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Submission #912326

# Submission time Handle Problem Language Result Execution time Memory
912326 2024-01-19T10:01:38 Z imarn Toll (BOI17_toll) C++14
100 / 100
 129 ms 170068 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
using namespace std;
ll dp[50001][17][5][5];int k;
void pre(int i,int j,int ii,int jj,int iii,int jjj){
    for(int x=0;x<k;x++){
        for(int y=0;y<k;y++){
            for(int z=0;z<k;z++){
                dp[i][j][x][y]=min(dp[i][j][x][y],dp[ii][jj][x][z]+dp[iii][jjj][z][y]);
            }
        }
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m,o;cin>>k>>n>>m>>o;
    for(int i=0;i<50001;i++)for(int j=0;j<17;j++)for(int t=0;t<5;t++)for(int l=0;l<5;l++)dp[i][j][t][l]=1e15;
    while(m--){
        int a,b,t;cin>>a>>b>>t;
        dp[a/k][0][a%k][b%k]=t;
    }
    for(int j=1;j<17;j++){
        for(int i=0;i<(n+k-1)/k;i++){
            if(i+(1<<(j-1))<50001)pre(i,j,i ,j-1,i+(1<<(j-1)),j-1);
        }
    }ll ans[5][5],tmp[5][5];
    while(o--){
        int a,b;cin>>a>>b;
        for(int x=0;x<k;x++)for(int y=0;y<k;y++)ans[x][y]=1e15;
        for(int i=0;i<k;i++)ans[i][i]=0;
        int cur=a/k,dest=b/k;
        for(int i=16;i>=0;i--){
            if(cur+(1<<i)<=dest){
                for(int x=0;x<k;x++)for(int y=0;y<k;y++)tmp[x][y]=1e15;
                for(int x=0;x<k;x++){
                for(int y=0;y<k;y++){
                    for(int z=0;z<k;z++){
                        tmp[x][y]=min(tmp[x][y],ans[x][z]+dp[cur][i][z][y]);
                    }
                }
                }for(int x=0;x<k;x++)for(int y=0;y<k;y++)ans[x][y]=tmp[x][y];
                cur+=(1<<i);
            }
        }cout<<(ans[a%k][b%k]==1e15?-1:ans[a%k][b%k])<<'\n';
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 166976 KB Output is correct
2 Correct 30 ms 166736 KB Output is correct
3 Correct 28 ms 166744 KB Output is correct
4 Correct 28 ms 166524 KB Output is correct
5 Correct 30 ms 166584 KB Output is correct
6 Correct 31 ms 166740 KB Output is correct
7 Correct 33 ms 166744 KB Output is correct
8 Correct 78 ms 166776 KB Output is correct
9 Correct 77 ms 166780 KB Output is correct
10 Correct 63 ms 166588 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 166736 KB Output is correct
2 Correct 39 ms 166740 KB Output is correct
3 Correct 31 ms 166740 KB Output is correct
4 Correct 31 ms 166780 KB Output is correct
5 Correct 31 ms 166572 KB Output is correct
6 Correct 31 ms 166684 KB Output is correct
7 Correct 34 ms 166860 KB Output is correct
8 Correct 37 ms 166880 KB Output is correct
9 Correct 71 ms 167508 KB Output is correct
10 Correct 128 ms 169048 KB Output is correct
11 Correct 100 ms 168532 KB Output is correct
12 Correct 104 ms 168060 KB Output is correct
13 Correct 89 ms 169076 KB Output is correct
14 Correct 81 ms 168044 KB Output is correct
15 Correct 78 ms 167788 KB Output is correct
16 Correct 68 ms 167980 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 166716 KB Output is correct
2 Correct 29 ms 166744 KB Output is correct
3 Correct 30 ms 166740 KB Output is correct
4 Correct 30 ms 166740 KB Output is correct
5 Correct 29 ms 166732 KB Output is correct
6 Correct 32 ms 166740 KB Output is correct
7 Correct 30 ms 166748 KB Output is correct
8 Correct 31 ms 166704 KB Output is correct
9 Correct 32 ms 166796 KB Output is correct
10 Correct 68 ms 167364 KB Output is correct
11 Correct 96 ms 168300 KB Output is correct
12 Correct 114 ms 168956 KB Output is correct
13 Correct 118 ms 169192 KB Output is correct
14 Correct 114 ms 168588 KB Output is correct
15 Correct 79 ms 167840 KB Output is correct
16 Correct 68 ms 167764 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 166716 KB Output is correct
2 Correct 29 ms 166744 KB Output is correct
3 Correct 30 ms 166740 KB Output is correct
