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답안 #1110804

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1110804 2024-11-10T14:13:13 Z CodeLakVN Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 161 ms 71988 KB 
#include <bits/stdc++.h>
using namespace std;

#define Task "SKY"
#define ll long long
#define pb push_back
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FOD(i, a, b) for (int i = (a); i >= (b); i--)
#define F first
#define S second

typedef pair<int, int> ii;

const int N = 5e4 + 6;
const int INF = 1e9;
const int MOD = 1e9 + 7;

template<class X, class Y>
    bool minimize(X &x, Y y) {
        if (x > y) {
            x = y;
            return true;
        } else return false;
    }

template<class X, class Y>
    bool maximize(X &x, Y y) {
        if (x < y) {
            x = y;
            return true;
        } else return false;
    }

int n, m;
vector<set<int>> powers;
int dist[N];
vector<pair<int, int>> adj[N];
int s, e;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    if (fopen(Task".INP", "r")) {
        freopen(Task".INP", "r", stdin);
        freopen(Task".OUT", "w", stdout);
    }

    cin >> n >> m;
    powers.resize(n + 1);
    FOR(i, 0, m - 1) {
        int building, power;
        cin >> building >> power;
        powers[building].insert(power);

        if (i == 0) s = building;
        if (i == 1) e = building;
    }

    FOR(i, 0, n - 1) {
        for (int power : powers[i]) {
            FOR(j, 1, (n - i) / power) {
                int nxt = i + j * power;
                adj[i].push_back({nxt, j});
                if (powers[nxt].count(power)) break;
            }
            FOR(j, 1, i / power) {
                int nxt = i - j * power;
                if (nxt < 0) break;
                adj[i].push_back({nxt, j});
                if (powers[nxt].count(power)) break;
            }
        }
    }

    priority_queue<ii, vector<ii>, greater<ii>> pq;
    memset(dist, 0x3f, sizeof(dist));
    pq.push({0, s});
    dist[s] = 0;
    while(!pq.empty()) {
        auto [d, u] = pq.top();
        pq.pop();

        if (u == e) {
            cout << d;
            return 0;
        }

        if (d > dist[u]) continue;
        for (auto [v, w] : adj[u]) if (minimize(dist[v], dist[u] + w)) {
            pq.push({dist[v], v});
        }
    }
    cout << -1;

    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:44:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |         freopen(Task".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:45:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |         freopen(Task".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1616 KB Output is correct
2 Correct 2 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 2 ms 1616 KB Output is correct
5 Correct 2 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1616 KB Output is correct
2 Correct 2 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 2 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 2 ms 1616 KB Output is correct
8 Correct 1 ms 1616 KB Output is correct
9 Correct 2 ms 1616 KB Output is correct
10 Correct 2 ms 1616 KB Output is correct
11 Correct 2 ms 1872 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 2 ms 1616 KB Output is correct
14 Correct 2 ms 1872 KB Output is correct
15 Correct 3 ms 1872 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1616 KB Output is correct
2 Correct 2 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 2 ms 1616 KB Output is correct
5 Correct 2 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 2 ms 1616 KB Output is correct
8 Correct 1 ms 1616 KB Output is correct
9 Correct 2 ms 1616 KB Output is correct
10 Correct 2 ms 1872 KB Output is correct
11 Correct 3 ms 1872 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 2 ms 1616 KB Output is correct
14 Correct 3 ms 2044 KB Output is correct
15 Correct 3 ms 2040 KB Output is correct
16 Correct 2 ms 1872 KB Output is correct
17 Correct 3 ms 2128 KB Output is correct
18 Correct 2 ms 1872 KB Output is correct
19 Correct 2 ms 1872 KB Output is correct
20 Correct 3 ms 1848 KB Output is correct
21 Correct 2 ms 1872 KB Output is correct
22 Correct 2 ms 1872 KB Output is correct
23 Correct 2 ms 1872 KB Output is correct
24 Correct 3 ms 2128 KB Output is correct
25 Correct 2 ms 2128 KB Output is correct
26 Correct 2 ms 1872 KB Output is correct
27 Correct 2 ms 1872 KB Output is correct
28 Correct 3 ms 2300 KB Output is correct
29 Correct 4 ms 2812 KB Output is correct
30 Correct 3 ms 2128 KB Output is correct
31 Correct 3 ms 2384 KB Output is correct
32 Correct 2 ms 2128 KB Output is correct
33 Correct 6 ms 3408 KB Output is correct
34 Correct 6 ms 3408 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1616 KB Output is correct
2 Correct 2 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 2 ms 1616 KB Output is correct
5 Correct 2 ms 1616 KB Output is correct
6 Correct 1 ms 1616 KB Output is correct
7 Correct 2 ms 1616 KB Output is correct
8 Correct 1 ms 1616 KB Output is correct
9 Correct 1 ms 1616 KB Output is correct
10 Correct 2 ms 1616 KB Output is correct
11 Correct 2 ms 1872 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 2 ms 1616 KB Output is correct
14 Correct 2 ms 1872 KB Output is correct
15 Correct 2 ms 1872 KB Output is correct
16 Correct 3 ms 1872 KB Output is correct
17 Correct 2 ms 2128 KB Output is correct
18 Correct 2 ms 1872 KB Output is correct
19 Correct 2 ms 1872 KB Output is correct
20 Correct 2 ms 1872 KB Output is correct
21 Correct 2 ms 1872 KB Output is correct
22 Correct 2 ms 1872 KB Output is correct
23 Correct 3 ms 1872 KB Output is correct
24 Correct 3 ms 2128 KB Output is correct
25 Correct 3 ms 2128 KB Output is correct
26 Correct 2 ms 1872 KB Output is correct
27 Correct 2 ms 1792 KB Output is correct
28 Correct 3 ms 2128 KB Output is correct
29 Correct 4 ms 2640 KB Output is correct
30 Correct 4 ms 2004 KB Output is correct
31 Correct 3 ms 2552 KB Output is correct
32 Correct 3 ms 2128 KB Output is correct
33 Correct 6 ms 3408 KB Output is correct
34 Correct 5 ms 3408 KB Output is correct
35 Correct 14 ms 3920 KB Output is correct
36 Correct 3 ms 2128 KB Output is correct
37 Correct 20 ms 4964 KB Output is correct
38 Correct 18 ms 4956 KB Output is correct
39 Correct 19 ms 4856 KB Output is correct
40 Correct 18 ms 4944 KB Output is correct
41 Correct 19 ms 5144 KB Output is correct
42 Correct 5 ms 2128 KB Output is correct
43 Correct 5 ms 1872 KB Output is correct
44 Correct 5 ms 2128 KB Output is correct
45 Correct 26 ms 8016 KB Output is correct
46 Correct 22 ms 7756 KB Output is correct

