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Submission #535715

# Submission time Handle Problem Language Result Execution time Memory
535715 2022-03-11T02:22:25 Z sam571128 Collecting Stamps 3 (JOI20_ho_t3) C++17
15 / 100
 1101 ms 266688 KB 
#include <bits/stdc++.h>

#define int long long
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

const int N = 16;
int dp[1<<N][N][N], x[N], t[N], ans = 0;
//mask, at, taken, dp[i][j][k] => time

signed main(){
    fastio
    int n,l;
    cin >> n >> l;

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

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

    for(int mask = 0;mask < (1<<n);mask++){
        for(int i = 0;i < n;i++){
            for(int j = 0;j <= n;j++){
                dp[mask][i][j] = 1e18;
            }
        }
    }

    for(int i = 0;i < n;i++){
        int tmp = min(x[i],(0-x[i]+l)%l);
        int take = (tmp <= t[i]);
        dp[(1<<i)][i][take] = tmp;
    }

    for(int mask = 0; mask < (1<<n); mask++){
        for(int i = 0;i < n;i++){
            if(mask&(1<<i)){
                for(int j = 0;j < n;j++){
                    if(!(mask&(1<<j))){
                        for(int take = 0;take < n;take++){
                            if(dp[mask][i][take]>=1e18) continue;
                            int tmp = min((x[j]-x[i]+l)%l,(x[i]-x[j]+l)%l);
                            int tt = dp[mask][i][take]+tmp;
                            dp[mask^(1<<j)][j][take+(tt<=t[j])] = min(dp[mask^(1<<j)][j][take+(tt<=t[j])],tt);
                        }
                    }
                }
            }
        }
    }

    int ans = 0;

    for(int mask = 0;mask < (1<<n);mask++){
        for(int i = 0;i < n;i++){
            for(int j = 0;j <= n;j++){
                if(dp[mask][i][j]<1e18){
                    ans = max(ans,j);
                }
            }
        }
    }

    cout << ans << "\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 1344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 18 ms 8404 KB Output is correct
7 Correct 1 ms 816 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 16 ms 8532 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 20 ms 8532 KB Output is correct
13 Correct 19 ms 8528 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 11 ms 8532 KB Output is correct
17 Correct 11 ms 8408 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 1344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 18 ms 8404 KB Output is correct
7 Correct 1 ms 816 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 16 ms 8532 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 20 ms 8532 KB Output is correct
13 Correct 19 ms 8528 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 11 ms 8532 KB Output is correct
17 Correct 11 ms 8408 KB Output is correct
18 Correct 100 ms 33152 KB Output is correct
19 Correct 3 ms 2260 KB Output is correct
20 Correct 16 ms 8532 KB Output is correct
21 Correct 100 ms 33132 KB Output is correct
22 Correct 2 ms 1236 KB Output is correct
23 Correct 220 ms 65968 KB Output is correct
24 Correct 34 ms 16724 KB Output is correct
25 Correct 93 ms 33056 KB Output is correct
26 Correct 89 ms 33136 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 2 ms 1236 KB Output is correct
29 Correct 273 ms 65968 KB Output is correct
30 Correct 230 ms 65968 KB Output is correct
31 Correct 49 ms 33108 KB Output is correct
32 Correct 24 ms 16724 KB Output is correct
33 Correct 134 ms 65964 KB Output is correct
34 Correct 141 ms 65868 KB Output is correct
35 Correct 152 ms 65972 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 1344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 18 ms 8404 KB Output is correct
7 Correct 1 ms 816 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 16 ms 8532 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 20 ms 8532 KB Output is correct
13 Correct 19 ms 8528 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 11 ms 8532 KB Output is correct
17 Correct 11 ms 8408 KB Output is correct
18 Runtime error 1101 ms 266688 KB Execution killed with signal 11
19 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 1344 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 18 ms 8404 KB Output is correct
7 Correct 1 ms 816 KB Output is correct
8 Correct 3 ms 2260 KB Output is correct
9 Correct 16 ms 8532 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 20 ms 8532 KB Output is correct
13 Correct 19 ms 8528 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 11 ms 8532 KB Output is correct
17 Correct 11 ms 8408 KB Output is correct
18 Correct 100 ms 33152 KB Output is correct
19 Correct 3 ms 2260 KB Output is correct
20 Correct 16 ms 8532 KB Output is correct
21 Correct 100 ms 33132 KB Output is correct
22 Correct 2 ms 1236 KB Output is correct
23 Correct 220 ms 65968 KB Output is correct
24 Correct 34 ms 16724 KB Output is correct
25 Correct 93 ms 33056 KB Output is correct
26 Correct 89 ms 33136 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 2 ms 1236 KB Output is correct
29 Correct 273 ms 65968 KB Output is correct
30 Correct 230 ms 65968 KB Output is correct
31 Correct 49 ms 33108 KB Output is correct
32 Correct 24 ms 16724 KB Output is correct
33 Correct 134 ms 65964 KB Output is correct
34 Correct 141 ms 65868 KB Output is correct
35 Correct 152 ms 65972 KB Output is correct
36 Runtime error 1101 ms 266688 KB Execution killed with signal 11
37 Halted 0 ms 0 KB -