4 Correct 30 ms 166740 KB Output is correct
5 Correct 29 ms 166732 KB Output is correct
6 Correct 32 ms 166740 KB Output is correct
7 Correct 30 ms 166748 KB Output is correct
8 Correct 31 ms 166704 KB Output is correct
9 Correct 32 ms 166796 KB Output is correct
10 Correct 68 ms 167364 KB Output is correct
11 Correct 96 ms 168300 KB Output is correct
12 Correct 114 ms 168956 KB Output is correct
13 Correct 118 ms 169192 KB Output is correct
14 Correct 114 ms 168588 KB Output is correct
15 Correct 79 ms 167840 KB Output is correct
16 Correct 68 ms 167764 KB Output is correct
17 Correct 98 ms 168340 KB Output is correct
18 Correct 31 ms 166692 KB Output is correct
19 Correct 30 ms 166740 KB Output is correct
20 Correct 30 ms 166740 KB Output is correct
21 Correct 30 ms 166740 KB Output is correct
22 Correct 29 ms 166740 KB Output is correct
23 Correct 31 ms 166740 KB Output is correct
24 Correct 31 ms 166748 KB Output is correct
25 Correct 34 ms 166740 KB Output is correct
26 Correct 32 ms 166808 KB Output is correct
27 Correct 67 ms 167508 KB Output is correct
28 Correct 126 ms 168992 KB Output is correct
29 Correct 123 ms 169428 KB Output is correct
30 Correct 92 ms 168532 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 166976 KB Output is correct
2 Correct 30 ms 166736 KB Output is correct
3 Correct 28 ms 166744 KB Output is correct
4 Correct 28 ms 166524 KB Output is correct
5 Correct 30 ms 166584 KB Output is correct
6 Correct 31 ms 166740 KB Output is correct
7 Correct 33 ms 166744 KB Output is correct
8 Correct 78 ms 166776 KB Output is correct
9 Correct 77 ms 166780 KB Output is correct
10 Correct 63 ms 166588 KB Output is correct
11 Correct 115 ms 166736 KB Output is correct
12 Correct 39 ms 166740 KB Output is correct
13 Correct 31 ms 166740 KB Output is correct
14 Correct 31 ms 166780 KB Output is correct
15 Correct 31 ms 166572 KB Output is correct
16 Correct 31 ms 166684 KB Output is correct
17 Correct 34 ms 166860 KB Output is correct
18 Correct 37 ms 166880 KB Output is correct
19 Correct 71 ms 167508 KB Output is correct
20 Correct 128 ms 169048 KB Output is correct
21 Correct 100 ms 168532 KB Output is correct
22 Correct 104 ms 168060 KB Output is correct
23 Correct 89 ms 169076 KB Output is correct
24 Correct 81 ms 168044 KB Output is correct
25 Correct 78 ms 167788 KB Output is correct
26 Correct 68 ms 167980 KB Output is correct
27 Correct 29 ms 166716 KB Output is correct
28 Correct 29 ms 166744 KB Output is correct
29 Correct 30 ms 166740 KB Output is correct
30 Correct 30 ms 166740 KB Output is correct
31 Correct 29 ms 166732 KB Output is correct
32 Correct 32 ms 166740 KB Output is correct
33 Correct 30 ms 166748 KB Output is correct
34 Correct 31 ms 166704 KB Output is correct
35 Correct 32 ms 166796 KB Output is correct
36 Correct 68 ms 167364 KB Output is correct
37 Correct 96 ms 168300 KB Output is correct
38 Correct 114 ms 168956 KB Output is correct
39 Correct 118 ms 169192 KB Output is correct
40 Correct 114 ms 168588 KB Output is correct
41 Correct 79 ms 167840 KB Output is correct
42 Correct 68 ms 167764 KB Output is correct
43 Correct 98 ms 168340 KB Output is correct
44 Correct 31 ms 166692 KB Output is correct
45 Correct 30 ms 166740 KB Output is correct
46 Correct 30 ms 166740 KB Output is correct
47 Correct 30 ms 166740 KB Output is correct
48 Correct 29 ms 166740 KB Output is correct
49 Correct 31 ms 166740 KB Output is correct
50 Correct 31 ms 166748 KB Output is correct
51 Correct 34 ms 166740 KB Output is correct
52 Correct 32 ms 166808 KB Output is correct
53 Correct 67 ms 167508 KB Output is correct
54 Correct 126 ms 168992 KB Output is correct
55 Correct 123 ms 169428 KB Output is correct
56 Correct 92 ms 168532 KB Output is correct
57 Correct 114 ms 170068 KB Output is correct
58 Correct 72 ms 167508 KB Output is correct
59 Correct 129 ms 168532 KB Output is correct