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Submission #1110659

# Submission time Handle Problem Language Result Execution time Memory
1110659 2024-11-10T07:11:24 Z trandangquang Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 348 ms 26828 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 3e4+5;
const int inf = 1e9;

struct node {
    int dist, pos, jump;
    bool operator < (const node &o) const {
        return dist > o.dist;
    }
};

int n, m, b[N], p[N], d[N][200];
vector <int> pos[N];

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> n >> m;
    int sqrtn = sqrt(n);
    for(int i = 0; i < m; ++i) {
        cin >> b[i] >> p[i];
        pos[b[i]].emplace_back(p[i]);
    }

    int ans = inf;
    priority_queue <node> pq;
    memset(d, 0x3f, sizeof(d));
    d[b[0]][0] = 0;
    pq.push({0, b[0], 0});

    while(pq.size()) {
        node x = pq.top(); pq.pop();
        if(x.pos == b[1]) ans = min(ans, x.dist);
        if(x.dist > d[x.pos][x.jump]) continue;

        if(x.jump == 0) {
            for(int i:pos[x.pos]) {
                if(i <= sqrtn) {
                    if(x.dist < d[x.pos][i]) {  
                        d[x.pos][i] = x.dist;
                        pq.push({x.dist, x.pos, i});
                    }
                }
                else {
                    for(int j = 0; x.pos + j*i < n; ++j) {
                        if(x.pos + j*i >= n) break;
                        if(x.dist + j < d[x.pos + i*j][0]) {
                            d[x.pos + i*j][0] = x.dist + j;
                            pq.push({x.dist+j, x.pos+i*j, 0});
                        }
                    }

                    for(int j = 0; x.pos - i*j >= 0; ++j) {
                        if(x.pos - i*j < 0) break;
                        if(x.dist + j < d[x.pos - i*j][0]) {
                            d[x.pos-i*j][0] = x.dist + j;
                            pq.push({x.dist+j, x.pos-i*j, 0});
                        }
                    }
                }
            }
        }
        else {
            if(x.jump + x.pos < n and d[x.jump+x.pos][x.jump] > x.dist+1) {
                d[x.jump+x.pos][x.jump] = x.dist+1;
                pq.push({x.dist+1, x.jump+x.pos, x.jump});
            }
            
            if(x.pos-x.jump >= 0 and d[x.pos-x.jump][x.jump] > x.dist+1) {
                d[x.pos-x.jump][x.jump] = x.dist+1;
                pq.push({x.dist+1, x.pos-x.jump, x.jump});
            }

            if(x.dist < d[x.pos][0]) {
                d[x.pos][0] = x.dist;
                pq.push({x.dist, x.pos, 0});
            }
        }
    }

