oj.uz

Submission #544579

# Submission time Handle Problem Language Result Execution time Memory
544579 2022-04-02T11:33:04 Z SavicS Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 102720 KB 
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <bits/stdc++.h>
 
using namespace std;
using namespace __gnu_pbds;
 
typedef long long ll;
typedef long double ld;
 
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pdd;
 
#define ff(i,a,b) for(int i = a; i <= b; i++)
#define fb(i,b,a) for(int i = b; i >= a; i--)
#define trav(a,x) for (auto& a : x)
 
#define sz(a) (int)(a).size()
#define pb push_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

template<typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

// os.order_of_key(k) the number of elements in the os less than k
// *os.find_by_order(k)  print the k-th smallest number in os(0-based)

const int mod = 1000000007;
const int inf = 1e9 + 5;
const int mxN = 30005; 

int n, m;
int B[mxN];
int P[mxN];

vector<pii> g[mxN];
int dist[mxN];

unordered_map<int,int> L[mxN];
unordered_map<int,int> R[mxN];

int id[mxN];
bool cmp(int s1, int s2){
    return B[s1] < B[s2];
}

int main() {
    cin.tie(0)->sync_with_stdio(0);

    cin >> m >> n;
    ff(i,0,n - 1)cin >> B[i] >> P[i];

    int S = B[0];
    int T = B[1];

    ff(i,0,n - 1)id[i] = i;
    sort(id, id + n, cmp);

    ff(i,0,n - 1){
        int pos = B[id[i]] + P[id[i]], cost = 1;
        while(pos < m){
            g[B[id[i]]].pb({pos, cost}); cost += 1;
            if(L[pos].count(P[id[i]]) == 1)break;
            L[pos][P[id[i]]] = 1;
            pos += P[id[i]];
        }
    }    

    ff(i,0,n - 1){
        int pos = B[id[i]] - P[id[i]], cost = 1;
        while(pos >= 0){
            g[B[id[i]]].pb({pos, cost}); cost += 1;
            if(R[pos].count(P[id[i]]) == 1)break;
            R[pos][P[id[i]]] = 1;
            pos -= P[id[i]];
        }
    }

    ff(i,0,m - 1)dist[i] = inf;
    priority_queue<pii, vector<pii>, greater<pii>> pq;

    pq.push({dist[S] = 0, S});
    while(sz(pq)){
        pii v = pq.top(); pq.pop();
        if(dist[v.se] < v.fi)continue;
        for(auto c : g[v.se]){
            int u = c.fi;
            int w = c.se;
            if(dist[u] > v.fi + w){
                pq.push({dist[u] = v.fi + w, u});
            }
        }
    }

    cout << (dist[T] == inf ? -1 : dist[T]) << '\n';

    return 0;
}
/*

6 4
4 5
0 3
5 1
4 1

18 10
1 2
0 12
1 17
4 1
3 1
5 13
14 7
5 16
15 6
9 5

51 9
9 1
45 2
42 38
17 9
39 44
35 1
22 41
43 35
3 36
 
22 19
10 10
13 5
1 1
17 17
2 3
3 9
20 22
18 1
3 5
11 16
7 16
2 22
20 4
11 19
7 1
16 1
11 14
8 9
3 18

