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Submission #112282

# Submission time Handle Problem Language Result Execution time Memory
112282 2019-05-18T12:37:50 Z dolphingarlic Jakarta Skyscrapers (APIO15_skyscraper) C++14
22 / 100
 11 ms 7936 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define FOR(i, x, y) for (ll i = x; i < y; i++)
typedef long long ll;
using namespace std;

struct Doge {
    ll jumps, pos, size, direction;
};

vector<pair<ll, ll>> sky[300001];
bool visited[300001];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    fill(visited, visited + 300001, false);
    ll n, m;
    cin >> n >> m;
    ll size = 0, pos = 0;
    FOR(i, 0, m) {
        ll a, b;
        cin >> a >> b;
        sky[a].push_back({i, b});
        if (i == 0) size = b, pos = a;
    }

    queue<Doge> q;
    q.push({0, pos, size, 1});
    q.push({0, pos, size, 0});

    while (!q.empty()) {
        Doge curr = q.front();
        q.pop();
        bool push = true;
        // cout << curr.jumps << ' ' << curr.pos << ' ' << curr.size << ' '
        //      << curr.direction << '\n';

        if (curr.pos > -1 && curr.pos < n) {
            if (!visited[curr.pos]) {
                visited[curr.pos] = true;
                for (auto& i : sky[curr.pos]) {
                    if (i.first == 1) return cout << curr.jumps << '\n', 0;
                    if (i.second != curr.size) {
                        q.push(
                            {curr.jumps + 1, curr.pos + i.second, i.second, 1});
                        q.push(
                            {curr.jumps + 1, curr.pos - i.second, i.second, 0});
                    }
                }
            } else {
                for (auto& i : sky[curr.pos]) {
                    if (i.second == curr.size) push = false;
                }
            }

            if (push && curr.direction == 1)
                q.push({curr.jumps + 1, curr.pos + curr.size, curr.size, 1});
            else if (push && curr.direction == 0)
                q.push({curr.jumps + 1, curr.pos - curr.size, curr.size, 0});
        }
    }
    cout << "-1\n";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7680 KB Output is correct
2 Correct 8 ms 7680 KB Output is correct
3 Correct 8 ms 7680 KB Output is correct
4 Correct 8 ms 7680 KB Output is correct
5 Correct 7 ms 7680 KB Output is correct
6 Correct 7 ms 7680 KB Output is correct
7 Correct 8 ms 7680 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7680 KB Output is correct
2 Correct 8 ms 7680 KB Output is correct
3 Correct 8 ms 7680 KB Output is correct
4 Correct 8 ms 7724 KB Output is correct
5 Correct 8 ms 7680 KB Output is correct
6 Correct 7 ms 7680 KB Output is correct
7 Correct 8 ms 7680 KB Output is correct
8 Correct 7 ms 7680 KB Output is correct
9 Correct 8 ms 7680 KB Output is correct
10 Correct 8 ms 7680 KB Output is correct
11 Correct 7 ms 7808 KB Output is correct
12 Correct 7 ms 7680 KB Output is correct
13 Correct 8 ms 7808 KB Output is correct
14 Correct 8 ms 7936 KB Output is correct
15 Correct 8 ms 7936 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7680 KB Output is correct
2 Correct 8 ms 7680 KB Output is correct
3 Correct 7 ms 7680 KB Output is correct
4 Correct 8 ms 7680 KB Output is correct
5 Correct 7 ms 7680 KB Output is correct
6 Correct 7 ms 7680 KB Output is correct
7 Correct 7 ms 7680 KB Output is correct
8 Correct 7 ms 7680 KB Output is correct
9 Correct 8 ms 7680 KB Output is correct
10 Correct 8 ms 7680 KB Output is correct
11 Correct 8 ms 7808 KB Output is correct
12 Correct 8 ms 7808 KB Output is correct
13 Correct 8 ms 7808 KB Output is correct
14 Correct 8 ms 7936 KB Output is correct
15 Correct 8 ms 7808 KB Output is correct
16 Correct 8 ms 7680 KB Output is correct
17 Correct 8 ms 7808 KB Output is correct
18 Correct 8 ms 7680 KB Output is correct
19 Correct 8 ms 7808 KB Output is correct
20 Correct 8 ms 7680 KB Output is correct
21 Correct 9 ms 7680 KB Output is correct
22 Correct 9 ms 7680 KB Output is correct
23 Correct 8 ms 7680 KB Output is correct
24 Correct 8 ms 7808 KB Output is correct
25 Incorrect 8 ms 7808 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7680 KB Output is correct
2 Correct 8 ms 7680 KB Output is correct
3 Correct 8 ms 7680 KB Output is correct
4 Correct 8 ms 7680 KB Output is correct
5 Correct 7 ms 7680 KB Output is correct
6 Correct 7 ms 7680 KB Output is correct
7 Correct 7 ms 7680 KB Output is correct
8 Correct 8 ms 7680 KB Output is correct
9 Correct 7 ms 7680 KB Output is correct
10 Correct 8 ms 7680 KB Output is correct
11 Correct 7 ms 7808 KB Output is correct
12 Correct 8 ms 7680 KB Output is correct
13 Correct 8 ms 7680 KB Output is correct
14 Correct 8 ms 7808 KB Output is correct
15 Correct 8 ms 7936 KB Output is correct
16 Correct 8 ms 7680 KB Output is correct
17 Correct 8 ms 7808 KB Output is correct
18 Correct 7 ms 7680 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 8 ms 7720 KB Output is correct
21 Correct 8 ms 7680 KB Output is correct
22 Correct 7 ms 7680 KB Output is correct
23 Correct 8 ms 7680 KB Output is correct
24 Correct 8 ms 7808 KB Output is correct
25 Incorrect 11 ms 7680 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7680 KB Output is correct
2 Correct 7 ms 7716 KB Output is correct
3 Correct 7 ms 7680 KB Output is correct
4 Correct 7 ms 7680 KB Output is correct
5 Correct 7 ms 7680 KB Output is correct
6 Correct 7 ms 7680 KB Output is correct
7 Correct 7 ms 7680 KB Output is correct
8 Correct 7 ms 7680 KB Output is correct
9 Correct 8 ms 7680 KB Output is correct
10 Correct 8 ms 7680 KB Output is correct
11 Correct 8 ms 7808 KB Output is correct
12 Correct 8 ms 7680 KB Output is correct
13 Correct 8 ms 7808 KB Output is correct
14 Correct 8 ms 7936 KB Output is correct
15 Correct 8 ms 7936 KB Output is correct
16 Correct 7 ms 7680 KB Output is correct
17 Correct 8 ms 7808 KB Output is correct
18 Correct 7 ms 7680 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 8 ms 7808 KB Output is correct
21 Correct 7 ms 7680 KB Output is correct
22 Correct 8 ms 7680 KB Output is correct
23 Correct 8 ms 7680 KB Output is correct
24 Correct 8 ms 7808 KB Output is correct
25 Incorrect 9 ms 7808 KB Output isn't correct
26 Halted 0 ms 0 KB -