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Submission #284621

# Submission time Handle Problem Language Result Execution time Memory
284621 2020-08-27T18:15:18 Z doowey Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 958 ms 27128 KB 
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = 30010;
const int MX = 1e6;
const int inf = (int)1e9;
int dist[N];
vector<int> id[MX];
vector<int> q[N];

int main(){
    fastIO;
    int n, m;
    cin >> n >> m;
    int st = -1, en = -1;
    int xi, yi;
    for(int i = 0 ; i < n; i ++ ){
        dist[i] = inf;
    }
    for(int i = 0 ; i < m; i ++ ){
        cin >> xi >> yi;
        q[xi].push_back(yi);
        if(i == 0){
            st = xi;
        }
        else if(i == 1){
            en = xi;
        }
    }
    id[0].push_back(st);
    dist[st] = 0;
    for(int i = 0 ; i < MX; i ++ ){
        if(id[i].empty()) continue;
        for(auto x : id[i]){ // this just adds +n so its fine
            if(x == en){
                cout << i << "\n";
                return 0;
            }
        }
        for(auto x : id[i]){
            if(dist[x] != i) continue;
            for(auto y : q[x]){
                for(int f = 1; x + y * f < n && i + f < MX; f ++ ){
                    if(dist[x + y * f] > i + f){
                        dist[x + y * f] = i + f;
                        id[i + f].push_back(x + y * f);
                    }
                }
                for(int f = 1; x - y * f >= 0 && i + f < MX; f ++ ){
                    if(dist[x - y * f] > i + f){
                        dist[x - y * f] = i + f;
                        id[i + f].push_back(x - y * f);
                    }
                }
            }
        }
    }
    cout << "-1\n";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 24576 KB Output is correct
2 Correct 17 ms 24576 KB Output is correct
3 Correct 18 ms 24576 KB Output is correct
4 Correct 21 ms 24576 KB Output is correct
5 Correct 18 ms 24576 KB Output is correct
6 Correct 18 ms 24576 KB Output is correct
7 Correct 20 ms 24576 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 24576 KB Output is correct
2 Correct 18 ms 24576 KB Output is correct
3 Correct 18 ms 24576 KB Output is correct
4 Correct 26 ms 24568 KB Output is correct
5 Correct 19 ms 24576 KB Output is correct
6 Correct 18 ms 24568 KB Output is correct
7 Correct 19 ms 24576 KB Output is correct
8 Correct 18 ms 24576 KB Output is correct
9 Correct 18 ms 24576 KB Output is correct
10 Correct 21 ms 24576 KB Output is correct
11 Correct 20 ms 24576 KB Output is correct
12 Correct 18 ms 24576 KB Output is correct
13 Correct 21 ms 24576 KB Output is correct
14 Correct 19 ms 24580 KB Output is correct
15 Correct 18 ms 24576 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 24552 KB Output is correct
2 Correct 18 ms 24448 KB Output is correct
3 Correct 18 ms 24576 KB Output is correct
4 Correct 22 ms 24576 KB Output is correct
5 Correct 19 ms 24576 KB Output is correct
6 Correct 18 ms 24576 KB Output is correct
7 Correct 18 ms 24576 KB Output is correct
8 Correct 19 ms 24576 KB Output is correct
9 Correct 22 ms 24576 KB Output is correct
10 Correct 18 ms 24576 KB Output is correct
11 Correct 18 ms 24576 KB Output is correct
12 Correct 19 ms 24576 KB Output is correct
13 Correct 20 ms 24576 KB Output is correct
14 Correct 18 ms 24576 KB Output is correct
15 Correct 18 ms 24576 KB Output is correct
16 Correct 21 ms 24576 KB Output is correct
17 Correct 18 ms 24576 KB Output is correct
18 Correct 27 ms 24560 KB Output is correct
19 Correct 21 ms 24576 KB Output is correct
20 Correct 22 ms 24704 KB Output is correct
21 Correct 22 ms 24560 KB Output is correct
22 Correct 22 ms 24576 KB Output is correct
23 Correct 22 ms 24576 KB Output is correct
24 Correct 21 ms 24648 KB Output is correct
25 Correct 21 ms 24576 KB Output is correct
26 Correct 19 ms 24576 KB Output is correct
27 Correct 18 ms 24576 KB Output is correct
28 Correct 23 ms 24696 KB Output is correct
29 Correct 18 ms 24704 KB Output is correct
30 Correct 18 ms 24576 KB Output is correct
31 Correct 18 ms 24576 KB Output is correct
32 Correct 22 ms 24576 KB Output is correct
33 Correct 19 ms 24704 KB Output is correct
34 Correct 19 ms 24704 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 24576 KB Output is correct
2 Correct 20 ms 24448 KB Output is correct
3 Correct 18 ms 24576 KB Output is correct
4 Correct 22 ms 24576 KB Output is correct
5 Correct 18 ms 24576 KB Output is correct
6 Correct 18 ms 24576 KB Output is correct
7 Correct 18 ms 24576 KB Output is correct
8 Correct 18 ms 24576 KB Output is correct
