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Submission #697121

# Submission time Handle Problem Language Result Execution time Memory
697121 2023-02-08T13:03:44 Z AmirElarbi Toll (BOI17_toll) C++14
100 / 100
 117 ms 82020 KB 
#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define pll pair<ll,ll>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e9
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 2e5+5
using namespace std;
const int MOD = 1e9+7;
const int nax = 5e4+5;
const int nax2 =  20;
typedef complex<int> Point;
using cd = complex<double>;
int k,n,m,o, dat[5][5][32][nax];
int ans[5][5],cnt[5][5];
void combine(int l, int lev){
    for(int i = 0; i < k; i++)
        for(int j = 0; j < k; j++){
            for (int z = 0; z < k; ++z)
            {
                dat[i][j][lev][l] = min(dat[i][j][lev][l], dat[i][z][lev-1][l] + dat[z][j][lev-1][l+(1 << (lev-1))]);        
            }
        }
}
int main()
{
    optimise;
    cin >> k >> n >> m >> o;
    for (int i = 0; i < k; ++i)
        for (int j = 0; j < k; ++j)
            for (int a = 0; a < 25; ++a)
                for(int b = 0; b < n; b++)
                    dat[i][j][a][b] = INF;

    for (int i = 0; i < m; ++i)
    {
        int a,b,c;
        cin >> a >> b >> c;
        dat[a % k][b % k][0][a / k] = c;
    }
    for (int i = 1; i < 25; ++i)
    {
        for (int j = 0; j + (1 << i) < (n+k-1)/k; ++j)
        {
            combine(j, i);
        }
    }
    while(o--){
        int a,b;
        cin >> a >> b;
        if(a == b) cout << 0 << endl;
        else if(a/k >= b/k) cout << -1 << endl;
        else {
            int cur = a/k;
            for(int i = 0; i < k; i++)
                for(int j = 0; j < k; j++)
                    if(i == j) ans[i][j] = 0; 
                    else ans[i][j] = INF; 
            for (int lvl = 20; lvl >= 0; --lvl)
            {
                if(cur + (1 << lvl) <= b/k){
                    for(int i = 0; i < k; i++)
                        for(int j = 0; j < k; j++)
                            cnt[i][j] = INF; 
                    for(int i = 0; i < k; i++)
                        for(int j = 0; j < k; j++){
                            for (int z = 0; z < k; ++z)
                            {
                                cnt[i][j] = min(cnt[i][j], ans[i][z] + dat[z][j][lvl][cur]);        
                            }
                        }
                    memcpy(ans, cnt, sizeof ans);
                    cur += (1 << lvl);
                }
            }
            if(ans[a%k][b%k] >= INF) cout << -1 << endl;
            else cout << ans[a%k][b%k]  << endl;
        }
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 5640 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 472 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 34 ms 6100 KB Output is correct
9 Correct 40 ms 6100 KB Output is correct
10 Correct 23 ms 5344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 20284 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 1236 KB Output is correct
5 Correct 1 ms 2004 KB Output is correct
6 Correct 2 ms 3028 KB Output is correct
7 Correct 15 ms 596 KB Output is correct
8 Correct 16 ms 1264 KB Output is correct
9 Correct 34 ms 6092 KB Output is correct
10 Correct 80 ms 46700 KB Output is correct
11 Correct 53 ms 21568 KB Output is correct
12 Correct 64 ms 45692 KB Output is correct
13 Correct 86 ms 78600 KB Output is correct
14 Correct 45 ms 29132 KB Output is correct
15 Correct 74 ms 77516 KB Output is correct
16 Correct 73 ms 77448 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 1236 KB Output is correct
4 Correct 1 ms 2004 KB Output is correct
5 Correct 1 ms 3028 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 2 ms 1196 KB Output is correct
