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Submission #425983

# Submission time Handle Problem Language Result Execution time Memory
425983 2021-06-13T12:43:46 Z ivan24 Roller Coaster Railroad (IOI16_railroad) C++14
34 / 100
 62 ms 11112 KB 
#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long int;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
const ll INF = 1e18;

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
    vvi dp;
    dp.assign((1 << n),vi(n,INF));

    for (ll bm = 1; (1 << n) > bm; bm++){
        for (ll lst = 0; n > lst; lst++){
            if (((1 << lst) & bm) == 0) continue;
            if ((bm & -bm) == bm){
                dp[bm][lst] = 0;
            }else{
                dp[bm][lst] = INF;
                ll prvbm = bm - (1 << lst);
                for (ll prv = 0; n > prv; prv++){
                    if (prvbm & (1 << prv) == 0) continue;
                    dp[bm][lst] = min(dp[bm][lst],dp[prvbm][prv]+max(0,t[prv]-s[lst]));
                }
                //cout << bm << ' ' << lst << ": ";
                //cout << dp[bm][lst] << endl;
            }

        }
    }
    ll ans = INF;
    for (ll i = 0; n > i; i++){
        ans = min(ans,dp[(1 << n)-1][i]);
    }
    return ans;
}

Compilation message

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:26:44: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   26 |                     if (prvbm & (1 << prv) == 0) continue;
      |                                 ~~~~~~~~~~~^~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n = 2
2 Correct 1 ms 204 KB n = 2
3 Correct 1 ms 292 KB n = 2
4 Correct 1 ms 204 KB n = 2
5 Correct 1 ms 204 KB n = 2
6 Correct 1 ms 204 KB n = 2
7 Correct 1 ms 204 KB n = 3
8 Correct 1 ms 204 KB n = 3
9 Correct 1 ms 288 KB n = 3
10 Correct 1 ms 332 KB n = 8
11 Correct 1 ms 204 KB n = 8
12 Correct 1 ms 292 KB n = 8
13 Correct 1 ms 332 KB n = 8
14 Correct 1 ms 288 KB n = 8
15 Correct 1 ms 204 KB n = 8
16 Correct 1 ms 204 KB n = 8
17 Correct 1 ms 204 KB n = 8
18 Correct 1 ms 204 KB n = 8
19 Correct 1 ms 204 KB n = 3
20 Correct 1 ms 204 KB n = 7
21 Correct 1 ms 204 KB n = 8
22 Correct 1 ms 204 KB n = 8
23 Correct 1 ms 204 KB n = 8
24 Correct 1 ms 288 KB n = 8
25 Correct 1 ms 204 KB n = 8

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n = 2
2 Correct 1 ms 204 KB n = 2
3 Correct 1 ms 292 KB n = 2
4 Correct 1 ms 204 KB n = 2
5 Correct 1 ms 204 KB n = 2
6 Correct 1 ms 204 KB n = 2
7 Correct 1 ms 204 KB n = 3
8 Correct 1 ms 204 KB n = 3
9 Correct 1 ms 288 KB n = 3
10 Correct 1 ms 332 KB n = 8
11 Correct 1 ms 204 KB n = 8
12 Correct 1 ms 292 KB n = 8
13 Correct 1 ms 332 KB n = 8
14 Correct 1 ms 288 KB n = 8
15 Correct 1 ms 204 KB n = 8
16 Correct 1 ms 204 KB n = 8
17 Correct 1 ms 204 KB n = 8
18 Correct 1 ms 204 KB n = 8
19 Correct 1 ms 204 KB n = 3
20 Correct 1 ms 204 KB n = 7
21 Correct 1 ms 204 KB n = 8
22 Correct 1 ms 204 KB n = 8
23 Correct 1 ms 204 KB n = 8
24 Correct 1 ms 288 KB n = 8
25 Correct 1 ms 204 KB n = 8
26 Correct 1 ms 204 KB n = 8
27 Correct 1 ms 204 KB n = 8
28 Correct 1 ms 288 KB n = 8
29 Correct 55 ms 11044 KB n = 16
30 Correct 47 ms 11068 KB n = 16
31 Correct 45 ms 10956 KB n = 16
32 Correct 44 ms 10956 KB n = 16
33 Correct 45 ms 11024 KB n = 16
34 Correct 46 ms 11064 KB n = 16
35 Correct 44 ms 11112 KB n = 16
36 Correct 20 ms 5068 KB n = 15
37 Correct 1 ms 204 KB n = 8
38 Correct 47 ms 11028 KB n = 16
39 Correct 52 ms 11068 KB n = 16
40 Correct 1 ms 332 KB n = 9
41 Correct 45 ms 10956 KB n = 16
42 Correct 48 ms 11036 KB n = 16
43 Correct 58 ms 11056 KB n = 16
44 Correct 1 ms 332 KB n = 9
45 Correct 21 ms 5156 KB n = 15
46 Correct 43 ms 10956 KB n = 16
47 Correct 45 ms 11032 KB n = 16
48 Correct 45 ms 10956 KB n = 16

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 62 ms 10568 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n = 2
2 Correct 1 ms 204 KB n = 2
3 Correct 1 ms 292 KB n = 2
4 Correct 1 ms 204 KB n = 2
5 Correct 1 ms 204 KB n = 2
6 Correct 1 ms 204 KB n = 2
7 Correct 1 ms 204 KB n = 3
8 Correct 1 ms 204 KB n = 3
9 Correct 1 ms 288 KB n = 3
10 Correct 1 ms 332 KB n = 8
11 Correct 1 ms 204 KB n = 8
12 Correct 1 ms 292 KB n = 8
13 Correct 1 ms 332 KB n = 8
14 Correct 1 ms 288 KB n = 8
15 Correct 1 ms 204 KB n = 8
16 Correct 1 ms 204 KB n = 8
17 Correct 1 ms 204 KB n = 8
18 Correct 1 ms 204 KB n = 8
19 Correct 1 ms 204 KB n = 3
20 Correct 1 ms 204 KB n = 7
21 Correct 1 ms 204 KB n = 8
22 Correct 1 ms 204 KB n = 8
23 Correct 1 ms 204 KB n = 8
24 Correct 1 ms 288 KB n = 8
25 Correct 1 ms 204 KB n = 8
26 Correct 1 ms 204 KB n = 8
27 Correct 1 ms 204 KB n = 8
28 Correct 1 ms 288 KB n = 8
29 Correct 55 ms 11044 KB n = 16
30 Correct 47 ms 11068 KB n = 16
31 Correct 45 ms 10956 KB n = 16
32 Correct 44 ms 10956 KB n = 16
33 Correct 45 ms 11024 KB n = 16
34 Correct 46 ms 11064 KB n = 16
35 Correct 44 ms 11112 KB n = 16
36 Correct 20 ms 5068 KB n = 15
37 Correct 1 ms 204 KB n = 8
38 Correct 47 ms 11028 KB n = 16
39 Correct 52 ms 11068 KB n = 16
40 Correct 1 ms 332 KB n = 9
41 Correct 45 ms 10956 KB n = 16
42 Correct 48 ms 11036 KB n = 16
43 Correct 58 ms 11056 KB n = 16
44 Correct 1 ms 332 KB n = 9
45 Correct 21 ms 5156 KB n = 15
46 Correct 43 ms 10956 KB n = 16
47 Correct 45 ms 11032 KB n = 16
48 Correct 45 ms 10956 KB n = 16
49 Runtime error 62 ms 10568 KB Execution killed with signal 6
50 Halted 0 ms 0 KB -