5 3 
0 2 
1 1 
4 1
 
// probati bojenje sahovski
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4308 KB Output is correct
2 Correct 2 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 2 ms 4308 KB Output is correct
6 Correct 2 ms 4308 KB Output is correct
7 Correct 3 ms 4308 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4308 KB Output is correct
2 Correct 3 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 2 ms 4336 KB Output is correct
6 Correct 2 ms 4308 KB Output is correct
7 Correct 3 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 2 ms 4308 KB Output is correct
10 Correct 3 ms 4308 KB Output is correct
11 Correct 3 ms 4564 KB Output is correct
12 Correct 3 ms 4436 KB Output is correct
13 Correct 2 ms 4436 KB Output is correct
14 Correct 3 ms 4564 KB Output is correct
15 Correct 4 ms 4564 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4308 KB Output is correct
2 Correct 3 ms 4308 KB Output is correct
3 Correct 3 ms 4308 KB Output is correct
4 Correct 2 ms 4308 KB Output is correct
5 Correct 4 ms 4308 KB Output is correct
6 Correct 3 ms 4308 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 3 ms 4276 KB Output is correct
10 Correct 2 ms 4308 KB Output is correct
11 Correct 3 ms 4564 KB Output is correct
12 Correct 3 ms 4436 KB Output is correct
13 Correct 3 ms 4436 KB Output is correct
14 Correct 3 ms 4564 KB Output is correct
15 Correct 4 ms 4600 KB Output is correct
16 Correct 4 ms 4436 KB Output is correct
17 Correct 6 ms 5108 KB Output is correct
18 Correct 5 ms 4820 KB Output is correct
19 Correct 3 ms 4692 KB Output is correct
20 Correct 4 ms 4980 KB Output is correct
21 Correct 3 ms 4436 KB Output is correct
22 Correct 4 ms 4820 KB Output is correct
23 Correct 4 ms 4820 KB Output is correct
24 Correct 5 ms 5204 KB Output is correct
25 Correct 5 ms 5076 KB Output is correct
26 Correct 5 ms 5204 KB Output is correct
27 Correct 4 ms 4948 KB Output is correct
28 Correct 6 ms 5588 KB Output is correct
29 Correct 17 ms 8148 KB Output is correct
30 Correct 7 ms 5588 KB Output is correct
31 Correct 10 ms 6488 KB Output is correct
32 Correct 6 ms 5844 KB Output is correct
33 Correct 32 ms 11316 KB Output is correct
34 Correct 30 ms 11252 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4308 KB Output is correct
2 Correct 3 ms 4308 KB Output is correct
3 Correct 3 ms 4264 KB Output is correct
4 Correct 3 ms 4308 KB Output is correct
5 Correct 3 ms 4308 KB Output is correct
6 Correct 3 ms 4308 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4308 KB Output is correct
9 Correct 3 ms 4308 KB Output is correct
10 Correct 3 ms 4308 KB Output is correct
11 Correct 5 ms 4564 KB Output is correct
12 Correct 3 ms 4436 KB Output is correct
13 Correct 3 ms 4436 KB Output is correct
14 Correct 3 ms 4564 KB Output is correct
15 Correct 3 ms 4588 KB Output is correct
16 Correct 3 ms 4436 KB Output is correct
17 Correct 5 ms 5204 KB Output is correct
18 Correct 4 ms 4876 KB Output is correct
19 Correct 3 ms 4692 KB Output is correct
20 Correct 4 ms 5076 KB Output is correct
21 Correct 3 ms 4436 KB Output is correct
22 Correct 3 ms 4820 KB Output is correct
23 Correct 4 ms 4820 KB Output is correct
24 Correct 5 ms 5204 KB Output is correct
25 Correct 5 ms 5192 KB Output is correct
26 Correct 5 ms 5204 KB Output is correct
27 Correct 5 ms 4948 KB Output is correct
28 Correct 6 ms 5588 KB Output is correct
29 Correct 17 ms 8100 KB Output is correct
30 Correct 6 ms 5588 KB Output is correct
31 Correct 9 ms 6480 KB Output is correct
32 Correct 7 ms 5844 KB Output is correct
33 Correct 31 ms 11260 KB Output is correct
34 Correct 27 ms 11352 KB Output is correct
35 Correct 23 ms 9356 KB Output is correct
36 Correct 5 ms 5204 KB Output is correct
37 Correct 49 ms 14180 KB Output is correct
38 Correct 49 ms 12832 KB Output is correct
39 Correct 45 ms 12884 KB Output is correct
40 Correct 45 ms 12876 KB Output is correct
41 Correct 57 ms 12876 KB Output is correct
42 Correct 10 ms 5928 KB Output is correct
43 Correct 9 ms 5724 KB Output is correct
44 Correct 13 ms 5840 KB Output is correct
45 Correct 212 ms 27196 KB Output is correct
46 Correct 178 ms 27304 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 4 ms 4308 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 4 ms 4308 KB Output is correct
5 Correct 5 ms 4352 KB Output is correct
6 Correct 4 ms 4308 KB Output is correct
7 Correct 3 ms 4308 KB Output is correct
8 Correct 3 ms 4308 KB Output is correct
9 Correct 2 ms 4308 KB Output is correct
10 Correct 3 ms 4308 KB Output is correct
11 Correct 4 ms 4564 KB Output is correct
12 Correct 3 ms 4436 KB Output is correct
13 Correct 3 ms 4436 KB Output is correct
14 Correct 3 ms 4564 KB Output is correct
15 Correct 4 ms 4564 KB Output is correct
16 Correct 5 ms 4556 KB Output is correct
17 Correct 8 ms 5208 KB Output is correct
18 Correct 5 ms 4820 KB Output is correct
19 Correct 4 ms 4692 KB Output is correct
20 Correct 5 ms 5076 KB Output is correct
21 Correct 4 ms 4436 KB Output is correct
22 Correct 6 ms 4820 KB Output is correct
23 Correct 5 ms 4820 KB Output is correct
24 Correct 5 ms 5204 KB Output is correct
25 Correct 5 ms 5076 KB Output is correct
26 Correct 6 ms 5204 KB Output is correct
27 Correct 4 ms 4948 KB Output is correct
28 Correct 6 ms 5588 KB Output is correct
29 Correct 18 ms 8120 KB Output is correct
30 Correct 6 ms 5588 KB Output is correct
31 Correct 13 ms 6528 KB Output is correct
32 Correct 7 ms 5844 KB Output is correct
33 Correct 50 ms 11308 KB Output is correct
34 Correct 34 ms 11348 KB Output is correct
35 Correct 33 ms 9332 KB Output is correct
36 Correct 7 ms 5204 KB Output is correct
37 Correct 45 ms 14224 KB Output is correct
38 Correct 49 ms 12832 KB Output is correct
39 Correct 57 ms 12920 KB Output is correct
40 Correct 56 ms 12876 KB Output is correct
41 Correct 57 ms 12880 KB Output is correct
42 Correct 9 ms 5960 KB Output is correct
43 Correct 10 ms 5724 KB Output is correct
44 Correct 9 ms 5828 KB Output is correct
45 Correct 241 ms 27232 KB Output is correct
46 Correct 275 ms 27308 KB Output is correct
47 Correct 414 ms 46852 KB Output is correct
48 Correct 78 ms 18248 KB Output is correct
49 Correct 51 ms 14248 KB Output is correct
50 Correct 45 ms 14708 KB Output is correct
51 Correct 116 ms 24364 KB Output is correct
52 Correct 158 ms 26680 KB Output is correct
53 Correct 34 ms 15564 KB Output is correct
54 Correct 11 ms 9152 KB Output is correct
55 Correct 23 ms 14532 KB Output is correct
56 Correct 37 ms 15340 KB Output is correct
57 Correct 290 ms 46760 KB Output is correct
58 Correct 31 ms 15748 KB Output is correct
59 Correct 41 ms 16096 KB Output is correct
60 Correct 56 ms 19308 KB Output is correct
61 Correct 45 ms 15348 KB Output is correct
62 Correct 172 ms 31108 KB Output is correct
63 Execution timed out 1102 ms 102720 KB Time limit exceeded
64 Halted 0 ms 0 KB -