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답안 #526718

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
526718 2022-02-16T02:52:19 Z beepbeepsheep Autobus (COCI22_autobus) C++17
70 / 70
 144 ms 3268 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ii pair<ll,ll>
#define iii pair<ll,ii>
#define endl '\n'
const ll inf=1e15;
const ll mod=1e9+7;
const ll maxn=71;

ll adj[maxn][maxn];
ll dis[maxn][maxn][maxn];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    for (int i=0;i<maxn;i++){
        for (int j=0;j<maxn;j++){
            adj[i][j]=inf;
        }
        adj[i][i]=0;
    }
    ll n,e,a,b,w;
    cin>>n>>e;
    for (int i=0;i<e;i++){
        cin>>a>>b>>w;
        adj[a][b]=min(adj[a][b],w);
    }
    ll k,y,u,x;
    cin>>k>>y;
    k=min(k,69LL);
    queue<ii> q;
    memset(dis,-1,sizeof(dis));
    for (int a=1;a<=n;a++){
        q.emplace(a,0);
        dis[a][a][0]=0;
        while (q.size()){
            u=q.front().first;
            x=q.front().second;
            q.pop();
            if (x>k) continue;
            for (int i=1;i<=n;i++){
                if (dis[a][i][x+1]!=-1){
                    dis[a][i][x+1]=min(dis[a][i][x+1],dis[a][u][x]+adj[u][i]);
                } else{
                    dis[a][i][x+1]=dis[a][u][x]+adj[u][i];
                    q.emplace(i,x+1);
                } //n
            }
        }//n2
    }
    for (int i=0;i<y;i++){
        ll ans=inf;
        cin>>a>>b;
        for (int i=0;i<=k;i++){
            if (dis[a][b][i]!=-1) ans=min(ans,dis[a][b][i]);
        }
        cout<<(ans==inf?-1:ans)<<endl;
    }//n2
    return 0;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 3148 KB Output is correct
2 Correct 1 ms 3148 KB Output is correct
3 Correct 1 ms 3148 KB Output is correct
4 Correct 2 ms 3148 KB Output is correct
5 Correct 2 ms 3148 KB Output is correct
6 Correct 2 ms 3148 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3148 KB Output is correct
2 Correct 3 ms 3184 KB Output is correct
3 Correct 5 ms 3192 KB Output is correct
4 Correct 4 ms 3148 KB Output is correct
5 Correct 4 ms 3148 KB Output is correct
6 Correct 5 ms 3148 KB Output is correct
7 Correct 7 ms 3156 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 3148 KB Output is correct
2 Correct 1 ms 3148 KB Output is correct
3 Correct 1 ms 3148 KB Output is correct
4 Correct 2 ms 3148 KB Output is correct
5 Correct 2 ms 3148 KB Output is correct
6 Correct 2 ms 3148 KB Output is correct
7 Correct 18 ms 3160 KB Output is correct
8 Correct 37 ms 3148 KB Output is correct
9 Correct 4 ms 3148 KB Output is correct
10 Correct 19 ms 3164 KB Output is correct
11 Correct 8 ms 3152 KB Output is correct
12 Correct 22 ms 3168 KB Output is correct
13 Correct 83 ms 3140 KB Output is correct
14 Correct 91 ms 3152 KB Output is correct
15 Correct 118 ms 3140 KB Output is correct
16 Correct 91 ms 3024 KB Output is correct
17 Correct 95 ms 3028 KB Output is correct
18 Correct 102 ms 3028 KB Output is correct
19 Correct 117 ms 3024 KB Output is correct
20 Correct 98 ms 3036 KB Output is correct
21 Correct 89 ms 3152 KB Output is correct
22 Correct 96 ms 3152 KB Output is correct
23 Correct 94 ms 3152 KB Output is correct
