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Submission #99973

# Submission time Handle Problem Language Result Execution time Memory
99973 2019-03-09T05:47:03 Z dwsc Roller Coaster Railroad (IOI16_railroad) C++14
34 / 100
 166 ms 16128 KB 
#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
long long memo[20][100000];
int n;
int arr1[20],arr2[20];
long long dp(int prev,int bm){
    if (bm == (1<<n)-1) return 0;
    if (memo[prev][bm] != -1) return memo[prev][bm];
    memo[prev][bm] = 1e18;
    for (int i = 0; i < n; i++){
        if (bm & (1<<i)) continue;
        int cost = max(0,arr2[prev]-arr1[i]);
        memo[prev][bm] = min(memo[prev][bm],dp(i,bm+(1<<i))+cost);
    }
    return memo[prev][bm];
}
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    n = (int) s.size();
    if (n > 20) return 0;
    for (int i = 0; i < n; i++){
        arr1[i] = s[i];
        arr2[i] = t[i];
    }
    for (int i = 0; i < 20; i++)for (int j = 0; j < 100000; j++) memo[i][j] = -1;
    long long ans = 1e18;
    for (int i = 0; i < n; i++) ans = min(ans,dp(i,1<<i));
    return ans;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16000 KB n = 2
2 Correct 15 ms 16000 KB n = 2
3 Correct 16 ms 16000 KB n = 2
4 Correct 16 ms 16000 KB n = 2
5 Correct 15 ms 16000 KB n = 2
6 Correct 15 ms 16000 KB n = 2
7 Correct 15 ms 16000 KB n = 3
8 Correct 14 ms 16000 KB n = 3
9 Correct 18 ms 16000 KB n = 3
10 Correct 18 ms 16000 KB n = 8
11 Correct 16 ms 16000 KB n = 8
12 Correct 18 ms 16000 KB n = 8
13 Correct 16 ms 16000 KB n = 8
14 Correct 15 ms 16000 KB n = 8
15 Correct 18 ms 16000 KB n = 8
16 Correct 17 ms 16000 KB n = 8
17 Correct 16 ms 16000 KB n = 8
18 Correct 16 ms 16000 KB n = 8
19 Correct 14 ms 16000 KB n = 3
20 Correct 15 ms 16000 KB n = 7
21 Correct 15 ms 16000 KB n = 8
22 Correct 16 ms 16000 KB n = 8
23 Correct 16 ms 16000 KB n = 8
24 Correct 18 ms 16000 KB n = 8
25 Correct 19 ms 16000 KB n = 8

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16000 KB n = 2
2 Correct 15 ms 16000 KB n = 2
3 Correct 16 ms 16000 KB n = 2
4 Correct 16 ms 16000 KB n = 2
5 Correct 15 ms 16000 KB n = 2
6 Correct 15 ms 16000 KB n = 2
7 Correct 15 ms 16000 KB n = 3
8 Correct 14 ms 16000 KB n = 3
9 Correct 18 ms 16000 KB n = 3
10 Correct 18 ms 16000 KB n = 8
11 Correct 16 ms 16000 KB n = 8
12 Correct 18 ms 16000 KB n = 8
13 Correct 16 ms 16000 KB n = 8
14 Correct 15 ms 16000 KB n = 8
15 Correct 18 ms 16000 KB n = 8
16 Correct 17 ms 16000 KB n = 8
17 Correct 16 ms 16000 KB n = 8
18 Correct 16 ms 16000 KB n = 8
19 Correct 14 ms 16000 KB n = 3
20 Correct 15 ms 16000 KB n = 7
21 Correct 15 ms 16000 KB n = 8
22 Correct 16 ms 16000 KB n = 8
23 Correct 16 ms 16000 KB n = 8
24 Correct 18 ms 16000 KB n = 8
25 Correct 19 ms 16000 KB n = 8
26 Correct 18 ms 16000 KB n = 8
27 Correct 16 ms 16128 KB n = 8
28 Correct 16 ms 16000 KB n = 8
29 Correct 135 ms 16092 KB n = 16
30 Correct 161 ms 16016 KB n = 16
31 Correct 166 ms 16000 KB n = 16
32 Correct 166 ms 16000 KB n = 16
33 Correct 152 ms 16000 KB n = 16
34 Correct 162 ms 16000 KB n = 16
35 Correct 143 ms 16000 KB n = 16
36 Correct 49 ms 16000 KB n = 15
37 Correct 15 ms 16000 KB n = 8
38 Correct 159 ms 15992 KB n = 16
39 Correct 115 ms 16024 KB n = 16
40 Correct 15 ms 16000 KB n = 9
41 Correct 116 ms 16000 KB n = 16
42 Correct 111 ms 16000 KB n = 16
43 Correct 130 ms 16000 KB n = 16
44 Correct 19 ms 16000 KB n = 9
45 Correct 72 ms 16120 KB n = 15
46 Correct 127 ms 16000 KB n = 16
47 Correct 164 ms 16120 KB n = 16
48 Correct 148 ms 16044 KB n = 16

