oj.uz

Submission #362234

# Submission time Handle Problem Language Result Execution time Memory
362234 2021-02-02T10:09:22 Z knightron0 Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 149 ms 130720 KB 
#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define int long long int
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define float long double

const int MOD = 1e9 + 7;
const int INF = 2e15;
const int MAXN =205;

int n, m;
int a[MAXN], b[MAXN];

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    #ifdef LOCAL
    freopen("input.txt", "r", stdin);
    #endif
    cin>>n>>m;
    for(int i= 1;i<=n;i++){
    	cin>>a[i];
    }
    for(int i= 1;i<=n;i++){
    	cin>>b[i];
    }
    int dp[n+3][n+3][n+3][2];
    for(int i = 0;i<=n+1;i++){
        for(int j= n+1;j>=0;j--){
            for(int k = 0;k<=n+1;k++){
                dp[i][j][k][0] = dp[i][j][k][1] = INF;
            }
        }
    }
    // i = ith index from right
    // j = jth index from left
    // k = number of taken stamps
    dp[0][n+1][0][0] = 0;
    dp[0][n+1][0][1] = 0;
    int ans = 0;
    for(int i = 0;i<n;i++){
        for(int j= n+1;j>=1;j--){
            if(j <= i+1) break;
            for(int k = 0;k<=n;k++){   
                for(int p= 0;p<2;p++){
                    if(p == 0){
                        int last;
                        if(j == n+1) last = m;
                        else last = a[j];
                        int dist1 = a[i+1] - a[i];
                        int dist2 = a[i+1] + m - last;
                        int t1 = min(dp[i][j][k][0] + dist1, dp[i][j][k][1] + dist2);
                        int newk = k;
                        if(t1 <= b[i+1]) newk++;
                        dp[i+1][j][newk][0] = min(dp[i+1][j][newk][0], t1);
                        if(dp[i+1][j][newk][0] < INF){
                            ans = max(ans,newk);
                        }
                    } else {
                        int last;
                        if(j == n+1) last = m;
                        else last = a[j];
                        int dist1 = last - a[j-1];
                        int dist2 = a[i] + m - a[j-1];
                        int t2 = min(dp[i][j][k][1] + dist1, dp[i][j][k][0] + dist2);
                        int newk = k;
                        if(t2 <= b[j-1]) newk++;
                        dp[i][j-1][newk][1] = min(dp[i][j-1][newk][1], t2);
                        if(dp[i][j-1][newk][1] < INF){
                            ans = max(ans, newk);
                        }
                    }   
                
                }
            }
        }
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 107 ms 94116 KB Output is correct
19 Correct 53 ms 44928 KB Output is correct
20 Correct 21 ms 17772 KB Output is correct
21 Correct 48 ms 41196 KB Output is correct
22 Correct 72 ms 60524 KB Output is correct
23 Correct 17 ms 14060 KB Output is correct
24 Correct 11 ms 9964 KB Output is correct
25 Correct 16 ms 13676 KB Output is correct
26 Correct 5 ms 3436 KB Output is correct
27 Correct 17 ms 14464 KB Output is correct
28 Correct 10 ms 8812 KB Output is correct
29 Correct 19 ms 14956 KB Output is correct
30 Correct 12 ms 10476 KB Output is correct
31 Correct 16 ms 13676 KB Output is correct
32 Correct 7 ms 5356 KB Output is correct
33 Correct 19 ms 13580 KB Output is correct
34 Correct 4 ms 3180 KB Output is correct
35 Correct 16 ms 13164 KB Output is correct
36 Correct 5 ms 4588 KB Output is correct
37 Correct 17 ms 14444 KB Output is correct
38 Correct 7 ms 6124 KB Output is correct
39 Correct 18 ms 15340 KB Output is correct
40 Correct 7 ms 7148 KB Output is correct
41 Correct 146 ms 128876 KB Output is correct
42 Correct 83 ms 71532 KB Output is correct
43 Correct 146 ms 128796 KB Output is correct
44 Correct 84 ms 70272 KB Output is correct
45 Correct 131 ms 128748 KB Output is correct
46 Correct 83 ms 71660 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 107 ms 94116 KB Output is correct
37 Correct 53 ms 44928 KB Output is correct
38 Correct 21 ms 17772 KB Output is correct
39 Correct 48 ms 41196 KB Output is correct
40 Correct 72 ms 60524 KB Output is correct
41 Correct 17 ms 14060 KB Output is correct
42 Correct 11 ms 9964 KB Output is correct
43 Correct 16 ms 13676 KB Output is correct
44 Correct 5 ms 3436 KB Output is correct
45 Correct 17 ms 14464 KB Output is correct
46 Correct 10 ms 8812 KB Output is correct
47 Correct 19 ms 14956 KB Output is correct
48 Correct 12 ms 10476 KB Output is correct
49 Correct 16 ms 13676 KB Output is correct
50 Correct 7 ms 5356 KB Output is correct
51 Correct 19 ms 13580 KB Output is correct
52 Correct 4 ms 3180 KB Output is correct
53 Correct 16 ms 13164 KB Output is correct
54 Correct 5 ms 4588 KB Output is correct
55 Correct 17 ms 14444 KB Output is correct
56 Correct 7 ms 6124 KB Output is correct
57 Correct 18 ms 15340 KB Output is correct
58 Correct 7 ms 7148 KB Output is correct
59 Correct 146 ms 128876 KB Output is correct
60 Correct 83 ms 71532 KB Output is correct
61 Correct 146 ms 128796 KB Output is correct
62 Correct 84 ms 70272 KB Output is correct
63 Correct 131 ms 128748 KB Output is correct
64 Correct 83 ms 71660 KB Output is correct
65 Correct 132 ms 110572 KB Output is correct
66 Correct 117 ms 97388 KB Output is correct
67 Correct 106 ms 91264 KB Output is correct
68 Correct 96 ms 80876 KB Output is correct
69 Correct 129 ms 108908 KB Output is correct
70 Correct 117 ms 102124 KB Output is correct
71 Correct 119 ms 103868 KB Output is correct
72 Correct 122 ms 105452 KB Output is correct
73 Correct 109 ms 94316 KB Output is correct
74 Correct 103 ms 85228 KB Output is correct
75 Correct 113 ms 98924 KB Output is correct
76 Correct 138 ms 121196 KB Output is correct
77 Correct 140 ms 121196 KB Output is correct
78 Correct 96 ms 82412 KB Output is correct
79 Correct 102 ms 86636 KB Output is correct
80 Correct 127 ms 117612 KB Output is correct
81 Correct 101 ms 88172 KB Output is correct
82 Correct 111 ms 95724 KB Output is correct
83 Correct 147 ms 129004 KB Output is correct
84 Correct 123 ms 102052 KB Output is correct
85 Correct 133 ms 115948 KB Output is correct
86 Correct 127 ms 112364 KB Output is correct
87 Correct 113 ms 98924 KB Output is correct
88 Correct 147 ms 130668 KB Output is correct
89 Correct 147 ms 130720 KB Output is correct
90 Correct 114 ms 100716 KB Output is correct
91 Correct 148 ms 130668 KB Output is correct
92 Correct 149 ms 130668 KB Output is correct
93 Correct 144 ms 126828 KB Output is correct