24 Correct 97 ms 3164 KB Output is correct
25 Correct 87 ms 3028 KB Output is correct
26 Correct 91 ms 3028 KB Output is correct
27 Correct 96 ms 3028 KB Output is correct
28 Correct 93 ms 3028 KB Output is correct
29 Correct 88 ms 3140 KB Output is correct
30 Correct 91 ms 3156 KB Output is correct
31 Correct 95 ms 3152 KB Output is correct
32 Correct 108 ms 3156 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 3148 KB Output is correct
2 Correct 1 ms 3148 KB Output is correct
3 Correct 1 ms 3148 KB Output is correct
4 Correct 2 ms 3148 KB Output is correct
5 Correct 2 ms 3148 KB Output is correct
6 Correct 2 ms 3148 KB Output is correct
7 Correct 3 ms 3148 KB Output is correct
8 Correct 3 ms 3184 KB Output is correct
9 Correct 5 ms 3192 KB Output is correct
10 Correct 4 ms 3148 KB Output is correct
11 Correct 4 ms 3148 KB Output is correct
12 Correct 5 ms 3148 KB Output is correct
13 Correct 7 ms 3156 KB Output is correct
14 Correct 18 ms 3160 KB Output is correct
15 Correct 37 ms 3148 KB Output is correct
16 Correct 4 ms 3148 KB Output is correct
17 Correct 19 ms 3164 KB Output is correct
18 Correct 8 ms 3152 KB Output is correct
19 Correct 22 ms 3168 KB Output is correct
20 Correct 83 ms 3140 KB Output is correct
21 Correct 91 ms 3152 KB Output is correct
22 Correct 118 ms 3140 KB Output is correct
23 Correct 91 ms 3024 KB Output is correct
24 Correct 95 ms 3028 KB Output is correct
25 Correct 102 ms 3028 KB Output is correct
26 Correct 117 ms 3024 KB Output is correct
27 Correct 98 ms 3036 KB Output is correct
28 Correct 89 ms 3152 KB Output is correct
29 Correct 96 ms 3152 KB Output is correct
30 Correct 94 ms 3152 KB Output is correct
31 Correct 97 ms 3164 KB Output is correct
32 Correct 87 ms 3028 KB Output is correct
33 Correct 91 ms 3028 KB Output is correct
34 Correct 96 ms 3028 KB Output is correct
35 Correct 93 ms 3028 KB Output is correct
36 Correct 88 ms 3140 KB Output is correct
37 Correct 91 ms 3156 KB Output is correct
38 Correct 95 ms 3152 KB Output is correct
39 Correct 108 ms 3156 KB Output is correct
40 Correct 10 ms 3148 KB Output is correct
41 Correct 32 ms 3152 KB Output is correct
42 Correct 6 ms 3156 KB Output is correct
43 Correct 34 ms 3148 KB Output is correct
44 Correct 8 ms 3152 KB Output is correct
45 Correct 32 ms 3148 KB Output is correct
46 Correct 86 ms 3156 KB Output is correct
47 Correct 100 ms 3044 KB Output is correct
48 Correct 86 ms 3044 KB Output is correct
49 Correct 109 ms 3048 KB Output is correct
50 Correct 86 ms 3156 KB Output is correct
51 Correct 92 ms 3024 KB Output is correct
52 Correct 82 ms 3032 KB Output is correct
53 Correct 116 ms 3140 KB Output is correct
54 Correct 84 ms 3156 KB Output is correct
55 Correct 114 ms 3268 KB Output is correct
56 Correct 110 ms 3160 KB Output is correct
57 Correct 111 ms 3168 KB Output is correct
58 Correct 85 ms 3024 KB Output is correct
59 Correct 95 ms 3040 KB Output is correct
60 Correct 125 ms 3136 KB Output is correct
61 Correct 144 ms 3040 KB Output is correct
62 Correct 117 ms 3164 KB Output is correct
63 Correct 90 ms 3152 KB Output is correct
64 Correct 96 ms 3136 KB Output is correct
65 Correct 117 ms 3164 KB Output is correct