oj.uz

Submission #979343

# Submission time Handle Problem Language Result Execution time Memory
979343 2024-05-10T16:48:58 Z lftroq Toll (BOI17_toll) C++14
100 / 100
 79 ms 84820 KB 
/*

                                             :-=-
                                        :%@@@@@@@@@=
                                     .#@@@@@%@%@@@@@@=
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                                .*@@@@@@@@@@@@@@@@@@@@@@@=        ／￣￣￣￣￣￣￣￣￣＼
                                .@@@@@@@@@@@@@@@@@@@@@@@@#       |      lftroq ♥      |
                                +@@@@@@@@@@@%%@@@@@@@@@@@@-       ＼＿＿＿＿＿＿＿＿＿／
                               .%@@@@@@@@@@%##%@@@@@@@@@@@#        /／
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                            +=*%@@@#*###%%#=--+=+*##%@@@@@@%.
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                      .%@@%***###@@@%*++%%%#*===+=++++%@@@@%*=-----=.
                      =**##+=+##@@@@=+%+=***#%@#+**++++%@@%+=-------=:
                    .++===++====@@@@+--==-=#%%%%+++*++++#%+=------==+=.
                   -++--=++-:::::=#@#----+--*%%*+**+++++++==-----===--+=
                   :*+=--++-::::::--=-----==-=%==+%%***++=---=---===-=++:
                    :*+--+=-::::::::---:----+=-=++##***===-::::-+----=*+:
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                    :==--:::.:=+++++++++++++++++++++-::===-:-===-----=--:
                    .+=--:::-:=+++++==++++++++++++++=--:.:-===+-------+=-.
                     .+==-----::-+++-:+++=====+++++++=--=======--:----==+=.
                     :+===-----------:-++====+++++++++=--==--+-:------==-::
                      +=====-::----+-::-+====+++++++++++=---==:-===:-==-==.
                      :+===========+-::::-----+++++++++++*=--======-=+=-=.
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                          .=========-::::::-----:::=+++++**+=+**====-:.   .
                             *======-::::::::-:-----++++++++==++++++-
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                             :===-:--:::::::::::-------+++++++===++=++
                             .===-:--:::::::::::::-----=+++++====++===.
                             .+=-::--::::::::::::-:-----++++++====++=+:
                             .=-:::--::::::::::::-------=+++++===-----+=
                             .=-:::--:::::::::::---------=++++==-----==+=.
                             .=-:::---:::::::::::---------+++===-----===++.
                             .=::::---:::::::-:-----------=++==-:-----===+-
                             .--:::---:::::::--------------=+=----==--===+-
                             .=::::---::::::::::-------===--==-------=--==:
                             .=--::--::::----:---:::::-:----:::-----======-
                             .=---:--:::---::::::--------------------==++++
*/
#include <bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MOD 1000000007ll
#define MOD2 998244353ll
#define endl '\n'
#define PI acos(-1)
#define INFINITE 1000000000
#define INFINITE2 1000000000000000000ll
#define llll pair<ll,ll>
#define ldld pair<ld,ld>
#define fi first
#define se second
#define sqrt sqrtl
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

using namespace std;

int k,n,m,q;
int dp[17][50005][5][5],cost[50005][5][5],mask[50005];

void dnc(int l,int r,int level=0)
{
    if(l==r) return;
    int mid=(l+r)>>1;
    for(int a=0;a<k;a++) dp[level][mid][a][a]=0;
    for(int i=mid-1;i>=l;i--)
    {
        for(int a=0;a<k;a++) for(int b=0;b<k;b++) for(int c=0;c<k;c++) dp[level][i][a][c]=min(dp[level][i][a][c],dp[level][i+1][b][c]+cost[i][a][b]);
    }
    for(int a=0;a<k;a++) for(int b=0;b<k;b++) dp[level][mid+1][a][b]=cost[mid][a][b];
    for(int i=mid+2;i<=r;i++)
    {
        for(int a=0;a<k;a++) for(int b=0;b<k;b++) for(int c=0;c<k;c++) dp[level][i][c][a]=min(dp[level][i][c][a],dp[level][i-1][c][b]+cost[i-1][b][a]);
    }
    for(int i=mid+1;i<=r;i++) mask[i]|=(1<<level);
    dnc(l,mid,level+1);dnc(mid+1,r,level+1);
}

void solve()
{
    cin >> k >> n >> m >> q;
    for(int i=0;i<n;i++) for(int a=0;a<k;a++) for(int b=0;b<k;b++) cost[i][a][b]=INFINITE;
    for(int level=0;(1<<level)<n;level++) for(int i=0;i<n;i++) for(int a=0;a<k;a++) for(int b=0;b<k;b++) dp[level][i][a][b]=INFINITE;
    while(m--)
    {
        int u,v,w;
        cin >> u >> v >> w;
        cost[u/k][u%k][v%k]=w;
    }
    dnc(0,(n-1)/k);
    while(q--)
    {
        int u,v;
        cin >> u >> v;
        if(u/k==v/k)
        {
            cout << -1 << endl;
            continue;
        }
        int level=__builtin_ctz(mask[u/k]^mask[v/k]),ans=INFINITE;
        for(int j=0;j<k;j++) ans=min(ans,dp[level][u/k][u%k][j]+dp[level][v/k][j][v%k]);
        if(ans==INFINITE) ans=-1;
        cout << ans << endl;
    }
}

