oj.uz

Submission #1105865

# Submission time Handle Problem Language Result Execution time Memory
1105865 2024-10-28T06:45:14 Z koukirocks Toll (BOI17_toll) C++17
100 / 100
 99 ms 38484 KB 
#include <bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0); cin.tie(0)
#define all(x) (x).begin(),(x).end()
#define F first
#define S second
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx,avx2")
//#pragma GCC target("popcnt")
 
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ldb;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
const ll MAX=2e5+10,P=1e9+7;
const ll INF=0x3f3f3f3f,oo=0x3f3f3f3f3f3f3f3f;
const ldb eps=1e-6;
const ldb PI=acos(-1.0);
const int dir[4][2]={{0,1},{0,-1},{1,0},{-1,0}};
template<typename T>
using vvector = vector<vector<T>>;

int main() {
    speed;
    int n,m,k,q;
    cin>>k>>n>>m>>q;
    vvector<ll> G(n,vector<ll>(k,oo));
    for (int i=0;i<m;i++) {
        ll a,b,w;
        cin>>a>>b>>w;
        G[a][b%k]=min(G[a][b%k],w);
    }
    ll spt[n/k+10][k][k][20];
    for (int i=n-1;i>=0;i--) {
        int ik=i/k;
        int ir=i%k;
        for (int j=0;j<k;j++) spt[ik][ir][j][0]=G[i][j];
        for (int l=1;l<20;l++) {
            for (int j=0;j<k;j++) {
                spt[ik][ir][j][l]=oo;
                if (ik+(1<<l)<=(n-1)/k) {
                    for (int mid=0;mid<k;mid++) {
                        spt[ik][ir][j][l]=min(spt[ik][ir][j][l],spt[ik][ir][mid][l-1]+spt[ik+(1<<(l-1))][mid][j][l-1]);
                        // cout<<mid<<" "<<spt[ik][ir][mid][l-1]<<" "<<spt[ik+(1<<(l-1))][mid][j][l-1]<<" mid spt\n";
                    }
                    // cout<<ik<<" "<<ir<<" "<<j<<" "<<l<<" "<<spt[ik][ir][j][l]<<" ik ir j l spt\n";
                }
            }
        }
    }
    while (q--) {
        int a,b;
        cin>>a>>b;
        int ia=a/k;
        int ra=a%k;
        int ib=b/k;
        int rb=b%k;
        int x=ia;
        ll md[k];
        for (int i=0;i<k;i++) md[i]=oo;
        md[ra]=0;
        for (int l=19;l>=0;l--) {
            // cout<<l<<" l\n";
            if (ib-x>=(1<<l)) {
                ll nmd[k];
                memset(nmd,0x3f,sizeof(nmd));
                for (int i=0;i<k;i++) {
                    for (int j=0;j<k;j++) {
                        nmd[j]=min(nmd[j],md[i]+spt[x][i][j][l]);
                    }
                }
                x+=(1<<l);
                for (int i=0;i< k;i++) md[i]=nmd[i];
                // cout<<x<<" x\n";
                // for (int i=0;i<k;i++) cout<<md[i]<<" ";
                // cout<<"\n";
            }
        }
        cout<<(md[rb]>=oo?-1:md[rb])<<"\n";
    }
    return 0;
}


/*
3 10 9 1
0 3 1
3 6 2
6 9 3
0 4 2
4 7 1
7 9 4
0 5 4
5 8 3
8 9 2
3 9
*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 11088 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 26 ms 10832 KB Output is correct
9 Correct 27 ms 10940 KB Output is correct
10 Correct 20 ms 10832 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 18768 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 4 ms 736 KB Output is correct
8 Correct 4 ms 848 KB Output is correct
9 Correct 24 ms 11764 KB Output is correct
10 Correct 60 ms 28776 KB Output is correct
11 Correct 46 ms 20528 KB Output is correct
12 Correct 49 ms 27976 KB Output is correct
13 Correct 60 ms 28500 KB Output is correct
14 Correct 35 ms 17480 KB Output is correct
15 Correct 48 ms 27208 KB Output is correct
16 Correct 48 ms 27212 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 732 KB Output is correct
8 Correct 2 ms 1360 KB Output is correct
9 Correct 2 ms 984 KB Output is correct
10 Correct 22 ms 11600 KB Output is correct
11 Correct 38 ms 20336 KB Output is correct
12 Correct 55 ms 28744 KB Output is correct
13 Correct 58 ms 29036 KB Output is correct
14 Correct 52 ms 28268 KB Output is correct
15 Correct 47 ms 27216 KB Output is correct
16 Correct 47 ms 27208 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 732 KB Output is correct
8 Correct 2 ms 1360 KB Output is correct
9 Correct 2 ms 984 KB Output is correct
10 Correct 22 ms 11600 KB Output is correct
11 Correct 38 ms 20336 KB Output is correct
12 Correct 55 ms 28744 KB Output is correct
13 Correct 58 ms 29036 KB Output is correct
14 Correct 52 ms 28268 KB Output is correct
15 Correct 47 ms 27216 KB Output is correct
16 Correct 47 ms 27208 KB Output is correct
17 Correct 45 ms 20336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 592 KB Output is correct
24 Correct 2 ms 848 KB Output is correct
25 Correct 3 ms 1360 KB Output is correct
26 Correct 3 ms 1104 KB Output is correct
27 Correct 25 ms 11632 KB Output is correct
28 Correct 63 ms 28744 KB Output is correct
29 Correct 68 ms 29012 KB Output is correct
30 Correct 64 ms 28524 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 11088 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 592 KB Output is correct
6 Correct 1 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 26 ms 10832 KB Output is correct
9 Correct 27 ms 10940 KB Output is correct
10 Correct 20 ms 10832 KB Output is correct
11 Correct 41 ms 18768 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 4 ms 736 KB Output is correct
18 Correct 4 ms 848 KB Output is correct
19 Correct 24 ms 11764 KB Output is correct
20 Correct 60 ms 28776 KB Output is correct
21 Correct 46 ms 20528 KB Output is correct
22 Correct 49 ms 27976 KB Output is correct
23 Correct 60 ms 28500 KB Output is correct
24 Correct 35 ms 17480 KB Output is correct
25 Correct 48 ms 27208 KB Output is correct
26 Correct 48 ms 27212 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 592 KB Output is correct
33 Correct 1 ms 732 KB Output is correct
34 Correct 2 ms 1360 KB Output is correct
35 Correct 2 ms 984 KB Output is correct
36 Correct 22 ms 11600 KB Output is correct
37 Correct 38 ms 20336 KB Output is correct
38 Correct 55 ms 28744 KB Output is correct
39 Correct 58 ms 29036 KB Output is correct
40 Correct 52 ms 28268 KB Output is correct
41 Correct 47 ms 27216 KB Output is correct
42 Correct 47 ms 27208 KB Output is correct
43 Correct 45 ms 20336 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 336 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 2 ms 592 KB Output is correct
50 Correct 2 ms 848 KB Output is correct
51 Correct 3 ms 1360 KB Output is correct
52 Correct 3 ms 1104 KB Output is correct
53 Correct 25 ms 11632 KB Output is correct
54 Correct 63 ms 28744 KB Output is correct
55 Correct 68 ms 29012 KB Output is correct
56 Correct 64 ms 28524 KB Output is correct
57 Correct 99 ms 38484 KB Output is correct
58 Correct 26 ms 11856 KB Output is correct
59 Correct 45 ms 20552 KB Output is correct