oj.uz

답안 #545447

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
545447 2022-04-04T14:19:32 Z pokmui9909 철도 요금 (JOI16_ho_t3) C++17
100 / 100
 198 ms 26624 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define x first
#define y second
ll N, M, K;
pair<ll, ll> E[200005];
vector<pair<ll, ll>> G[200005];
ll dist[200005];
const ll INF = 1e18;
ll deg[200005];
ll chk[200005];

int main(){
    cin.tie(0) -> sync_with_stdio(false);

    cin >> N >> M >> K;
    for(int i = 1; i <= M; i++){
        cin >> E[i].x >> E[i].y;
        G[E[i].x].push_back({E[i].y, i});
        G[E[i].y].push_back({E[i].x, i});
    }
    queue<ll> Q;
    fill(dist, dist + N + 1, INF);
    Q.push(1); dist[1] = 0;
    while(!Q.empty()){
        ll u = Q.front(); Q.pop();
        for(auto i : G[u]){
            if(dist[i.x] <= dist[u] + 1) continue;
            dist[i.x] = dist[u] + 1;
            Q.push(i.x);
        }
    }
    for(int i = 1; i <= M; i++){
        if(dist[E[i].x] == dist[E[i].y]) continue;
        if(dist[E[i].x] > dist[E[i].y]) swap(E[i].x, E[i].y);
        deg[E[i].y]++;
    }
    ll r = 0;
    while(K--){
        ll t; cin >> t;
        if(!chk[t] && dist[E[t].x] != dist[E[t].y]){
            Q.push(t); chk[t] = 1;
            while(!Q.empty()){
                ll u = Q.front(); Q.pop();
                deg[E[u].y]--;
                if(deg[E[u].y] == 0){
                    r++;
                    for(auto i : G[E[u].y]){
                        if(chk[i.y] || dist[E[i.y].x] == dist[E[i.y].y]) continue;
                        chk[i.y] = 1;
                        Q.push(i.y);
                    }
                }
            }
        }
        cout << r << '\n';
    }
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5032 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 4 ms 5332 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5120 KB Output is correct
6 Correct 4 ms 5024 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5032 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 4 ms 5332 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5120 KB Output is correct
6 Correct 4 ms 5024 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 114 ms 21012 KB Output is correct
10 Correct 124 ms 21048 KB Output is correct
11 Correct 125 ms 20156 KB Output is correct
12 Correct 137 ms 20312 KB Output is correct
13 Correct 109 ms 20716 KB Output is correct
14 Correct 98 ms 20448 KB Output is correct
15 Correct 74 ms 16020 KB Output is correct
16 Correct 51 ms 14720 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 112 ms 22092 KB Output is correct
2 Correct 111 ms 21848 KB Output is correct
3 Correct 79 ms 17428 KB Output is correct
4 Correct 106 ms 20804 KB Output is correct
5 Correct 97 ms 20544 KB Output is correct
6 Correct 106 ms 20628 KB Output is correct
7 Correct 55 ms 14272 KB Output is correct
8 Correct 57 ms 14136 KB Output is correct
9 Correct 32 ms 12740 KB Output is correct
10 Correct 29 ms 12976 KB Output is correct
11 Correct 119 ms 21140 KB Output is correct
12 Correct 103 ms 20784 KB Output is correct
13 Correct 109 ms 20408 KB Output is correct
14 Correct 103 ms 21864 KB Output is correct
15 Correct 125 ms 20504 KB Output is correct
16 Correct 124 ms 21936 KB Output is correct
17 Correct 137 ms 21748 KB Output is correct
18 Correct 107 ms 16516 KB Output is correct
19 Correct 160 ms 26164 KB Output is correct
20 Correct 135 ms 21620 KB Output is correct
21 Correct 95 ms 15996 KB Output is correct
22 Correct 70 ms 15688 KB Output is correct

Subtask #4
39.0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5032 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 4 ms 5332 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5120 KB Output is correct
6 Correct 4 ms 5024 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 114 ms 21012 KB Output is correct
10 Correct 124 ms 21048 KB Output is correct
11 Correct 125 ms 20156 KB Output is correct
12 Correct 137 ms 20312 KB Output is correct
13 Correct 109 ms 20716 KB Output is correct
14 Correct 98 ms 20448 KB Output is correct
15 Correct 74 ms 16020 KB Output is correct
16 Correct 51 ms 14720 KB Output is correct
17 Correct 112 ms 22092 KB Output is correct
18 Correct 111 ms 21848 KB Output is correct
19 Correct 79 ms 17428 KB Output is correct
20 Correct 106 ms 20804 KB Output is correct
21 Correct 97 ms 20544 KB Output is correct
22 Correct 106 ms 20628 KB Output is correct
23 Correct 55 ms 14272 KB Output is correct
24 Correct 57 ms 14136 KB Output is correct
25 Correct 32 ms 12740 KB Output is correct
26 Correct 29 ms 12976 KB Output is correct
27 Correct 119 ms 21140 KB Output is correct
28 Correct 103 ms 20784 KB Output is correct
29 Correct 109 ms 20408 KB Output is correct
30 Correct 103 ms 21864 KB Output is correct
31 Correct 125 ms 20504 KB Output is correct
32 Correct 124 ms 21936 KB Output is correct
33 Correct 137 ms 21748 KB Output is correct
34 Correct 107 ms 16516 KB Output is correct
35 Correct 160 ms 26164 KB Output is correct
36 Correct 135 ms 21620 KB Output is correct
37 Correct 95 ms 15996 KB Output is correct
38 Correct 70 ms 15688 KB Output is correct
39 Correct 169 ms 26624 KB Output is correct
40 Correct 198 ms 26588 KB Output is correct
41 Correct 111 ms 20760 KB Output is correct
42 Correct 166 ms 25952 KB Output is correct
43 Correct 160 ms 26012 KB Output is correct
44 Correct 164 ms 25932 KB Output is correct
45 Correct 168 ms 26004 KB Output is correct
46 Correct 79 ms 17280 KB Output is correct
47 Correct 79 ms 16620 KB Output is correct
48 Correct 87 ms 16456 KB Output is correct
49 Correct 56 ms 14568 KB Output is correct
50 Correct 53 ms 14680 KB Output is correct
51 Correct 57 ms 15160 KB Output is correct
52 Correct 64 ms 15436 KB Output is correct
53 Correct 61 ms 14356 KB Output is correct
54 Correct 51 ms 14748 KB Output is correct