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Submission #648761

# Submission time Handle Problem Language Result Execution time Memory
648761 2022-10-08T03:54:42 Z PoonYaPat Toll (BOI17_toll) C++14
100 / 100
 138 ms 86852 KB 
#include <bits/stdc++.h>
using namespace std;

int k,n,m,q;
int dis[50001][17][5][5]; //(a,b,x,y) : from ak+x to (a+(1<<b))k+y

void merge(int ans[5][5], int a[5][5], int b[5][5]) {
    for (int i=0; i<k; ++i) {
        for (int j=0; j<k; ++j) {
            //find ans[i][j]
            for (int z=0; z<k; ++z) {
                ans[i][j]=min(ans[i][j],a[i][z]+b[z][j]);
            }
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>k>>n>>m>>q;
    memset(dis,0x3f,sizeof(dis));

    for (int i=0; i<m; ++i) {
        int a,b,w;
        cin>>a>>b>>w;
        dis[a/k][0][a%k][b%k]=w;
    }

    for (int i=1; i<17; ++i) {
        for (int j=0; j+(1<<i)<=n/k; ++j) {
            merge(dis[j][i],dis[j][i-1],dis[j+(1<<(i-1))][i-1]);
        }
    }

    while (q--) {
        int x,y; cin>>x>>y;
        int group=x/k;
        //from x/k to y/k

        int ans[5][5],temp[5][5];
        memset(ans,0x3f,sizeof(ans));
        for (int i=0; i<k; ++i) ans[i][i]=0;