    if(ans == inf) cout << -1;
    else cout << ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 24656 KB Output is correct
2 Correct 5 ms 24656 KB Output is correct
3 Correct 5 ms 24656 KB Output is correct
4 Correct 6 ms 24656 KB Output is correct
5 Correct 5 ms 24668 KB Output is correct
6 Correct 5 ms 24656 KB Output is correct
7 Correct 5 ms 24456 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 24656 KB Output is correct
2 Correct 6 ms 24656 KB Output is correct
3 Correct 5 ms 24656 KB Output is correct
4 Correct 5 ms 24656 KB Output is correct
5 Correct 4 ms 24460 KB Output is correct
6 Correct 6 ms 24672 KB Output is correct
7 Correct 7 ms 24824 KB Output is correct
8 Correct 5 ms 24656 KB Output is correct
9 Correct 5 ms 24656 KB Output is correct
10 Correct 4 ms 24656 KB Output is correct
11 Correct 5 ms 24656 KB Output is correct
12 Correct 5 ms 24656 KB Output is correct
13 Correct 4 ms 24824 KB Output is correct
14 Correct 5 ms 24656 KB Output is correct
15 Correct 5 ms 24656 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 24656 KB Output is correct
2 Correct 4 ms 24656 KB Output is correct
3 Correct 4 ms 24656 KB Output is correct
4 Correct 7 ms 24656 KB Output is correct
5 Correct 7 ms 24656 KB Output is correct
6 Correct 7 ms 24456 KB Output is correct
7 Correct 7 ms 24656 KB Output is correct
8 Correct 6 ms 24656 KB Output is correct
9 Correct 6 ms 24656 KB Output is correct
10 Correct 6 ms 24656 KB Output is correct
11 Correct 5 ms 24520 KB Output is correct
12 Correct 7 ms 24824 KB Output is correct
13 Correct 4 ms 24656 KB Output is correct
14 Correct 4 ms 24656 KB Output is correct
15 Correct 9 ms 24460 KB Output is correct
16 Correct 5 ms 24656 KB Output is correct
17 Correct 4 ms 24740 KB Output is correct
18 Correct 4 ms 24532 KB Output is correct
19 Correct 5 ms 24824 KB Output is correct
20 Correct 5 ms 24656 KB Output is correct
21 Correct 5 ms 24504 KB Output is correct
22 Correct 6 ms 24536 KB Output is correct
23 Correct 9 ms 24668 KB Output is correct
24 Correct 5 ms 24656 KB Output is correct
25 Correct 6 ms 24588 KB Output is correct
26 Correct 4 ms 24656 KB Output is correct
27 Correct 4 ms 24544 KB Output is correct
28 Correct 8 ms 24656 KB Output is correct
29 Correct 8 ms 24704 KB Output is correct
30 Correct 5 ms 24656 KB Output is correct
31 Correct 6 ms 24656 KB Output is correct
32 Correct 5 ms 24656 KB Output is correct
33 Correct 9 ms 24656 KB Output is correct
34 Correct 10 ms 24656 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 24656 KB Output is correct
2 Correct 5 ms 24656 KB Output is correct
3 Correct 5 ms 24656 KB Output is correct
4 Correct 5 ms 24456 KB Output is correct
5 Correct 5 ms 24400 KB Output is correct
6 Correct 5 ms 24604 KB Output is correct
7 Correct 6 ms 24656 KB Output is correct
8 Correct 7 ms 24656 KB Output is correct
9 Correct 6 ms 24656 KB Output is correct
10 Correct 5 ms 24656 KB Output is correct
11 Correct 6 ms 24540 KB Output is correct
12 Correct 5 ms 24656 KB Output is correct
13 Correct 7 ms 24656 KB Output is correct
14 Correct 8 ms 24604 KB Output is correct
15 Correct 9 ms 24668 KB Output is correct
16 Correct 11 ms 24656 KB Output is correct
17 Correct 8 ms 24656 KB Output is correct
18 Correct 5 ms 24656 KB Output is correct
19 Correct 7 ms 24656 KB Output is correct
20 Correct 5 ms 24656 KB Output is correct
21 Correct 6 ms 24656 KB Output is correct
22 Correct 5 ms 24672 KB Output is correct
23 Correct 4 ms 24656 KB Output is correct
24 Correct 6 ms 24656 KB Output is correct
25 Correct 5 ms 24656 KB Output is correct
26 Correct 5 ms 24656 KB Output is correct
27 Correct 5 ms 24656 KB Output is correct
28 Correct 8 ms 24632 KB Output is correct
