oj.uz

Submission #828270

# Submission time Handle Problem Language Result Execution time Memory
828270 2023-08-17T07:32:37 Z Darren0724 Toll (BOI17_toll) C++17
100 / 100
 631 ms 312508 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
const int N=50005;
const int INF=1e9;
const int K=__lg(N)+1;
vector jump(N, vector (K,vector(5,vector(5,INF))));
void f(vector<vector<int>> &a,vector<vector<int>> &b,vector<vector<int>> &c,int k){
    //i -> p -> j
    for(int i=0;i<k;i++){
        for(int p=0;p<k;p++){
            for(int j=0;j<k;j++){
                c[i][j]=min(c[i][j],a[i][p]+b[p][j]);
            }
        }
    }
}
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int k,n,m,q;cin>>k>>n>>m>>q;
    for(int i=0;i<m;i++){
        int a,b,c;cin>>a>>b>>c;
        int t=a/k;
        jump[t][0][a%k][b%k]=c;
    }
    for(int j=1;j<K;j++){
        for(int i=0;i+(1<<j-1)<N;i++){
            f(jump[i][j-1],jump[i+(1<<j-1)][j-1],jump[i][j],k);
        }
    }
    for(int i=0;i<q;i++){
        vector ans(5,vector(5,INF));
        int a,b;cin>>a>>b;
        ans[a%k][a%k]=0;
        int t=(b/k)-(a/k);
        if(t==0){
            cout<<-1<<endl;
            continue;
        }
        int now=a/k;
        for(int j=0;j<K;j++){
            if(t&(1<<j)){
                vector<vector<int>> y(5);
                for(int j1=0;j1<5;j1++){
                    y[j1]=ans[j1];
                    ans[j1].assign(5,INF);
                }
                f(y,jump[now][j],ans,k);
                now+=(1<<j);
            }
        }
        int ans1=ans[a%k][b%k];
        cout<<(ans1>=INF?-1:ans1)<<endl;
    }
    return 0;
}

