oj.uz

Submission #1112292

# Submission time Handle Problem Language Result Execution time Memory
1112292 2024-11-14T02:54:43 Z Zero_OP Construction Project 2 (JOI24_ho_t2) C++14
100 / 100
 189 ms 24748 KB 
#include <bits/stdc++.h>

using namespace std;

const long long inf = 1e18;

void testcase(){
    int N, M, S, T, L; long long K;
    cin >> N >> M >> S >> T >> L >> K;

    --S, --T;
    vector<vector<pair<int, int>>> adj(N);
    while(M--){
        int u, v, w;
        cin >> u >> v >> w;
        --u, --v;
        adj[u].emplace_back(v, w);
        adj[v].emplace_back(u, w);
    }

    auto dijkstra = [&](int s){
        vector<long long> d(N, inf);
        d[s] = 0;

        using node = pair<long long, int>;
        priority_queue<node, vector<node>, greater<node>> pq;
        pq.push({d[s], s});

        while(!pq.empty()){
            long long cur; int u;
            tie(cur, u) = pq.top(); pq.pop();
            if(cur != d[u]) continue;
            for(auto [v, w] : adj[u]){
                if(d[v] > d[u] + w){
                    d[v] = d[u] + w;
                    pq.push({d[v], v});
                }
            }
        }
        return d;
    };

    vector<long long> dS = dijkstra(S), dT = dijkstra(T);

    if(dS[T] <= K){
        cout << 1LL * N * (N - 1) / 2;
        return;
    }

    vector<long long> vS, vT;
    for(int i = 0; i < N; ++i){
        vS.emplace_back(dS[i]);
        vT.emplace_back(dT[i]);
    }

    sort(vS.begin(), vS.end());
    sort(vT.rbegin(), vT.rend());

    long long cnt = 0;
    int v = 0;
    for(auto val : vT){
        while(v < (int)vS.size() && vS[v] <= K - L - val) ++v;
        cnt += v;
    }

    cout << cnt << '\n';
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int T = 1;
//    cin >> T;
    while(T--) testcase();

    return 0;
}

Compilation message

Main.cpp: In lambda function:
Main.cpp:33:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   33 |             for(auto [v, w] : adj[u]){
      |                      ^

Subtask #1
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 2 ms 760 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 67 ms 19332 KB Output is correct
8 Correct 79 ms 19532 KB Output is correct
9 Correct 66 ms 18272 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 2 ms 592 KB Output is correct
13 Correct 2 ms 592 KB Output is correct
14 Correct 44 ms 17840 KB Output is correct
15 Correct 142 ms 20460 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 592 KB Output is correct
18 Correct 82 ms 19740 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 592 KB Output is correct
22 Correct 2 ms 592 KB Output is correct
23 Correct 42 ms 17840 KB Output is correct
24 Correct 144 ms 20476 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 2 ms 592 KB Output is correct
27 Correct 74 ms 24748 KB Output is correct
28 Correct 75 ms 12636 KB Output is correct
29 Correct 59 ms 15968 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 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 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 508 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 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 1 ms 336 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 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 384 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 336 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 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 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 508 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 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 1 ms 336 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 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 384 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 336 KB Output is correct
33 Correct 2 ms 592 KB Output is correct
34 Correct 2 ms 592 KB Output is correct
35 Correct 1 ms 592 KB Output is correct
36 Correct 2 ms 592 KB Output is correct
37 Correct 2 ms 592 KB Output is correct
38 Correct 1 ms 592 KB Output is correct
39 Correct 2 ms 592 KB Output is correct
40 Correct 2 ms 592 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 2 ms 592 KB Output is correct
43 Correct 3 ms 760 KB Output is correct
44 Correct 2 ms 592 KB Output is correct
45 Correct 3 ms 764 KB Output is correct
46 Correct 3 ms 592 KB Output is correct
47 Correct 2 ms 592 KB Output is correct
48 Correct 2 ms 592 KB Output is correct
49 Correct 2 ms 336 KB Output is correct
50 Correct 1 ms 592 KB Output is correct
51 Correct 3 ms 592 KB Output is correct
52 Correct 2 ms 592 KB Output is correct
53 Correct 3 ms 592 KB Output is correct
54 Correct 2 ms 592 KB Output is correct
55 Correct 2 ms 592 KB Output is correct
56 Correct 2 ms 592 KB Output is correct
57 Correct 2 ms 592 KB Output is correct
58 Correct 2 ms 592 KB Output is correct

