oj.uz

Submission #869450

# Submission time Handle Problem Language Result Execution time Memory
869450 2023-11-04T11:32:33 Z AndreiBOTO Toll (BOI17_toll) C++14
100 / 100
 126 ms 19828 KB 
#include <bits/stdc++.h>

#pragma optimize GCC ("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

///#include <tryhardmode>
///#include <GODMODE::ON>

using namespace std;

const int NMAX=5e4+5;
const int INF=1e9;
const int KMAX=6;

vector<pair<int,int>>v[NMAX];

int dpst[NMAX][KMAX][KMAX];
int dpdr[NMAX][KMAX][KMAX];
int rez[NMAX];

int n,k;

struct elem{
    int st;
    int dr;
    int ind;
};
vector<elem>query[NMAX];

void divide(int st,int dr)
{
    int i,j;
    if(st==dr)
    {
        for(auto i:query[st])
            if(i.dr/k==st && i.st==i.dr)
                rez[i.ind]=0;
        return ;
    }
    else
    {
        int mij=st+dr;
        mij/=2;
        divide(st,mij);
        divide(mij+1,dr);
        for(int bucket=st;bucket<=mij;bucket++)
            for(i=0;i<k;i++)
                for(j=0;j<k;j++)
                    dpst[bucket][i][j]=INF;
        for(int bucket=dr;bucket>=mij;bucket--)
            for(i=0;i<k;i++)
                for(j=0;j<k;j++)
                    dpdr[bucket][i][j]=INF;
        for(i=0;i<k;i++)
            dpst[mij][i][i]=dpdr[mij][i][i]=0;
        ///dpst-> mij....st
        ///dpdr-> mij....dr
        for(int bucket=mij;bucket<dr;bucket++)
        {
            for(i=0;i<k;i++)
                for(j=0;j<k;j++)
                    for(auto edge:v[bucket*k+j])
                    {
                        dpdr[bucket+1][i][edge.first%k]=min(dpdr[bucket+1][i][edge.first%k],
                        dpdr[bucket][i][j]+edge.second);
                    }
        }
        for(int bucket=mij-1;bucket>=st;bucket--)
        {
            for(i=0;i<k;i++)
                for(j=0;j<k;j++)
                    for(auto edge:v[bucket*k+j])
                    {
                        dpst[bucket][i][j]=min(dpst[bucket][i][j],
                        dpst[bucket+1][i][edge.first%k]+edge.second);
                    }
        }
        for(i=st;i<=mij;i++)
            for(auto j:query[i])
                if(j.dr/k<=dr && j.dr/k>mij)
                    for(int lup=0;lup<k;lup++)
                        rez[j.ind]=min(rez[j.ind],dpst[i][lup][j.st%k]+dpdr[j.dr/k][lup][j.dr%k]);
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int m,o,i,j;
    cin>>k>>n>>m>>o;
    for(i=1;i<=m;i++)
    {
        int x,y,c;
        cin>>x>>y>>c;
        v[x].push_back(make_pair(y,c));
    }
    for(i=1;i<=o;i++)
    {
        int x,y;
        cin>>x>>y;
        query[x/k].push_back({x,y,i});
        rez[i]=INF;
    }
    divide(0,n/k);
    for(i=1;i<=o;i++)
        if(rez[i]==INF)
            cout<<-1<<"\n";
        else
            cout<<rez[i]<<"\n";
    return 0;
}