Compilation message

toll.cpp: In function 'int32_t main()':
toll.cpp:29:28: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   29 |         for(int i=0;i+(1<<j-1)<N;i++){
      |                           ~^~
toll.cpp:30:40: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   30 |             f(jump[i][j-1],jump[i+(1<<j-1)][j-1],jump[i][j],k);
      |                                       ~^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 309148 KB Output is correct
2 Correct 293 ms 309120 KB Output is correct
3 Correct 270 ms 309060 KB Output is correct
4 Correct 312 ms 309044 KB Output is correct
5 Correct 284 ms 309092 KB Output is correct
6 Correct 298 ms 309156 KB Output is correct
7 Correct 316 ms 309160 KB Output is correct
8 Correct 381 ms 309160 KB Output is correct
9 Correct 355 ms 309156 KB Output is correct
10 Correct 322 ms 309156 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 400 ms 309156 KB Output is correct
2 Correct 278 ms 309048 KB Output is correct
3 Correct 349 ms 309076 KB Output is correct
4 Correct 370 ms 309068 KB Output is correct
5 Correct 465 ms 309052 KB Output is correct
6 Correct 480 ms 309036 KB Output is correct
7 Correct 303 ms 309164 KB Output is correct
8 Correct 343 ms 309204 KB Output is correct
9 Correct 340 ms 310040 KB Output is correct
10 Correct 447 ms 311440 KB Output is correct
11 Correct 383 ms 310908 KB Output is correct
12 Correct 476 ms 310452 KB Output is correct
13 Correct 555 ms 311548 KB Output is correct
14 Correct 407 ms 310604 KB Output is correct
15 Correct 520 ms 310368 KB Output is correct
16 Correct 500 ms 310376 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 291 ms 309116 KB Output is correct
2 Correct 316 ms 309064 KB Output is correct
3 Correct 409 ms 309220 KB Output is correct
4 Correct 429 ms 309152 KB Output is correct
5 Correct 505 ms 309084 KB Output is correct
6 Correct 308 ms 309076 KB Output is correct
7 Correct 362 ms 309192 KB Output is correct
8 Correct 496 ms 309144 KB Output is correct
9 Correct 409 ms 309100 KB Output is correct
10 Correct 308 ms 309912 KB Output is correct
11 Correct 375 ms 310592 KB Output is correct
12 Correct 456 ms 311248 KB Output is correct
13 Correct 442 ms 311452 KB Output is correct
14 Correct 416 ms 310932 KB Output is correct
15 Correct 502 ms 310340 KB Output is correct
16 Correct 500 ms 310296 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 291 ms 309116 KB Output is correct
2 Correct 316 ms 309064 KB Output is correct
3 Correct 409 ms 309220 KB Output is correct
4 Correct 429 ms 309152 KB Output is correct
5 Correct 505 ms 309084 KB Output is correct
6 Correct 308 ms 309076 KB Output is correct
7 Correct 362 ms 309192 KB Output is correct
8 Correct 496 ms 309144 KB Output is correct
9 Correct 409 ms 309100 KB Output is correct
10 Correct 308 ms 309912 KB Output is correct
11 Correct 375 ms 310592 KB Output is correct
12 Correct 456 ms 311248 KB Output is correct
13 Correct 442 ms 311452 KB Output is correct
14 Correct 416 ms 310932 KB Output is correct
15 Correct 502 ms 310340 KB Output is correct
16 Correct 500 ms 310296 KB Output is correct
17 Correct 392 ms 310656 KB Output is correct
18 Correct 286 ms 309136 KB Output is correct
19 Correct 335 ms 309048 KB Output is correct
20 Correct 428 ms 309096 KB Output is correct
21 Correct 430 ms 309028 KB Output is correct
22 Correct 483 ms 309152 KB Output is correct
23 Correct 312 ms 309192 KB Output is correct
24 Correct 379 ms 309208 KB Output is correct
25 Correct 513 ms 309236 KB Output is correct
26 Correct 465 ms 309152 KB Output is correct
27 Correct 370 ms 310004 KB Output is correct
28 Correct 482 ms 311392 KB Output is correct
29 Correct 514 ms 311544 KB Output is correct
30 Correct 631 ms 311008 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 309148 KB Output is correct
2 Correct 293 ms 309120 KB Output is correct
3 Correct 270 ms 309060 KB Output is correct
4 Correct 312 ms 309044 KB Output is correct
5 Correct 284 ms 309092 KB Output is correct
6 Correct 298 ms 309156 KB Output is correct
7 Correct 316 ms 309160 KB Output is correct
8 Correct 381 ms 309160 KB Output is correct
9 Correct 355 ms 309156 KB Output is correct
10 Correct 322 ms 309156 KB Output is correct
11 Correct 400 ms 309156 KB Output is correct
12 Correct 278 ms 309048 KB Output is correct
13 Correct 349 ms 309076 KB Output is correct
14 Correct 370 ms 309068 KB Output is correct
15 Correct 465 ms 309052 KB Output is correct
16 Correct 480 ms 309036 KB Output is correct
17 Correct 303 ms 309164 KB Output is correct
18 Correct 343 ms 309204 KB Output is correct
19 Correct 340 ms 310040 KB Output is correct
20 Correct 447 ms 311440 KB Output is correct
21 Correct 383 ms 310908 KB Output is correct
22 Correct 476 ms 310452 KB Output is correct
23 Correct 555 ms 311548 KB Output is correct
24 Correct 407 ms 310604 KB Output is correct
25 Correct 520 ms 310368 KB Output is correct
26 Correct 500 ms 310376 KB Output is correct
27 Correct 291 ms 309116 KB Output is correct
28 Correct 316 ms 309064 KB Output is correct
29 Correct 409 ms 309220 KB Output is correct
30 Correct 429 ms 309152 KB Output is correct
31 Correct 505 ms 309084 KB Output is correct
32 Correct 308 ms 309076 KB Output is correct
33 Correct 362 ms 309192 KB Output is correct
34 Correct 496 ms 309144 KB Output is correct
35 Correct 409 ms 309100 KB Output is correct
36 Correct 308 ms 309912 KB Output is correct
37 Correct 375 ms 310592 KB Output is correct
38 Correct 456 ms 311248 KB Output is correct
39 Correct 442 ms 311452 KB Output is correct
40 Correct 416 ms 310932 KB Output is correct
41 Correct 502 ms 310340 KB Output is correct
42 Correct 500 ms 310296 KB Output is correct
43 Correct 392 ms 310656 KB Output is correct
44 Correct 286 ms 309136 KB Output is correct
45 Correct 335 ms 309048 KB Output is correct
46 Correct 428 ms 309096 KB Output is correct
47 Correct 430 ms 309028 KB Output is correct
48 Correct 483 ms 309152 KB Output is correct
49 Correct 312 ms 309192 KB Output is correct
50 Correct 379 ms 309208 KB Output is correct
51 Correct 513 ms 309236 KB Output is correct
52 Correct 465 ms 309152 KB Output is correct
53 Correct 370 ms 310004 KB Output is correct
54 Correct 482 ms 311392 KB Output is correct
55 Correct 514 ms 311544 KB Output is correct
56 Correct 631 ms 311008 KB Output is correct
57 Correct 597 ms 312508 KB Output is correct
58 Correct 410 ms 310032 KB Output is correct
59 Correct 488 ms 310880 KB Output is correct