oj.uz

Submission #507301

# Submission time Handle Problem Language Result Execution time Memory
507301 2022-01-12T10:43:24 Z Aldas25 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 623 ms 28720 KB 
#include <bits/stdc++.h>

using namespace std;

#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(nullptr)
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define pb push_back
#define f first
#define s second
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vii;

const int MAXN = 30100;
const int MAXC = (int) (sqrt(MAXN));

int n, m, c;
int b[MAXN], p[MAXN];
vi jumps[MAXN];
int d[MAXN][MAXC];
bool vis[MAXN][MAXC];
//vector<pair<pii, int>> adj[MAXN][MAXC];
vector<pair<pii, int>> adj;

void calcAdj (int pos, int j) {
    adj.clear();

    if (j > 0) {
        adj.pb({{pos,0}, 0});

        if (pos+j < n)
            adj.pb({{pos+j, j}, 1});
        if (pos-j >= 0)
            adj.pb({{pos-j, j}, 1});
    } else {
        for (int j : jumps[pos]) {
            if (j <= c) {
                adj.pb({{pos, j}, 0});
            } else {
                FOR(x, -c, c) {
                    int newP = pos + x * j;
                    if (0 <= newP && newP < n)
                        adj.pb({{newP, 0}, abs(x)});
                }
            }
        }
    }
}

void dijkstra () {
    FOR(i, 0, n-1) FOR(j, 0, c) d[i][j] = -1;
    d[b[0]][0] = 0;
    priority_queue<pair<int, pii>, vector<pair<int, pii>>, greater<pair<int, pii>>> q;
    q.push({0, {b[0], 0}});

    while (!q.empty()) {
        auto v = q.top().s;
        q.pop();
        int pos = v.f, j = v.s;
        if (vis[pos][j]) continue;
        vis[pos][j] = true;
        //cout << " pos = " << pos << " j = "<< j << endl;

        calcAdj (pos, j);

        for (auto e : adj) {
            int w = e.s;
            int nPos = e.f.f, nJ = e.f.s;
            if (d[nPos][nJ] == -1 || d[nPos][nJ] > d[pos][j] + w) {
                d[nPos][nJ] = d[pos][j] + w;
                q.push({d[nPos][nJ], {nPos, nJ}});
            }
        }
    }
}

int main()
{
    FAST_IO;

    cin >> n >> m;
    c = sqrt(n);
    FOR(i, 0, m-1) cin >> b[i] >> p[i];
    FOR(i, 0, m-1) jumps[b[i]].pb(p[i]);

    /*FOR(pos, 0, n-1) {
        FOR(j, 0, c) {
            adj[pos][j].pb({{pos,0}, 0});

            if (pos+j < n)
                adj[pos][j].pb({{pos+j, j}, 1});
            if (pos-j >= 0)
                adj[pos][j].pb({{pos-j, j}, 1});
        }

        for (int j : jumps[pos]) {
            if (j <= c) {
                adj[pos][0].pb({{pos, j}, 0});
            } else {
                FOR(x, -c, c) {
                    int newP = pos + x * j;
                    if (0 <= newP && newP < n)
                        adj[pos][0].pb({{newP, 0}, abs(x)});
                }
            }
        }
    }*/

    dijkstra ();

    cout << d[b[1]][0] << "\n";

