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Submission #1102557

# Submission time Handle Problem Language Result Execution time Memory
1102557 2024-10-18T09:31:38 Z vjudge1 Travelling Merchant (CCO21_day2problem1) C++17
25 / 25
 135 ms 24512 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pii pair <int, int>
#define fi first
#define se second
#define mp make_pair

const int NM = 2e5, inf = 1e18;

int N, M, u[NM+5], v[NM+5], r[NM+5], p[NM+5], od[NM+5];
vector <int> g[NM+5];
int deg[NM+5];
stack <int> st;
bool del[NM+5];
priority_queue <pair <pii, pii> > pq;
int ans[NM+5];

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

    cin >> N >> M;
    for (int i = 1; i <= M; i++){
        cin >> u[i] >> v[i] >> r[i] >> p[i];
        g[v[i]].push_back(i);
        deg[u[i]]++;
        od[i] = i;
    }
    sort(od+1, od+1+M, [&](int i, int j){
        return r[i] > r[j];
    });
    for (int i = 1; i <= N; i++)
        if (!deg[i]) st.push(i);
    while (!st.empty()){
        int x = st.top(); st.pop();
        for (int i : g[x]){
            del[i] = 1;
            deg[u[i]]--;
            if (!deg[u[i]]) st.push(u[i]);
        }
    }
    for (int i = 1; i <= N; i++)
        ans[i] = +inf;
    for (int t = 1; t <= M; t++){
        int i = od[t];
        if (del[i]) continue;
        del[i] = 1;
        ans[u[i]] = min(ans[u[i]], r[i]);
        deg[u[i]]--;
        if (deg[u[i]]) continue;
        st.push(u[i]);
        while (!st.empty()){
            int x = st.top(); st.pop();
            for (int i : g[x]){
                if (del[i]) continue;
                del[i] = 1;
                ans[u[i]] = min(ans[u[i]], max(ans[v[i]]-p[i], r[i]));
                deg[u[i]]--;
                if (!deg[u[i]]) st.push(u[i]);
            }
        }
    }
    for (int i = 1; i <= N; i++)
        cout << (ans[i] == +inf ? -1 : ans[i]) << ' ';
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14672 KB Output is correct
2 Correct 3 ms 14672 KB Output is correct
3 Correct 3 ms 14672 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 3 ms 14672 KB Output is correct
6 Correct 3 ms 14672 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 3 ms 14928 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 3 ms 14672 KB Output is correct
11 Correct 3 ms 14672 KB Output is correct
12 Correct 3 ms 14672 KB Output is correct
13 Correct 3 ms 14672 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 21640 KB Output is correct
2 Correct 116 ms 21576 KB Output is correct
3 Correct 60 ms 18760 KB Output is correct
4 Correct 17 ms 17232 KB Output is correct
5 Correct 93 ms 20808 KB Output is correct
6 Correct 82 ms 20808 KB Output is correct
7 Correct 56 ms 18172 KB Output is correct
8 Correct 117 ms 24392 KB Output is correct
9 Correct 112 ms 23368 KB Output is correct
10 Correct 65 ms 18044 KB Output is correct
11 Correct 90 ms 20296 KB Output is correct
12 Correct 41 ms 18512 KB Output is correct
13 Correct 41 ms 17844 KB Output is correct
14 Correct 116 ms 24400 KB Output is correct
15 Correct 109 ms 24392 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14672 KB Output is correct
2 Correct 3 ms 14672 KB Output is correct
3 Correct 3 ms 14672 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 3 ms 14672 KB Output is correct
6 Correct 3 ms 14672 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 3 ms 14928 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 3 ms 14672 KB Output is correct
11 Correct 3 ms 14672 KB Output is correct
12 Correct 3 ms 14672 KB Output is correct
13 Correct 3 ms 14672 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 114 ms 21640 KB Output is correct
16 Correct 116 ms 21576 KB Output is correct
17 Correct 60 ms 18760 KB Output is correct
18 Correct 17 ms 17232 KB Output is correct
19 Correct 93 ms 20808 KB Output is correct
20 Correct 82 ms 20808 KB Output is correct
21 Correct 56 ms 18172 KB Output is correct
22 Correct 117 ms 24392 KB Output is correct
23 Correct 112 ms 23368 KB Output is correct
24 Correct 65 ms 18044 KB Output is correct
25 Correct 90 ms 20296 KB Output is correct
26 Correct 41 ms 18512 KB Output is correct
27 Correct 41 ms 17844 KB Output is correct
28 Correct 116 ms 24400 KB Output is correct
29 Correct 109 ms 24392 KB Output is correct
30 Correct 101 ms 21576 KB Output is correct
31 Correct 109 ms 21684 KB Output is correct
32 Correct 52 ms 18756 KB Output is correct
33 Correct 17 ms 17176 KB Output is correct
34 Correct 92 ms 20808 KB Output is correct
35 Correct 96 ms 20824 KB Output is correct
36 Correct 64 ms 18256 KB Output is correct
37 Correct 116 ms 24392 KB Output is correct
38 Correct 97 ms 22856 KB Output is correct
39 Correct 53 ms 17980 KB Output is correct
40 Correct 85 ms 20368 KB Output is correct
41 Correct 49 ms 18232 KB Output is correct
42 Correct 35 ms 17852 KB Output is correct
43 Correct 134 ms 24392 KB Output is correct
44 Correct 135 ms 24512 KB Output is correct
45 Correct 125 ms 24392 KB Output is correct
46 Correct 60 ms 21064 KB Output is correct
47 Correct 61 ms 20364 KB Output is correct
48 Correct 70 ms 20260 KB Output is correct
49 Correct 74 ms 20296 KB Output is correct
50 Correct 2 ms 14672 KB Output is correct