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 7288 KB n = 199999
2 Incorrect 80 ms 7288 KB answer is not correct: 0 instead of 1
3 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16000 KB n = 2
2 Correct 15 ms 16000 KB n = 2
3 Correct 16 ms 16000 KB n = 2
4 Correct 16 ms 16000 KB n = 2
5 Correct 15 ms 16000 KB n = 2
6 Correct 15 ms 16000 KB n = 2
7 Correct 15 ms 16000 KB n = 3
8 Correct 14 ms 16000 KB n = 3
9 Correct 18 ms 16000 KB n = 3
10 Correct 18 ms 16000 KB n = 8
11 Correct 16 ms 16000 KB n = 8
12 Correct 18 ms 16000 KB n = 8
13 Correct 16 ms 16000 KB n = 8
14 Correct 15 ms 16000 KB n = 8
15 Correct 18 ms 16000 KB n = 8
16 Correct 17 ms 16000 KB n = 8
17 Correct 16 ms 16000 KB n = 8
18 Correct 16 ms 16000 KB n = 8
19 Correct 14 ms 16000 KB n = 3
20 Correct 15 ms 16000 KB n = 7
21 Correct 15 ms 16000 KB n = 8
22 Correct 16 ms 16000 KB n = 8
23 Correct 16 ms 16000 KB n = 8
24 Correct 18 ms 16000 KB n = 8
25 Correct 19 ms 16000 KB n = 8
26 Correct 18 ms 16000 KB n = 8
27 Correct 16 ms 16128 KB n = 8
28 Correct 16 ms 16000 KB n = 8
29 Correct 135 ms 16092 KB n = 16
30 Correct 161 ms 16016 KB n = 16
31 Correct 166 ms 16000 KB n = 16
32 Correct 166 ms 16000 KB n = 16
33 Correct 152 ms 16000 KB n = 16
34 Correct 162 ms 16000 KB n = 16
35 Correct 143 ms 16000 KB n = 16
36 Correct 49 ms 16000 KB n = 15
37 Correct 15 ms 16000 KB n = 8
38 Correct 159 ms 15992 KB n = 16
39 Correct 115 ms 16024 KB n = 16
40 Correct 15 ms 16000 KB n = 9
41 Correct 116 ms 16000 KB n = 16
42 Correct 111 ms 16000 KB n = 16
43 Correct 130 ms 16000 KB n = 16
44 Correct 19 ms 16000 KB n = 9
45 Correct 72 ms 16120 KB n = 15
46 Correct 127 ms 16000 KB n = 16
47 Correct 164 ms 16120 KB n = 16
48 Correct 148 ms 16044 KB n = 16
49 Correct 85 ms 7288 KB n = 199999
50 Incorrect 80 ms 7288 KB answer is not correct: 0 instead of 1
51 Halted 0 ms 0 KB -