답안 #565534

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
565534	2022-05-21T04:38:26 Z	lohacho	Wild Boar (JOI18_wild_boar)	C++14	12 / 100	73 ms	10828 KB

wild_boar

#include <bits/stdc++.h>
#define int long long
#define mi(x, y) (x = min(x, y))
#define ma(x, y) (x = max(x, y))
using namespace std;
 
vector<vector<vector<int>>> dijkstra(int s, vector<vector<pair<int, int>>>&way){
    vector<vector<vector<int>>> rv((int)way.size(), vector<vector<int>>(4, vector<int>{-1, -1, -1}));
    priority_queue<vector<int>> pq;
    for(auto&nxt:way[s]){
        pq.push({-nxt.second, nxt.first, s, nxt.first});
    }
    while(!pq.empty()){
        int val = -pq.top()[0], ns = pq.top()[1], ne = pq.top()[2], now = pq.top()[3];
        pq.pop();
        int vpos = 0;
        if(rv[now][0][0] != -1){
            vpos = (rv[now][0][0] != ns) * 2 + (rv[now][0][1] != ne);
        }
        if(rv[now][vpos][0] != -1) continue;
        rv[now][vpos] = {ns, ne, val};
        for(auto&nxt:way[now]){
            if(nxt.first != ne){
                pq.push({-(val + nxt.second), ns, now, nxt.first});
            }
        }
    }
    return rv;
}
 
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, m, t, l; cin >> n >> m >> t >> l;
    vector<vector<pair<int, int>>> way(n);
    for(int i = 0; i < m; ++i){
        int x, y, z; cin >> x >> y >> z; --x, --y;
        way[x].push_back({y, z});
        way[y].push_back({x, z});
    }
    vector<vector<vector<vector<int>>>> dis(n);
    for(int i = 0; i < n; ++i){
        dis[i] = dijkstra(i, way);
    }
    vector<int> trk(l);
    for(int i = 0; i < l; ++i){
        cin >> trk[i]; --trk[i];
    }
    int x, y; cin >> x >> y; --x, --y;
    trk[x] = y;
    vector<vector<int>> dp(l, vector<int>(4, (int)1e18));
    for(int i = 0; i < 4; ++i){
        if(dis[trk[0]][trk[1]][i][0] != -1) dp[1][i] = dis[trk[0]][trk[1]][i][2];
    }
    for(int i = 1; i + 1 < l; ++i){
        for(int j = 0; j < 4; ++j){
            for(int k = 0; k < 4; ++k){
                if(dis[trk[i - 1]][trk[i]][j][0] != -1 && dis[trk[i]][trk[i + 1]][k][0] != -1){
                    if(dis[trk[i - 1]][trk[i]][j][1] != dis[trk[i]][trk[i + 1]][k][0]){
                        mi(dp[i + 1][k], dp[i][j] + dis[trk[i]][trk[i + 1]][k][2]);
                    }
                }
            }
        }
    }
    int ans = (int)1e18;
    for(int i = 0; i < 4; ++i){
        mi(ans, dp[l - 1][i]);
    }
    if(ans == (int)1e18) ans = -1;
    cout << ans << '\n';
    return 0;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct

Subtask #2
0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	2 ms	356 KB	Output is correct
27	Correct	24 ms	10800 KB	Output is correct
28	Correct	24 ms	10748 KB	Output is correct
29	Incorrect	73 ms	10828 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

Subtask #3
0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	2 ms	356 KB	Output is correct
27	Correct	24 ms	10800 KB	Output is correct
28	Correct	24 ms	10748 KB	Output is correct
29	Incorrect	73 ms	10828 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

Subtask #4
0 / 38.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	2 ms	356 KB	Output is correct
27	Correct	24 ms	10800 KB	Output is correct
28	Correct	24 ms	10748 KB	Output is correct
29	Incorrect	73 ms	10828 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

답안 #565534

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 0 / 35.0

Subtask #3 0 / 15.0

Subtask #4 0 / 38.0

Subtask #1
12.0 / 12.0

Subtask #2
0 / 35.0

Subtask #3
0 / 15.0

Subtask #4
0 / 38.0