        for (int i=16; i>=0; --i) {
            if (group+(1<<i)<=y/k) {
                memset(temp,0x3f,sizeof(temp));
                merge(temp,ans,dis[group][i]);
                swap(ans,temp);
                group+=(1<<i);
            }
        }
        if (ans[x%k][y%k]==0x3f3f3f3f) cout<<-1<<"\n";
        else cout<<ans[x%k][y%k]<<"\n";
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 83476 KB Output is correct
2 Correct 32 ms 83416 KB Output is correct
3 Correct 32 ms 83404 KB Output is correct
4 Correct 32 ms 83404 KB Output is correct
5 Correct 34 ms 83412 KB Output is correct
6 Correct 39 ms 83404 KB Output is correct
7 Correct 41 ms 83408 KB Output is correct
8 Correct 82 ms 84420 KB Output is correct
9 Correct 78 ms 84372 KB Output is correct
10 Correct 60 ms 83528 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 83488 KB Output is correct
2 Correct 35 ms 83432 KB Output is correct
3 Correct 34 ms 83404 KB Output is correct
4 Correct 33 ms 83400 KB Output is correct
5 Correct 34 ms 83432 KB Output is correct
6 Correct 34 ms 83408 KB Output is correct
7 Correct 39 ms 83532 KB Output is correct
8 Correct 44 ms 83540 KB Output is correct
9 Correct 86 ms 84348 KB Output is correct
10 Correct 122 ms 85808 KB Output is correct
11 Correct 96 ms 85256 KB Output is correct
12 Correct 89 ms 84680 KB Output is correct
13 Correct 90 ms 85764 KB Output is correct
14 Correct 74 ms 84868 KB Output is correct
15 Correct 69 ms 84600 KB Output is correct
16 Correct 75 ms 84672 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 83404 KB Output is correct
2 Correct 34 ms 83444 KB Output is correct
3 Correct 36 ms 83404 KB Output is correct
4 Correct 34 ms 83400 KB Output is correct
5 Correct 34 ms 83452 KB Output is correct
6 Correct 37 ms 83460 KB Output is correct
7 Correct 35 ms 83492 KB Output is correct
8 Correct 34 ms 83476 KB Output is correct
9 Correct 34 ms 83504 KB Output is correct
10 Correct 65 ms 84244 KB Output is correct
11 Correct 82 ms 85000 KB Output is correct
12 Correct 94 ms 85632 KB Output is correct
13 Correct 98 ms 85868 KB Output is correct
14 Correct 92 ms 85248 KB Output is correct
15 Correct 73 ms 84596 KB Output is correct
16 Correct 65 ms 84556 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 83404 KB Output is correct
2 Correct 34 ms 83444 KB Output is correct
3 Correct 36 ms 83404 KB Output is correct
4 Correct 34 ms 83400 KB Output is correct
5 Correct 34 ms 83452 KB Output is correct
6 Correct 37 ms 83460 KB Output is correct
7 Correct 35 ms 83492 KB Output is correct
8 Correct 34 ms 83476 KB Output is correct
9 Correct 34 ms 83504 KB Output is correct
10 Correct 65 ms 84244 KB Output is correct
11 Correct 82 ms 85000 KB Output is correct
12 Correct 94 ms 85632 KB Output is correct
13 Correct 98 ms 85868 KB Output is correct
14 Correct 92 ms 85248 KB Output is correct
15 Correct 73 ms 84596 KB Output is correct
16 Correct 65 ms 84556 KB Output is correct
17 Correct 90 ms 85036 KB Output is correct
18 Correct 35 ms 83372 KB Output is correct
19 Correct 33 ms 83608 KB Output is correct
20 Correct 33 ms 83448 KB Output is correct
21 Correct 33 ms 83404 KB Output is correct
22 Correct 34 ms 83408 KB Output is correct
23 Correct 44 ms 83436 KB Output is correct
24 Correct 45 ms 83532 KB Output is correct
25 Correct 42 ms 83532 KB Output is correct
26 Correct 39 ms 83496 KB Output is correct
27 Correct 67 ms 84228 KB Output is correct
28 Correct 100 ms 85708 KB Output is correct
29 Correct 112 ms 85836 KB Output is correct
30 Correct 97 ms 85244 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 83476 KB Output is correct
2 Correct 32 ms 83416 KB Output is correct
3 Correct 32 ms 83404 KB Output is correct
4 Correct 32 ms 83404 KB Output is correct
5 Correct 34 ms 83412 KB Output is correct
6 Correct 39 ms 83404 KB Output is correct
7 Correct 41 ms 83408 KB Output is correct
8 Correct 82 ms 84420 KB Output is correct
9 Correct 78 ms 84372 KB Output is correct
10 Correct 60 ms 83528 KB Output is correct
11 Correct 92 ms 83488 KB Output is correct
12 Correct 35 ms 83432 KB Output is correct
13 Correct 34 ms 83404 KB Output is correct
14 Correct 33 ms 83400 KB Output is correct
15 Correct 34 ms 83432 KB Output is correct
16 Correct 34 ms 83408 KB Output is correct
17 Correct 39 ms 83532 KB Output is correct
18 Correct 44 ms 83540 KB Output is correct
19 Correct 86 ms 84348 KB Output is correct
20 Correct 122 ms 85808 KB Output is correct
21 Correct 96 ms 85256 KB Output is correct
22 Correct 89 ms 84680 KB Output is correct
23 Correct 90 ms 85764 KB Output is correct
24 Correct 74 ms 84868 KB Output is correct
25 Correct 69 ms 84600 KB Output is correct
26 Correct 75 ms 84672 KB Output is correct
27 Correct 33 ms 83404 KB Output is correct
28 Correct 34 ms 83444 KB Output is correct
29 Correct 36 ms 83404 KB Output is correct
30 Correct 34 ms 83400 KB Output is correct
31 Correct 34 ms 83452 KB Output is correct
32 Correct 37 ms 83460 KB Output is correct
33 Correct 35 ms 83492 KB Output is correct
34 Correct 34 ms 83476 KB Output is correct
35 Correct 34 ms 83504 KB Output is correct
36 Correct 65 ms 84244 KB Output is correct
37 Correct 82 ms 85000 KB Output is correct
38 Correct 94 ms 85632 KB Output is correct
39 Correct 98 ms 85868 KB Output is correct
40 Correct 92 ms 85248 KB Output is correct
41 Correct 73 ms 84596 KB Output is correct
42 Correct 65 ms 84556 KB Output is correct
43 Correct 90 ms 85036 KB Output is correct
44 Correct 35 ms 83372 KB Output is correct
45 Correct 33 ms 83608 KB Output is correct
46 Correct 33 ms 83448 KB Output is correct
47 Correct 33 ms 83404 KB Output is correct
48 Correct 34 ms 83408 KB Output is correct
49 Correct 44 ms 83436 KB Output is correct
50 Correct 45 ms 83532 KB Output is correct
51 Correct 42 ms 83532 KB Output is correct
52 Correct 39 ms 83496 KB Output is correct
53 Correct 67 ms 84228 KB Output is correct
54 Correct 100 ms 85708 KB Output is correct
55 Correct 112 ms 85836 KB Output is correct
56 Correct 97 ms 85244 KB Output is correct
57 Correct 138 ms 86852 KB Output is correct
58 Correct 78 ms 84308 KB Output is correct
59 Correct 106 ms 85252 KB Output is correct