29 Correct 9 ms 24656 KB Output is correct
30 Correct 8 ms 24656 KB Output is correct
31 Correct 10 ms 24828 KB Output is correct
32 Correct 8 ms 24656 KB Output is correct
33 Correct 12 ms 24784 KB Output is correct
34 Correct 12 ms 24668 KB Output is correct
35 Correct 13 ms 25336 KB Output is correct
36 Correct 10 ms 24656 KB Output is correct
37 Correct 13 ms 25168 KB Output is correct
38 Correct 14 ms 25284 KB Output is correct
39 Correct 15 ms 25424 KB Output is correct
40 Correct 16 ms 25424 KB Output is correct
41 Correct 15 ms 25480 KB Output is correct
42 Correct 10 ms 25168 KB Output is correct
43 Correct 11 ms 25168 KB Output is correct
44 Correct 15 ms 25336 KB Output is correct
45 Correct 15 ms 25424 KB Output is correct
46 Correct 13 ms 25424 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 24668 KB Output is correct
2 Correct 6 ms 24656 KB Output is correct
3 Correct 5 ms 24656 KB Output is correct
4 Correct 5 ms 24656 KB Output is correct
5 Correct 5 ms 24656 KB Output is correct
6 Correct 5 ms 24656 KB Output is correct
7 Correct 5 ms 24884 KB Output is correct
8 Correct 5 ms 24668 KB Output is correct
9 Correct 6 ms 24484 KB Output is correct
10 Correct 7 ms 24656 KB Output is correct
11 Correct 8 ms 24604 KB Output is correct
12 Correct 6 ms 24656 KB Output is correct
13 Correct 5 ms 24656 KB Output is correct
14 Correct 6 ms 24656 KB Output is correct
15 Correct 5 ms 24488 KB Output is correct
16 Correct 4 ms 24656 KB Output is correct
17 Correct 10 ms 24644 KB Output is correct
18 Correct 14 ms 24512 KB Output is correct
19 Correct 7 ms 24656 KB Output is correct
20 Correct 5 ms 24656 KB Output is correct
21 Correct 4 ms 24656 KB Output is correct
22 Correct 5 ms 24656 KB Output is correct
23 Correct 5 ms 24664 KB Output is correct
24 Correct 5 ms 24656 KB Output is correct
25 Correct 9 ms 24656 KB Output is correct
26 Correct 9 ms 24672 KB Output is correct
27 Correct 7 ms 24656 KB Output is correct
28 Correct 6 ms 24736 KB Output is correct
29 Correct 8 ms 24660 KB Output is correct
30 Correct 9 ms 24656 KB Output is correct
31 Correct 11 ms 24668 KB Output is correct
32 Correct 9 ms 24656 KB Output is correct
33 Correct 11 ms 24656 KB Output is correct
34 Correct 9 ms 24656 KB Output is correct
35 Correct 10 ms 25168 KB Output is correct
36 Correct 6 ms 24656 KB Output is correct
37 Correct 12 ms 25168 KB Output is correct
38 Correct 12 ms 25424 KB Output is correct
39 Correct 12 ms 25424 KB Output is correct
40 Correct 13 ms 25476 KB Output is correct
41 Correct 11 ms 25424 KB Output is correct
42 Correct 8 ms 25168 KB Output is correct
43 Correct 8 ms 25180 KB Output is correct
44 Correct 10 ms 25168 KB Output is correct
45 Correct 12 ms 25424 KB Output is correct
46 Correct 14 ms 25424 KB Output is correct
47 Correct 29 ms 25940 KB Output is correct
48 Correct 9 ms 25436 KB Output is correct
49 Correct 10 ms 25272 KB Output is correct
50 Correct 11 ms 25340 KB Output is correct
51 Correct 25 ms 26128 KB Output is correct
52 Correct 25 ms 26160 KB Output is correct
53 Correct 15 ms 25680 KB Output is correct
54 Correct 6 ms 24672 KB Output is correct
55 Correct 7 ms 24640 KB Output is correct
56 Correct 13 ms 25936 KB Output is correct
57 Correct 30 ms 24792 KB Output is correct
58 Correct 9 ms 25156 KB Output is correct
59 Correct 11 ms 25168 KB Output is correct
60 Correct 10 ms 25192 KB Output is correct
61 Correct 10 ms 25168 KB Output is correct
62 Correct 17 ms 25936 KB Output is correct
63 Correct 22 ms 26828 KB Output is correct
64 Correct 24 ms 26828 KB Output is correct
65 Correct 92 ms 26828 KB Output is correct
66 Correct 325 ms 26824 KB Output is correct
67 Correct 348 ms 26828 KB Output is correct