int main()
{
    fastIO
    //freopen("hanhhhh.inp","r",stdin);
    //freopen("hanhhhh.out","w",stdout);
    int t=1;
    //cin >> t;
    while(t--)
    solve();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 84820 KB Output is correct
2 Correct 2 ms 10588 KB Output is correct
3 Correct 1 ms 10588 KB Output is correct
4 Correct 1 ms 10708 KB Output is correct
5 Correct 3 ms 22876 KB Output is correct
6 Correct 3 ms 22876 KB Output is correct
7 Correct 3 ms 22872 KB Output is correct
8 Correct 36 ms 84572 KB Output is correct
9 Correct 35 ms 84784 KB Output is correct
10 Correct 23 ms 84572 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 84568 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10744 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 5 ms 22876 KB Output is correct
9 Correct 36 ms 84584 KB Output is correct
10 Correct 59 ms 84544 KB Output is correct
11 Correct 44 ms 84572 KB Output is correct
12 Correct 46 ms 84636 KB Output is correct
13 Correct 52 ms 78428 KB Output is correct
14 Correct 32 ms 78428 KB Output is correct
15 Correct 40 ms 78428 KB Output is correct
16 Correct 46 ms 78428 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10584 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10784 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 1 ms 10840 KB Output is correct
6 Correct 3 ms 22876 KB Output is correct
7 Correct 3 ms 22876 KB Output is correct
8 Correct 4 ms 23000 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 35 ms 84736 KB Output is correct
11 Correct 44 ms 84568 KB Output is correct
12 Correct 48 ms 84568 KB Output is correct
13 Correct 50 ms 84572 KB Output is correct
14 Correct 51 ms 84584 KB Output is correct
15 Correct 39 ms 78428 KB Output is correct
16 Correct 41 ms 78424 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10584 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10784 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 1 ms 10840 KB Output is correct
6 Correct 3 ms 22876 KB Output is correct
7 Correct 3 ms 22876 KB Output is correct
8 Correct 4 ms 23000 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 35 ms 84736 KB Output is correct
11 Correct 44 ms 84568 KB Output is correct
12 Correct 48 ms 84568 KB Output is correct
13 Correct 50 ms 84572 KB Output is correct
14 Correct 51 ms 84584 KB Output is correct
15 Correct 39 ms 78428 KB Output is correct
16 Correct 41 ms 78424 KB Output is correct
17 Correct 46 ms 84568 KB Output is correct
18 Correct 1 ms 10584 KB Output is correct
19 Correct 2 ms 10588 KB Output is correct
20 Correct 1 ms 10588 KB Output is correct
21 Correct 1 ms 10588 KB Output is correct
22 Correct 1 ms 10584 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 4 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22996 KB Output is correct
27 Correct 37 ms 84568 KB Output is correct
28 Correct 46 ms 84636 KB Output is correct
29 Correct 49 ms 84588 KB Output is correct
30 Correct 43 ms 84572 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 84820 KB Output is correct
2 Correct 2 ms 10588 KB Output is correct
3 Correct 1 ms 10588 KB Output is correct
4 Correct 1 ms 10708 KB Output is correct
5 Correct 3 ms 22876 KB Output is correct
6 Correct 3 ms 22876 KB Output is correct
7 Correct 3 ms 22872 KB Output is correct
8 Correct 36 ms 84572 KB Output is correct
9 Correct 35 ms 84784 KB Output is correct
10 Correct 23 ms 84572 KB Output is correct
11 Correct 40 ms 84568 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 2 ms 10744 KB Output is correct
14 Correct 1 ms 10588 KB Output is correct
15 Correct 2 ms 10588 KB Output is correct
16 Correct 1 ms 10588 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 36 ms 84584 KB Output is correct
20 Correct 59 ms 84544 KB Output is correct
21 Correct 44 ms 84572 KB Output is correct
22 Correct 46 ms 84636 KB Output is correct
23 Correct 52 ms 78428 KB Output is correct
24 Correct 32 ms 78428 KB Output is correct
25 Correct 40 ms 78428 KB Output is correct
26 Correct 46 ms 78428 KB Output is correct
27 Correct 1 ms 10584 KB Output is correct
28 Correct 1 ms 10588 KB Output is correct
29 Correct 1 ms 10784 KB Output is correct
30 Correct 1 ms 10588 KB Output is correct
31 Correct 1 ms 10840 KB Output is correct
32 Correct 3 ms 22876 KB Output is correct
33 Correct 3 ms 22876 KB Output is correct
34 Correct 4 ms 23000 KB Output is correct
35 Correct 4 ms 22876 KB Output is correct
36 Correct 35 ms 84736 KB Output is correct
37 Correct 44 ms 84568 KB Output is correct
38 Correct 48 ms 84568 KB Output is correct
39 Correct 50 ms 84572 KB Output is correct
40 Correct 51 ms 84584 KB Output is correct
41 Correct 39 ms 78428 KB Output is correct
42 Correct 41 ms 78424 KB Output is correct
43 Correct 46 ms 84568 KB Output is correct
44 Correct 1 ms 10584 KB Output is correct
45 Correct 2 ms 10588 KB Output is correct
46 Correct 1 ms 10588 KB Output is correct
47 Correct 1 ms 10588 KB Output is correct
48 Correct 1 ms 10584 KB Output is correct
49 Correct 4 ms 22876 KB Output is correct
50 Correct 4 ms 22876 KB Output is correct
51 Correct 5 ms 22876 KB Output is correct
52 Correct 5 ms 22996 KB Output is correct
53 Correct 37 ms 84568 KB Output is correct
54 Correct 46 ms 84636 KB Output is correct
55 Correct 49 ms 84588 KB Output is correct
56 Correct 43 ms 84572 KB Output is correct
57 Correct 79 ms 84572 KB Output is correct
58 Correct 36 ms 84584 KB Output is correct
59 Correct 41 ms 84572 KB Output is correct