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Submission #1063363

# Submission time Handle Problem Language Result Execution time Memory
1063363 2024-08-17T17:20:47 Z I_FloPPed21 Toll (BOI17_toll) C++14
100 / 100
 85 ms 86868 KB 
#include <bits/stdc++.h>
using namespace std;
int dp[50005][17][5][5],n,k,m,q,temp[5][5],ans[5][5];
void combine(int target[5][5],int a[5][5],int b[5][5])
{
    for(int x=0; x<k; x++)
        for(int y=0; y<k; y++)
        {
            for(int z=0; z<k; z++)
            {
                target[x][y]=min(target[x][y],a[x][z]+b[z][y]);
            }
        }
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>k>>n>>m>>q;
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<17; j++)
            for(int x=0; x<k; x++)
                for(int y=0; y<k; y++)
                    dp[i][j][x][y] =5e8+1;
    }
    for(int i=0; i < m; i++)
    {
        int a,b,c;
        cin>>a>>b>>c;
        dp[a/k][0][a%k][b%k]=c;
    }

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

    while(q--)
    {
        int a,b;
        cin>>a>>b;
        int curent=a/k;
        int dest=b/k;
        for(int i=0; i<k; i++)
            for(int j=0; j<k; j++)
            {
                ans[i][j] =5e8+1;
                temp[i][j] =5e8+1;
            }
        for(int i = 0 ; i <5; i++)
            ans[i][i] =0;
        for(int i =16; i>=0; i--)
        {
            if(curent+(1<<i) >dest)
                continue;
            combine(temp,ans,dp[curent][i]);
            for(int t=0; t<k; t++)
                for(int j=0; j<k; j++)
                {

                    ans[t][j]=temp[t][j];
                    temp[t][j] =5e8+1;
                }
            curent+=(1<<i);
        }

        if(ans[a%k][b%k]==5e8+1)
            cout<<-1<<'\n';
        else
            cout<<ans[a%k][b%k]<<'\n';
    }

    return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:39:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   39 |             combine(dp[j][i],dp[j][i-1],dp[j+(1<<i-1)][i-1]);
      |                                                  ~^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 84560 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2016 KB Output is correct
6 Correct 1 ms 2140 KB Output is correct
7 Correct 1 ms 2140 KB Output is correct
8 Correct 51 ms 84400 KB Output is correct
9 Correct 50 ms 84316 KB Output is correct
10 Correct 38 ms 83640 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 85268 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 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 3 ms 2216 KB Output is correct
8 Correct 4 ms 2140 KB Output is correct
9 Correct 49 ms 84484 KB Output is correct
10 Correct 77 ms 85840 KB Output is correct
11 Correct 64 ms 85336 KB Output is correct
12 Correct 67 ms 84816 KB Output is correct
13 Correct 59 ms 52560 KB Output is correct
14 Correct 40 ms 51792 KB Output is correct
15 Correct 45 ms 51540 KB Output is correct
16 Correct 45 ms 51560 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 2140 KB Output is correct
7 Correct 1 ms 2136 KB Output is correct
8 Correct 2 ms 2140 KB Output is correct
9 Correct 2 ms 2140 KB Output is correct
10 Correct 47 ms 84304 KB Output is correct
11 Correct 56 ms 85072 KB Output is correct
12 Correct 68 ms 85584 KB Output is correct
13 Correct 73 ms 85840 KB Output is correct
14 Correct 63 ms 85328 KB Output is correct
15 Correct 45 ms 51280 KB Output is correct
16 Correct 44 ms 51280 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 2140 KB Output is correct
7 Correct 1 ms 2136 KB Output is correct
8 Correct 2 ms 2140 KB Output is correct
9 Correct 2 ms 2140 KB Output is correct
10 Correct 47 ms 84304 KB Output is correct
11 Correct 56 ms 85072 KB Output is correct
12 Correct 68 ms 85584 KB Output is correct
13 Correct 73 ms 85840 KB Output is correct
14 Correct 63 ms 85328 KB Output is correct
15 Correct 45 ms 51280 KB Output is correct
16 Correct 44 ms 51280 KB Output is correct
17 Correct 59 ms 85008 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 2 ms 2008 KB Output is correct
24 Correct 2 ms 2140 KB Output is correct
25 Correct 4 ms 2140 KB Output is correct
26 Correct 3 ms 2188 KB Output is correct
27 Correct 47 ms 84444 KB Output is correct
28 Correct 67 ms 85592 KB Output is correct
29 Correct 71 ms 85892 KB Output is correct
30 Correct 68 ms 85332 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 84560 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2016 KB Output is correct
6 Correct 1 ms 2140 KB Output is correct
7 Correct 1 ms 2140 KB Output is correct
8 Correct 51 ms 84400 KB Output is correct
9 Correct 50 ms 84316 KB Output is correct
10 Correct 38 ms 83640 KB Output is correct
11 Correct 63 ms 85268 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 3 ms 2216 KB Output is correct
18 Correct 4 ms 2140 KB Output is correct
19 Correct 49 ms 84484 KB Output is correct
20 Correct 77 ms 85840 KB Output is correct
21 Correct 64 ms 85336 KB Output is correct
22 Correct 67 ms 84816 KB Output is correct
23 Correct 59 ms 52560 KB Output is correct
24 Correct 40 ms 51792 KB Output is correct
25 Correct 45 ms 51540 KB Output is correct
26 Correct 45 ms 51560 KB Output is correct
27 Correct 0 ms 344 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 1 ms 2140 KB Output is correct
33 Correct 1 ms 2136 KB Output is correct
34 Correct 2 ms 2140 KB Output is correct
35 Correct 2 ms 2140 KB Output is correct
36 Correct 47 ms 84304 KB Output is correct
37 Correct 56 ms 85072 KB Output is correct
38 Correct 68 ms 85584 KB Output is correct
39 Correct 73 ms 85840 KB Output is correct
40 Correct 63 ms 85328 KB Output is correct
41 Correct 45 ms 51280 KB Output is correct
42 Correct 44 ms 51280 KB Output is correct
43 Correct 59 ms 85008 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 2 ms 2008 KB Output is correct
50 Correct 2 ms 2140 KB Output is correct
51 Correct 4 ms 2140 KB Output is correct
52 Correct 3 ms 2188 KB Output is correct
53 Correct 47 ms 84444 KB Output is correct
54 Correct 67 ms 85592 KB Output is correct
55 Correct 71 ms 85892 KB Output is correct
56 Correct 68 ms 85332 KB Output is correct
57 Correct 82 ms 86868 KB Output is correct
58 Correct 52 ms 84524 KB Output is correct
59 Correct 85 ms 85376 KB Output is correct