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Submission #1020510

# Submission time Handle Problem Language Result Execution time Memory
1020510 2024-07-12T06:14:29 Z vjudge1 Shortcut (IOI16_shortcut) C++17
0 / 100
 2 ms 2904 KB 
#include "shortcut.h"
#include <bits/stdc++.h>

using namespace std;

#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int)s.size()
#define s second 
#define f first 

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const ll inf = 1e18, N = 1e5;

vector<pll> g[N];

pll fnd(int x, int n) {
    priority_queue<pll> s;
    vector<ll> d(n, inf);
    d[x] = 0;
    s.push({0, x});
    int mx = x;
    while (sz(s)) {
        auto [dt, u] = s.top();
        s.pop();
        if (-dt != d[u]) continue;
        if (d[u] > d[mx]) mx = u;
        for (auto [to, w]: g[u]) {
            if (d[to] > d[u] + w) {
                d[to] = d[u] + w;
                s.push({-d[to], to});
            }
        }
    }
    return {mx, d[mx]};
}

ll f(int n) {
    int x = fnd(0, n).f;
    return fnd(x, n).s;
}

long long find_shortcut(int n, std::vector<int> l, std::vector<int> d, int c) {
    for (int i = 0; i < n - 1; i++) {
        g[i].push_back({i + 1, l[i]});
        g[i + 1].push_back({i, l[i]});
    }
    for (int i = 0; i < n; i++) {
        g[i].push_back({i + n, d[i]});
        g[i + n].push_back({i, d[i]});
    }
    ll ans = inf;
    for (int x = 0; x < n; x++) {
        for (int y = x + 1; y < n; y++) {
            g[x].push_back({y, c});
            g[y].push_back({x, c});
            ans = min(ans, f(2 * n));
            g[x].pop_back();
            g[y].pop_back();
        }
    }
    return ans;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2904 KB n = 4, 80 is a correct answer
2 Correct 1 ms 2652 KB n = 9, 110 is a correct answer
3 Correct 1 ms 2652 KB n = 4, 21 is a correct answer
4 Correct 1 ms 2652 KB n = 3, 4 is a correct answer
5 Correct 2 ms 2652 KB n = 2, 62 is a correct answer
6 Correct 2 ms 2652 KB n = 2, 3 is a correct answer
7 Correct 2 ms 2652 KB n = 3, 29 is a correct answer
8 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
9 Correct 1 ms 2652 KB n = 2, 3 is a correct answer
10 Correct 2 ms 2652 KB n = 2, 2000000001 is a correct answer
11 Correct 1 ms 2652 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 2652 KB n = 3, 3000000000 is a correct answer
14 Correct 1 ms 2652 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 2652 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 2652 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 2652 KB n = 10, 1000000343 is a correct answer
18 Correct 2 ms 2652 KB n = 10, 3189 is a correct answer
19 Incorrect 1 ms 2652 KB n = 10, incorrect answer: jury 7000000000 vs contestant 6000000000
20 Halted 0 ms 0 KB -