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 1 ms 1100 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1100 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 2 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 2 ms 1612 KB Output is correct
18 Correct 2 ms 2252 KB Output is correct
19 Correct 1 ms 2380 KB Output is correct
20 Correct 3 ms 2764 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 2252 KB Output is correct
23 Correct 2 ms 2384 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct
25 Correct 2 ms 2764 KB Output is correct
26 Correct 2 ms 2764 KB Output is correct
27 Correct 2 ms 2764 KB Output is correct
28 Correct 4 ms 2764 KB Output is correct
29 Correct 9 ms 2776 KB Output is correct
30 Correct 4 ms 2636 KB Output is correct
31 Correct 6 ms 2764 KB Output is correct
32 Correct 3 ms 2764 KB Output is correct
33 Correct 15 ms 2956 KB Output is correct
34 Correct 14 ms 2892 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 1000 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 1008 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 1 ms 1100 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 2 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 3 ms 1612 KB Output is correct
18 Correct 2 ms 2252 KB Output is correct
19 Correct 2 ms 2380 KB Output is correct
20 Correct 2 ms 2764 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 2252 KB Output is correct
23 Correct 2 ms 2380 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct
25 Correct 2 ms 2764 KB Output is correct
26 Correct 2 ms 2764 KB Output is correct
27 Correct 2 ms 2764 KB Output is correct
28 Correct 3 ms 2764 KB Output is correct
29 Correct 8 ms 2764 KB Output is correct
30 Correct 4 ms 2636 KB Output is correct
31 Correct 6 ms 2764 KB Output is correct
32 Correct 4 ms 2764 KB Output is correct
33 Correct 13 ms 2892 KB Output is correct
34 Correct 14 ms 2912 KB Output is correct
35 Correct 15 ms 2636 KB Output is correct
36 Correct 3 ms 1996 KB Output is correct
37 Correct 16 ms 3108 KB Output is correct
38 Correct 17 ms 3276 KB Output is correct
39 Correct 16 ms 3288 KB Output is correct
40 Correct 16 ms 3296 KB Output is correct
41 Correct 16 ms 3292 KB Output is correct
42 Correct 6 ms 3660 KB Output is correct
43 Correct 6 ms 3660 KB Output is correct
44 Correct 5 ms 3644 KB Output is correct
45 Correct 20 ms 3328 KB Output is correct
46 Correct 20 ms 3276 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 1 ms 1100 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 3 ms 1612 KB Output is correct
18 Correct 1 ms 2252 KB Output is correct
19 Correct 1 ms 2380 KB Output is correct
20 Correct 2 ms 2764 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 2252 KB Output is correct
23 Correct 3 ms 2380 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct
25 Correct 3 ms 2764 KB Output is correct
26 Correct 3 ms 2724 KB Output is correct
27 Correct 2 ms 2764 KB Output is correct
28 Correct 4 ms 2704 KB Output is correct
29 Correct 9 ms 2756 KB Output is correct
30 Correct 4 ms 2636 KB Output is correct
31 Correct 6 ms 2764 KB Output is correct
32 Correct 3 ms 2764 KB Output is correct
33 Correct 13 ms 2892 KB Output is correct
34 Correct 13 ms 2892 KB Output is correct
35 Correct 12 ms 2756 KB Output is correct
36 Correct 3 ms 1996 KB Output is correct
37 Correct 15 ms 3132 KB Output is correct
38 Correct 17 ms 3184 KB Output is correct
39 Correct 17 ms 3280 KB Output is correct
40 Correct 20 ms 3288 KB Output is correct
41 Correct 19 ms 3276 KB Output is correct
42 Correct 7 ms 3648 KB Output is correct
43 Correct 6 ms 3660 KB Output is correct
44 Correct 5 ms 3644 KB Output is correct
45 Correct 21 ms 3400 KB Output is correct
46 Correct 21 ms 3276 KB Output is correct
47 Correct 87 ms 12368 KB Output is correct
48 Correct 11 ms 17636 KB Output is correct
49 Correct 12 ms 18956 KB Output is correct
50 Correct 11 ms 20556 KB Output is correct
51 Correct 85 ms 28076 KB Output is correct
52 Correct 80 ms 27996 KB Output is correct
53 Correct 35 ms 27524 KB Output is correct
54 Correct 15 ms 26316 KB Output is correct
55 Correct 15 ms 26372 KB Output is correct
56 Correct 22 ms 27812 KB Output is correct
57 Correct 92 ms 26436 KB Output is correct
58 Correct 32 ms 27460 KB Output is correct
59 Correct 34 ms 27612 KB Output is correct
60 Correct 44 ms 27504 KB Output is correct
61 Correct 31 ms 27572 KB Output is correct
62 Correct 72 ms 27896 KB Output is correct
63 Correct 87 ms 28496 KB Output is correct
64 Correct 121 ms 28544 KB Output is correct
65 Correct 280 ms 28720 KB Output is correct
66 Correct 606 ms 28688 KB Output is correct
67 Correct 623 ms 28636 KB Output is correct