KB Output is correct
55 Correct 27 ms 30976 KB Output is correct
56 Correct 17 ms 17152 KB Output is correct
57 Correct 28 ms 32256 KB Output is correct
58 Correct 16 ms 19072 KB Output is correct
59 Correct 153 ms 133992 KB Output is correct
60 Correct 93 ms 90616 KB Output is correct
61 Correct 146 ms 133880 KB Output is correct
62 Correct 93 ms 89464 KB Output is correct
63 Correct 147 ms 133984 KB Output is correct
64 Correct 93 ms 90616 KB Output is correct
65 Correct 133 ms 121080 KB Output is correct
66 Correct 119 ms 111188 KB Output is correct
67 Correct 116 ms 106404 KB Output is correct
68 Correct 100 ms 98296 KB Output is correct
69 Correct 143 ms 119800 KB Output is correct
70 Correct 134 ms 114808 KB Output is correct
71 Correct 114 ms 115960 KB Output is correct
72 Correct 124 ms 117240 KB Output is correct
73 Correct 113 ms 108792 KB Output is correct
74 Correct 119 ms 101624 KB Output is correct
75 Correct 133 ms 112376 KB Output is correct
76 Correct 157 ms 128632 KB Output is correct
77 Correct 152 ms 128760 KB Output is correct
78 Correct 115 ms 99448 KB Output is correct
79 Correct 118 ms 102904 KB Output is correct
80 Correct 132 ms 126064 KB Output is correct
81 Correct 120 ms 104184 KB Output is correct
82 Correct 130 ms 109944 KB Output is correct
83 Correct 161 ms 133880 KB Output is correct
84 Correct 137 ms 114808 KB Output is correct
85 Correct 135 ms 124832 KB Output is correct
86 Correct 131 ms 122232 KB Output is correct
87 Correct 111 ms 112376 KB Output is correct
88 Correct 148 ms 135288 KB Output is correct
89 Correct 150 ms 135292 KB Output is correct
90 Correct 119 ms 113532 KB Output is correct
91 Correct 149 ms 135288 KB Output is correct
92 Correct 148 ms 135288 KB Output is correct
93 Correct 148 ms 132728 KB Output is correct