9 Correct 18 ms 24576 KB Output is correct
10 Correct 18 ms 24576 KB Output is correct
11 Correct 19 ms 24576 KB Output is correct
12 Correct 18 ms 24576 KB Output is correct
13 Correct 18 ms 24536 KB Output is correct
14 Correct 18 ms 24576 KB Output is correct
15 Correct 18 ms 24576 KB Output is correct
16 Correct 22 ms 24528 KB Output is correct
17 Correct 18 ms 24576 KB Output is correct
18 Correct 23 ms 24576 KB Output is correct
19 Correct 21 ms 24576 KB Output is correct
20 Correct 22 ms 24704 KB Output is correct
21 Correct 20 ms 24576 KB Output is correct
22 Correct 21 ms 24496 KB Output is correct
23 Correct 18 ms 24576 KB Output is correct
24 Correct 18 ms 24576 KB Output is correct
25 Correct 19 ms 24576 KB Output is correct
26 Correct 18 ms 24576 KB Output is correct
27 Correct 17 ms 24576 KB Output is correct
28 Correct 17 ms 24704 KB Output is correct
29 Correct 17 ms 24704 KB Output is correct
30 Correct 17 ms 24576 KB Output is correct
31 Correct 20 ms 24576 KB Output is correct
32 Correct 18 ms 24704 KB Output is correct
33 Correct 23 ms 24704 KB Output is correct
34 Correct 21 ms 24704 KB Output is correct
35 Correct 23 ms 24704 KB Output is correct
36 Correct 21 ms 24576 KB Output is correct
37 Correct 22 ms 24704 KB Output is correct
38 Correct 24 ms 24824 KB Output is correct
39 Correct 23 ms 24704 KB Output is correct
40 Correct 24 ms 24832 KB Output is correct
41 Correct 24 ms 24832 KB Output is correct
42 Correct 22 ms 24784 KB Output is correct
43 Correct 27 ms 24832 KB Output is correct
44 Correct 69 ms 24820 KB Output is correct
45 Correct 22 ms 24832 KB Output is correct
46 Correct 22 ms 24832 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 24576 KB Output is correct
2 Correct 18 ms 24552 KB Output is correct
3 Correct 20 ms 24576 KB Output is correct
4 Correct 21 ms 24576 KB Output is correct
5 Correct 20 ms 24576 KB Output is correct
6 Correct 16 ms 24576 KB Output is correct
7 Correct 16 ms 24576 KB Output is correct
8 Correct 17 ms 24576 KB Output is correct
9 Correct 16 ms 24576 KB Output is correct
10 Correct 16 ms 24576 KB Output is correct
11 Correct 23 ms 24576 KB Output is correct
12 Correct 18 ms 24576 KB Output is correct
13 Correct 18 ms 24512 KB Output is correct
14 Correct 18 ms 24576 KB Output is correct
15 Correct 17 ms 24576 KB Output is correct
16 Correct 20 ms 24576 KB Output is correct
17 Correct 17 ms 24576 KB Output is correct
18 Correct 26 ms 24576 KB Output is correct
19 Correct 20 ms 24600 KB Output is correct
20 Correct 22 ms 24704 KB Output is correct
21 Correct 24 ms 24576 KB Output is correct
22 Correct 20 ms 24576 KB Output is correct
23 Correct 18 ms 24576 KB Output is correct
24 Correct 17 ms 24576 KB Output is correct
25 Correct 17 ms 24576 KB Output is correct
26 Correct 17 ms 24576 KB Output is correct
27 Correct 22 ms 24576 KB Output is correct
28 Correct 18 ms 24704 KB Output is correct
29 Correct 17 ms 24704 KB Output is correct
30 Correct 17 ms 24704 KB Output is correct
31 Correct 17 ms 24576 KB Output is correct
32 Correct 17 ms 24576 KB Output is correct
33 Correct 17 ms 24704 KB Output is correct
34 Correct 19 ms 24704 KB Output is correct
35 Correct 22 ms 24704 KB Output is correct
36 Correct 17 ms 24576 KB Output is correct
37 Correct 22 ms 24704 KB Output is correct
38 Correct 23 ms 24832 KB Output is correct
39 Correct 23 ms 24704 KB Output is correct
40 Correct 26 ms 24824 KB Output is correct
41 Correct 23 ms 24832 KB Output is correct
42 Correct 24 ms 24832 KB Output is correct
43 Correct 21 ms 24832 KB Output is correct
44 Correct 67 ms 24820 KB Output is correct
45 Correct 24 ms 24832 KB Output is correct
46 Correct 23 ms 24832 KB Output is correct
47 Correct 32 ms 25208 KB Output is correct
48 Correct 27 ms 25088 KB Output is correct
49 Correct 26 ms 25088 KB Output is correct
50 Correct 24 ms 24960 KB Output is correct
51 Correct 29 ms 26236 KB Output is correct
52 Correct 29 ms 25980 KB Output is correct
53 Correct 26 ms 25728 KB Output is correct
54 Correct 23 ms 25216 KB Output is correct
55 Correct 22 ms 25216 KB Output is correct
56 Correct 840 ms 26496 KB Output is correct
57 Correct 21 ms 25344 KB Output is correct
58 Correct 958 ms 25848 KB Output is correct
59 Correct 24 ms 25600 KB Output is correct
60 Correct 24 ms 25600 KB Output is correct
61 Correct 24 ms 25600 KB Output is correct
62 Correct 32 ms 26496 KB Output is correct
63 Correct 30 ms 26496 KB Output is correct
64 Correct 31 ms 26624 KB Output is correct
65 Correct 33 ms 26880 KB Output is correct
66 Correct 38 ms 27128 KB Output is correct
67 Correct 40 ms 27128 KB Output is correct