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Submission #856541

# Submission time Handle Problem Language Result Execution time Memory
856541 2023-10-03T20:32:58 Z anton Toll (BOI17_toll) C++17
100 / 100
 172 ms 197076 KB 
#include<bits/stdc++.h>

using namespace std;
#define int long long

const int INF = 1e18;
const int MAX_K = 10;
int K;

struct M{
    int dist[MAX_K][MAX_K];
    M(){
        for(int i = 0; i<K; i++){
            for(int j = 0; j<K; j++){
                dist[i][j] = INF;
            }
        }
    }

    void sh(){
        /*for(int i = 0; i<K; i++){
            for(int j=0; j<K; j++){
                cout<<dist[i][j]<<" ";
            }
            cout<<endl;
        }

        cout<<endl;*/
    }
};

M e(){
    M res;

    for(int i= 0; i<K; i++){
        for(int j = 0; j<K; j++){
            if(i==j){
                res.dist[i][j] = 0;
            }
            else{
                res.dist[i][j] = INF;
            }
        }
    }
    return res;
}

M combine(M& lh, M&rh){
    M res;
    for(int mid=  0; mid<K; mid++){
        for(int a = 0; a<K; a++){
            for(int b = 0; b<K; b++){
                res.dist[a][b] = min(res.dist[a][b], lh.dist[a][mid] + rh.dist[mid][b]);
            }
        }
    }
    return res;
}

struct Tree{
    vector<M> tree;

    void build(vector<M>& v, int lt, int rt, int t){
        if(lt == rt){
            tree[t] = v[lt];
        }
        else{
            int mid = (lt+rt)/2;
            build(v, lt, mid, t*2);
            build(v, mid+1, rt, t*2+1);
            tree[t] = combine(tree[t*2], tree[t*2+1]);
        }
        //cout<<"lt "<<lt<<" rt "<<rt<<endl;
        tree[t].sh();
    }

    M get(int l, int r, int lt, int rt, int t){
        if(r<lt || rt<l){
            return e();
        }
        else if(l<=lt && rt<=r){
            return tree[t];
        }
        else{
            int mid = (lt+rt)/2;

            M lh = get(l, r, lt, mid, t*2);
            M rh = get(l, r, mid+1, rt, t*2+1);
            return combine(lh, rh);
        }
    }

    void sh(){
        
    }
};

signed main(){
    int n, m, o;

    cin>>K>>n>>m>>o;

    int l = (n+K-2)/K;

    vector<M> v(l);

    for(int i = 0; i<m; i++){
        int a,b, t;
        cin>>a>>b>>t;

        //cout<<"a is "<<a<<endl;
        v[a/K].dist[a%K][b%K] = t;
    }

    Tree tr;
    tr.tree.resize(4*l +1);
    tr.build(v, 0, l-1, 1);

    tr.sh();


    for(int i = 0; i<o; i++){
        int a, b;
        cin>>a>>b;

        int res = tr.get(a/K, (b/K)-1, 0, l-1, 1).dist[a%K][b%K];
        if(res==INF){
            cout<<-1<<endl;
        }
        else{
            cout<<res<<endl;
        }
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 97 ms 197004 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 4 ms 4188 KB Output is correct
6 Correct 4 ms 4188 KB Output is correct
7 Correct 5 ms 4188 KB Output is correct
8 Correct 99 ms 197076 KB Output is correct
9 Correct 96 ms 196948 KB Output is correct
10 Correct 66 ms 196292 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 99920 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 22 ms 4444 KB Output is correct
8 Correct 22 ms 2544 KB Output is correct
9 Correct 85 ms 196904 KB Output is correct
10 Correct 114 ms 67984 KB Output is correct
11 Correct 103 ms 100368 KB Output is correct
12 Correct 81 ms 66980 KB Output is correct
13 Correct 97 ms 26352 KB Output is correct
14 Correct 64 ms 41036 KB Output is correct
15 Correct 58 ms 24960 KB Output is correct
16 Correct 58 ms 25012 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 4188 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 3 ms 1116 KB Output is correct
9 Correct 3 ms 1372 KB Output is correct
10 Correct 60 ms 196948 KB Output is correct
11 Correct 68 ms 99720 KB Output is correct
12 Correct 88 ms 67748 KB Output is correct
13 Correct 95 ms 67924 KB Output is correct
14 Correct 76 ms 67492 KB Output is correct
15 Correct 46 ms 24912 KB Output is correct
16 Correct 47 ms 24996 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 4188 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 3 ms 1116 KB Output is correct
9 Correct 3 ms 1372 KB Output is correct
10 Correct 60 ms 196948 KB Output is correct
11 Correct 68 ms 99720 KB Output is correct
12 Correct 88 ms 67748 KB Output is correct
13 Correct 95 ms 67924 KB Output is correct
14 Correct 76 ms 67492 KB Output is correct
15 Correct 46 ms 24912 KB Output is correct
16 Correct 47 ms 24996 KB Output is correct
17 Correct 82 ms 100120 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 9 ms 4436 KB Output is correct
24 Correct 9 ms 2396 KB Output is correct
25 Correct 14 ms 1352 KB Output is correct
26 Correct 12 ms 1372 KB Output is correct
27 Correct 69 ms 196880 KB Output is correct
28 Correct 97 ms 67868 KB Output is correct
29 Correct 106 ms 68112 KB Output is correct
30 Correct 85 ms 67472 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 97 ms 197004 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 4 ms 4188 KB Output is correct
6 Correct 4 ms 4188 KB Output is correct
7 Correct 5 ms 4188 KB Output is correct
8 Correct 99 ms 197076 KB Output is correct
9 Correct 96 ms 196948 KB Output is correct
10 Correct 66 ms 196292 KB Output is correct
11 Correct 94 ms 99920 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 22 ms 4444 KB Output is correct
18 Correct 22 ms 2544 KB Output is correct
19 Correct 85 ms 196904 KB Output is correct
20 Correct 114 ms 67984 KB Output is correct
21 Correct 103 ms 100368 KB Output is correct
22 Correct 81 ms 66980 KB Output is correct
23 Correct 97 ms 26352 KB Output is correct
24 Correct 64 ms 41036 KB Output is correct
25 Correct 58 ms 24960 KB Output is correct
26 Correct 58 ms 25012 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 2 ms 4188 KB Output is correct
33 Correct 2 ms 2396 KB Output is correct
34 Correct 3 ms 1116 KB Output is correct
35 Correct 3 ms 1372 KB Output is correct
36 Correct 60 ms 196948 KB Output is correct
37 Correct 68 ms 99720 KB Output is correct
38 Correct 88 ms 67748 KB Output is correct
39 Correct 95 ms 67924 KB Output is correct
40 Correct 76 ms 67492 KB Output is correct
41 Correct 46 ms 24912 KB Output is correct
42 Correct 47 ms 24996 KB Output is correct
43 Correct 82 ms 100120 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 9 ms 4436 KB Output is correct
50 Correct 9 ms 2396 KB Output is correct
51 Correct 14 ms 1352 KB Output is correct
52 Correct 12 ms 1372 KB Output is correct
53 Correct 69 ms 196880 KB Output is correct
54 Correct 97 ms 67868 KB Output is correct
55 Correct 106 ms 68112 KB Output is correct
56 Correct 85 ms 67472 KB Output is correct
57 Correct 172 ms 52704 KB Output is correct
58 Correct 96 ms 196948 KB Output is correct
59 Correct 119 ms 100108 KB Output is correct