Subtask #5
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 1 ms 1616 KB Output is correct
4 Correct 2 ms 1616 KB Output is correct
5 Correct 2 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 2 ms 1616 KB Output is correct
8 Correct 1 ms 1792 KB Output is correct
9 Correct 2 ms 1616 KB Output is correct
10 Correct 2 ms 1616 KB Output is correct
11 Correct 2 ms 1872 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 2 ms 1616 KB Output is correct
14 Correct 4 ms 1872 KB Output is correct
15 Correct 2 ms 1872 KB Output is correct
16 Correct 2 ms 1872 KB Output is correct
17 Correct 3 ms 2080 KB Output is correct
18 Correct 2 ms 1872 KB Output is correct
19 Correct 2 ms 1924 KB Output is correct
20 Correct 2 ms 1872 KB Output is correct
21 Correct 2 ms 1872 KB Output is correct
22 Correct 2 ms 1872 KB Output is correct
23 Correct 2 ms 1872 KB Output is correct
24 Correct 2 ms 2128 KB Output is correct
25 Correct 2 ms 2044 KB Output is correct
26 Correct 2 ms 1872 KB Output is correct
27 Correct 2 ms 2040 KB Output is correct
28 Correct 3 ms 2128 KB Output is correct
29 Correct 4 ms 2640 KB Output is correct
30 Correct 3 ms 2128 KB Output is correct
31 Correct 3 ms 2384 KB Output is correct
32 Correct 3 ms 2128 KB Output is correct
33 Correct 8 ms 3408 KB Output is correct
34 Correct 5 ms 3408 KB Output is correct
35 Correct 14 ms 3920 KB Output is correct
36 Correct 3 ms 2300 KB Output is correct
37 Correct 15 ms 4688 KB Output is correct
38 Correct 17 ms 4944 KB Output is correct
39 Correct 17 ms 4824 KB Output is correct
40 Correct 24 ms 4944 KB Output is correct
41 Correct 18 ms 4936 KB Output is correct
42 Correct 4 ms 1872 KB Output is correct
43 Correct 4 ms 1872 KB Output is correct
44 Correct 5 ms 2060 KB Output is correct
45 Correct 19 ms 8016 KB Output is correct
46 Correct 20 ms 7760 KB Output is correct
47 Correct 34 ms 12684 KB Output is correct
48 Correct 14 ms 6360 KB Output is correct
49 Correct 12 ms 5436 KB Output is correct
50 Correct 10 ms 5200 KB Output is correct
51 Correct 28 ms 8796 KB Output is correct
52 Correct 25 ms 9292 KB Output is correct
53 Correct 11 ms 5588 KB Output is correct
54 Correct 4 ms 3664 KB Output is correct
55 Correct 5 ms 4064 KB Output is correct
56 Correct 10 ms 5456 KB Output is correct
57 Correct 17 ms 11856 KB Output is correct
58 Correct 9 ms 4468 KB Output is correct
59 Correct 9 ms 4456 KB Output is correct
60 Correct 10 ms 5324 KB Output is correct
61 Correct 10 ms 4560 KB Output is correct
62 Correct 17 ms 9728 KB Output is correct
63 Correct 66 ms 28348 KB Output is correct
64 Correct 70 ms 31260 KB Output is correct
65 Correct 91 ms 41148 KB Output is correct
66 Correct 161 ms 71732 KB Output is correct
67 Correct 142 ms 71988 KB Output is correct