Subtask #4
47.0 / 47.0

# 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 2 ms 760 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 67 ms 19332 KB Output is correct
8 Correct 79 ms 19532 KB Output is correct
9 Correct 66 ms 18272 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 2 ms 592 KB Output is correct
13 Correct 2 ms 592 KB Output is correct
14 Correct 44 ms 17840 KB Output is correct
15 Correct 142 ms 20460 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 592 KB Output is correct
18 Correct 82 ms 19740 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 592 KB Output is correct
22 Correct 2 ms 592 KB Output is correct
23 Correct 42 ms 17840 KB Output is correct
24 Correct 144 ms 20476 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 2 ms 592 KB Output is correct
27 Correct 74 ms 24748 KB Output is correct
28 Correct 75 ms 12636 KB Output is correct
29 Correct 59 ms 15968 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 508 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 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 1 ms 336 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 336 KB Output is correct
62 Correct 2 ms 592 KB Output is correct
63 Correct 2 ms 592 KB Output is correct
64 Correct 1 ms 592 KB Output is correct
65 Correct 2 ms 592 KB Output is correct
66 Correct 2 ms 592 KB Output is correct
67 Correct 1 ms 592 KB Output is correct
68 Correct 2 ms 592 KB Output is correct
69 Correct 2 ms 592 KB Output is correct
70 Correct 1 ms 336 KB Output is correct
71 Correct 2 ms 592 KB Output is correct
72 Correct 3 ms 760 KB Output is correct
73 Correct 2 ms 592 KB Output is correct
74 Correct 3 ms 764 KB Output is correct
75 Correct 3 ms 592 KB Output is correct
76 Correct 2 ms 592 KB Output is correct
77 Correct 2 ms 592 KB Output is correct
78 Correct 2 ms 336 KB Output is correct
79 Correct 1 ms 592 KB Output is correct
80 Correct 3 ms 592 KB Output is correct
81 Correct 2 ms 592 KB Output is correct
82 Correct 3 ms 592 KB Output is correct
83 Correct 2 ms 592 KB Output is correct
84 Correct 2 ms 592 KB Output is correct
85 Correct 2 ms 592 KB Output is correct
86 Correct 2 ms 592 KB Output is correct
87 Correct 2 ms 592 KB Output is correct
88 Correct 88 ms 15688 KB Output is correct
89 Correct 87 ms 15664 KB Output is correct
90 Correct 90 ms 21276 KB Output is correct
91 Correct 35 ms 5968 KB Output is correct
92 Correct 48 ms 6028 KB Output is correct
93 Correct 42 ms 17864 KB Output is correct
94 Correct 40 ms 17848 KB Output is correct
95 Correct 142 ms 20780 KB Output is correct
96 Correct 115 ms 16840 KB Output is correct
97 Correct 122 ms 19808 KB Output is correct
98 Correct 119 ms 19656 KB Output is correct
99 Correct 66 ms 19808 KB Output is correct
100 Correct 68 ms 19808 KB Output is correct
101 Correct 36 ms 6028 KB Output is correct
102 Correct 35 ms 5968 KB Output is correct
103 Correct 40 ms 17840 KB Output is correct
104 Correct 39 ms 17836 KB Output is correct
105 Correct 148 ms 20772 KB Output is correct
106 Correct 189 ms 20780 KB Output is correct
107 Correct 185 ms 24364 KB Output is correct
108 Correct 177 ms 24620 KB Output is correct
109 Correct 72 ms 12460 KB Output is correct
110 Correct 89 ms 16052 KB Output is correct
111 Correct 100 ms 19008 KB Output is correct
112 Correct 104 ms 19072 KB Output is correct