8 Correct 4 ms 5608 KB Output is correct
9 Correct 3 ms 3668 KB Output is correct
10 Correct 21 ms 5972 KB Output is correct
11 Correct 37 ms 21428 KB Output is correct
12 Correct 60 ms 46560 KB Output is correct
13 Correct 66 ms 46816 KB Output is correct
14 Correct 54 ms 46096 KB Output is correct
15 Correct 61 ms 77480 KB Output is correct
16 Correct 68 ms 77388 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 1236 KB Output is correct
4 Correct 1 ms 2004 KB Output is correct
5 Correct 1 ms 3028 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 2 ms 1196 KB Output is correct
8 Correct 4 ms 5608 KB Output is correct
9 Correct 3 ms 3668 KB Output is correct
10 Correct 21 ms 5972 KB Output is correct
11 Correct 37 ms 21428 KB Output is correct
12 Correct 60 ms 46560 KB Output is correct
13 Correct 66 ms 46816 KB Output is correct
14 Correct 54 ms 46096 KB Output is correct
15 Correct 61 ms 77480 KB Output is correct
16 Correct 68 ms 77388 KB Output is correct
17 Correct 47 ms 21428 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 1228 KB Output is correct
21 Correct 1 ms 2132 KB Output is correct
22 Correct 2 ms 3028 KB Output is correct
23 Correct 5 ms 468 KB Output is correct
24 Correct 6 ms 1112 KB Output is correct
25 Correct 9 ms 5620 KB Output is correct
26 Correct 7 ms 3668 KB Output is correct
27 Correct 23 ms 5972 KB Output is correct
28 Correct 65 ms 46556 KB Output is correct
29 Correct 72 ms 46828 KB Output is correct
30 Correct 59 ms 46188 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 5640 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 472 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 34 ms 6100 KB Output is correct
9 Correct 40 ms 6100 KB Output is correct
10 Correct 23 ms 5344 KB Output is correct
11 Correct 51 ms 20284 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 1236 KB Output is correct
15 Correct 1 ms 2004 KB Output is correct
16 Correct 2 ms 3028 KB Output is correct
17 Correct 15 ms 596 KB Output is correct
18 Correct 16 ms 1264 KB Output is correct
19 Correct 34 ms 6092 KB Output is correct
20 Correct 80 ms 46700 KB Output is correct
21 Correct 53 ms 21568 KB Output is correct
22 Correct 64 ms 45692 KB Output is correct
23 Correct 86 ms 78600 KB Output is correct
24 Correct 45 ms 29132 KB Output is correct
25 Correct 74 ms 77516 KB Output is correct
26 Correct 73 ms 77448 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 724 KB Output is correct
29 Correct 1 ms 1236 KB Output is correct
30 Correct 1 ms 2004 KB Output is correct
31 Correct 1 ms 3028 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 2 ms 1196 KB Output is correct
34 Correct 4 ms 5608 KB Output is correct
35 Correct 3 ms 3668 KB Output is correct
36 Correct 21 ms 5972 KB Output is correct
37 Correct 37 ms 21428 KB Output is correct
38 Correct 60 ms 46560 KB Output is correct
39 Correct 66 ms 46816 KB Output is correct
40 Correct 54 ms 46096 KB Output is correct
41 Correct 61 ms 77480 KB Output is correct
42 Correct 68 ms 77388 KB Output is correct
43 Correct 47 ms 21428 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 1 ms 724 KB Output is correct
46 Correct 1 ms 1228 KB Output is correct
47 Correct 1 ms 2132 KB Output is correct
48 Correct 2 ms 3028 KB Output is correct
49 Correct 5 ms 468 KB Output is correct
50 Correct 6 ms 1112 KB Output is correct
51 Correct 9 ms 5620 KB Output is correct
52 Correct 7 ms 3668 KB Output is correct
53 Correct 23 ms 5972 KB Output is correct
54 Correct 65 ms 46556 KB Output is correct
55 Correct 72 ms 46828 KB Output is correct
56 Correct 59 ms 46188 KB Output is correct
57 Correct 117 ms 82020 KB Output is correct
58 Correct 33 ms 6144 KB Output is correct
59 Correct 57 ms 21684 KB Output is correct