Compilation message

toll.cpp:3: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas]
    3 | #pragma optimize GCC ("Ofast")
      | 
toll.cpp: In function 'int main()':
toll.cpp:93:15: warning: unused variable 'j' [-Wunused-variable]
   93 |     int m,o,i,j;
      |               ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 19792 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 26 ms 19704 KB Output is correct
9 Correct 25 ms 19548 KB Output is correct
10 Correct 10 ms 17500 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 16388 KB Output is correct
2 Correct 1 ms 6744 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 4 ms 7152 KB Output is correct
8 Correct 4 ms 7196 KB Output is correct
9 Correct 25 ms 19776 KB Output is correct
10 Correct 70 ms 15896 KB Output is correct
11 Correct 46 ms 16492 KB Output is correct
12 Correct 42 ms 13928 KB Output is correct
13 Correct 90 ms 11860 KB Output is correct
14 Correct 44 ms 12080 KB Output is correct
15 Correct 46 ms 9308 KB Output is correct
16 Correct 47 ms 9308 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 2 ms 6844 KB Output is correct
8 Correct 3 ms 6748 KB Output is correct
9 Correct 2 ms 6896 KB Output is correct
10 Correct 24 ms 19460 KB Output is correct
11 Correct 41 ms 15800 KB Output is correct
12 Correct 68 ms 15308 KB Output is correct
13 Correct 78 ms 16432 KB Output is correct
14 Correct 57 ms 14676 KB Output is correct
15 Correct 45 ms 9296 KB Output is correct
16 Correct 45 ms 9308 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 2 ms 6844 KB Output is correct
8 Correct 3 ms 6748 KB Output is correct
9 Correct 2 ms 6896 KB Output is correct
10 Correct 24 ms 19460 KB Output is correct
11 Correct 41 ms 15800 KB Output is correct
12 Correct 68 ms 15308 KB Output is correct
13 Correct 78 ms 16432 KB Output is correct
14 Correct 57 ms 14676 KB Output is correct
15 Correct 45 ms 9296 KB Output is correct
16 Correct 45 ms 9308 KB Output is correct
17 Correct 43 ms 15952 KB Output is correct
18 Correct 1 ms 7000 KB Output is correct
19 Correct 1 ms 6748 KB Output is correct
20 Correct 1 ms 6832 KB Output is correct
21 Correct 1 ms 6748 KB Output is correct
22 Correct 1 ms 6748 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 7004 KB Output is correct
25 Correct 4 ms 6848 KB Output is correct
26 Correct 3 ms 7004 KB Output is correct
27 Correct 24 ms 19456 KB Output is correct
28 Correct 70 ms 15400 KB Output is correct
29 Correct 75 ms 15952 KB Output is correct
30 Correct 57 ms 14676 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 19792 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 26 ms 19704 KB Output is correct
9 Correct 25 ms 19548 KB Output is correct
10 Correct 10 ms 17500 KB Output is correct
11 Correct 43 ms 16388 KB Output is correct
12 Correct 1 ms 6744 KB Output is correct
13 Correct 1 ms 6748 KB Output is correct
14 Correct 1 ms 6748 KB Output is correct
15 Correct 1 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 4 ms 7152 KB Output is correct
18 Correct 4 ms 7196 KB Output is correct
19 Correct 25 ms 19776 KB Output is correct
20 Correct 70 ms 15896 KB Output is correct
21 Correct 46 ms 16492 KB Output is correct
22 Correct 42 ms 13928 KB Output is correct
23 Correct 90 ms 11860 KB Output is correct
24 Correct 44 ms 12080 KB Output is correct
25 Correct 46 ms 9308 KB Output is correct
26 Correct 47 ms 9308 KB Output is correct
27 Correct 2 ms 6748 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 1 ms 6748 KB Output is correct
30 Correct 1 ms 6748 KB Output is correct
31 Correct 1 ms 6748 KB Output is correct
32 Correct 1 ms 6748 KB Output is correct
33 Correct 2 ms 6844 KB Output is correct
34 Correct 3 ms 6748 KB Output is correct
35 Correct 2 ms 6896 KB Output is correct
36 Correct 24 ms 19460 KB Output is correct
37 Correct 41 ms 15800 KB Output is correct
38 Correct 68 ms 15308 KB Output is correct
39 Correct 78 ms 16432 KB Output is correct
40 Correct 57 ms 14676 KB Output is correct
41 Correct 45 ms 9296 KB Output is correct
42 Correct 45 ms 9308 KB Output is correct
43 Correct 43 ms 15952 KB Output is correct
44 Correct 1 ms 7000 KB Output is correct
45 Correct 1 ms 6748 KB Output is correct
46 Correct 1 ms 6832 KB Output is correct
47 Correct 1 ms 6748 KB Output is correct
48 Correct 1 ms 6748 KB Output is correct
49 Correct 2 ms 6748 KB Output is correct
50 Correct 2 ms 7004 KB Output is correct
51 Correct 4 ms 6848 KB Output is correct
52 Correct 3 ms 7004 KB Output is correct
53 Correct 24 ms 19456 KB Output is correct
54 Correct 70 ms 15400 KB Output is correct
55 Correct 75 ms 15952 KB Output is correct
56 Correct 57 ms 14676 KB Output is correct
57 Correct 126 ms 14928 KB Output is correct
58 Correct 25 ms 19828 KB Output is correct
59 Correct 46 ms 16468 KB Output is correct