oj.uz

Submission #718078

# Submission time Handle Problem Language Result Execution time Memory
718078 2023-04-03T09:44:19 Z Johann Toll (BOI17_toll) C++14
49 / 100
 3000 ms 7856 KB 
// Gets sub1-sub4 with more or less naive approach
#include <bits/stdc++.h>
using namespace std;

#define pii pair<int,int>
#define vb vector<bool>
#define vi vector<int>
#define vpii vector<pii>
#define vvi vector<vi>
#define vvpii vector<vpii>
#define sz(x) (int) (x).size()
#define all(x) (x).begin(), (x).end()
#define F0R(i,n) for (int i = 0; i < (n); ++i)

const int MAXN = 50005;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int k,n,m,o;
    cin >> k >> n >> m >> o;
    vvpii adj(n);
    F0R(i,m) {
        int a,b,t;
        cin >> a >> b >> t;
        adj[a].push_back({b,t});
    }
    vi ans(o, -1);
    vvpii orders(n);
    F0R(i,o) {
        int a,b;
        cin >> a >> b;
        if (a <= b)
            orders[a].push_back({ b, i });
    }
    F0R(i,n) { sort(all(orders[i])); reverse(all(orders[i])); }

    F0R(a,n) {
        int first = a;
        vi buffer(2*k+1, INT_MAX);
        buffer[0] = 0;
        while (sz(orders[a]) > 0) {
            if (first == orders[a].back().first) {
                ans[orders[a].back().second] = (buffer[0] == INT_MAX) ? -1 : buffer[0];
                orders[a].pop_back();
            } else {
                if (buffer[0] != INT_MAX) {
                    for (pii e : adj[first]) {
                        auto [u, t] = e;
                        buffer[u - first] = min(buffer[u-first], buffer[0] + t);
                    }
                }
                for (int i = 0; i < sz(buffer)-1; ++i) swap(buffer[i], buffer[i+1]);
                buffer.back() = INT_MAX;
                ++first;
            }
        }
    }

    for (int x : ans) cout << x << "\n";
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:51:30: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   51 |                         auto [u, t] = e;
      |                              ^

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3043 ms 5456 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 6116 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 4 ms 724 KB Output is correct
9 Correct 20 ms 5380 KB Output is correct
10 Correct 49 ms 7628 KB Output is correct
11 Correct 39 ms 6140 KB Output is correct
12 Correct 32 ms 5656 KB Output is correct
13 Correct 52 ms 7108 KB Output is correct
14 Correct 34 ms 4940 KB Output is correct
15 Correct 26 ms 4300 KB Output is correct
16 Correct 27 ms 4248 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 2 ms 328 KB Output is correct
8 Correct 3 ms 508 KB Output is correct
9 Correct 3 ms 468 KB Output is correct
10 Correct 26 ms 5084 KB Output is correct
11 Correct 77 ms 5868 KB Output is correct
12 Correct 98 ms 7268 KB Output is correct
13 Correct 129 ms 7828 KB Output is correct
14 Correct 90 ms 6532 KB Output is correct
15 Correct 51 ms 4092 KB Output is correct
16 Correct 45 ms 4096 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 2 ms 328 KB Output is correct
8 Correct 3 ms 508 KB Output is correct
9 Correct 3 ms 468 KB Output is correct
10 Correct 26 ms 5084 KB Output is correct
11 Correct 77 ms 5868 KB Output is correct
12 Correct 98 ms 7268 KB Output is correct
13 Correct 129 ms 7828 KB Output is correct
14 Correct 90 ms 6532 KB Output is correct
15 Correct 51 ms 4092 KB Output is correct
16 Correct 45 ms 4096 KB Output is correct
17 Correct 1101 ms 5888 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 3 ms 468 KB Output is correct
24 Correct 6 ms 468 KB Output is correct
25 Correct 11 ms 468 KB Output is correct
26 Correct 11 ms 596 KB Output is correct
27 Correct 166 ms 5168 KB Output is correct
28 Correct 1448 ms 7356 KB Output is correct
29 Correct 1594 ms 7856 KB Output is correct
30 Correct 976 ms 6592 KB Output is correct

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3043 ms 5456 KB Time limit exceeded
2 Halted 0 ms 0 KB -