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Submission #610781

# Submission time Handle Problem Language Result Execution time Memory
610781 2022-07-28T14:02:09 Z nohaxjustsoflo Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 271 ms 66376 KB 
#include <bits/stdc++.h>
#include <iostream>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> order_set;
mt19937 mt_rand(chrono::high_resolution_clock::now().time_since_epoch().count());
//uniform_int_distribution<int> gen; ///(min, max)
//int random() {return gen(mt_rand);}
const int mxN=30001;
const int mod=998244353;
const int mxlogN=40;
const int mxK=26;
const int inf=1e9;
const int K=600;
int vis[10000000];
bool done[10000000];
int a[mxN], b[mxN],n,m;
vector<int> have, who2[mxN];
vector<pair<int,int>> who[mxN];
int pos(int x)
{
    return lower_bound(have.begin(),have.end(),x)-have.begin();
}
struct st
{
    int x,p,i;
};
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> m;
    for(int i=0; i<m; i++) cin >> a[i] >> b[i];
    for(int i=0; i<m; i++)
    {
        who[a[i]].push_back({a[i],b[i]});
        who2[b[i]].push_back(a[i]%b[i]);
    }
    for(int i=1; i<mxN; i++)
    {
        sort(who2[i].begin(),who2[i].end());
        who2[i].erase(unique(who2[i].begin(),who2[i].end()),who2[i].end());
        for(int k=0; k*i<n; k++) for(int j:who2[i]) if(j+k*i<n) have.push_back(i*n+j+k*i);
    }
    for(int i=0; i<n; i++) for(auto& par:who[i]) par.first=pos(par.second*n+par.first);
    deque<st> q; q.push_back({a[0],b[0],pos(b[0]*n+a[0])});
    int sz=have.size();
    for(int i=0; i<sz; i++) vis[i]=inf;
    vis[pos(b[0]*n+a[0])]=0;
    while(q.size())
    {
        auto cur=q.front(); q.pop_front();
        int x=cur.x,p=cur.p,i=cur.i;
        if(x==a[1])
        {
            cout << vis[i] << "\n";
            return 0;
        }
        if(done[i]) continue;
        done[i]=1;
        while(who[x].size())
        {
            auto cur2=who[x].back(); who[x].pop_back();
            int nw=cur2.first;
            if(vis[i]<vis[nw])
            {
                vis[nw]=vis[i];
                q.push_front({x,cur2.second,nw});
            }
        }
        if(x-p>=0)
        {
            int nw=i-who2[p].size();
            if(vis[i]+1<vis[nw])
            {
                vis[nw]=vis[i]+1;
                q.push_back({x-p,p,nw});
            }
        }
        if(x+p<n)
        {
            int nw=i+who2[p].size();
            if(vis[i]+1<vis[nw])
            {
                vis[nw]=vis[i]+1;
                q.push_back({x+p,p,nw});
            }
        }
    }
    cout << "-1" << "\n";
    return 0;
}
/*
5 3
0 2
1 1
4 1
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 2 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 2 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 2 ms 1748 KB Output is correct
14 Correct 2 ms 1888 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 2 ms 1748 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 1748 KB Output is correct
17 Correct 2 ms 2004 KB Output is correct
18 Correct 1 ms 1876 KB Output is correct
19 Correct 1 ms 1748 KB Output is correct
20 Correct 2 ms 1748 KB Output is correct
21 Correct 1 ms 1748 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 2 ms 2004 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 3 ms 2132 KB Output is correct
29 Correct 3 ms 2392 KB Output is correct
30 Correct 2 ms 2004 KB Output is correct
31 Correct 3 ms 2132 KB Output is correct
32 Correct 2 ms 2004 KB Output is correct
33 Correct 5 ms 3020 KB Output is correct
34 Correct 4 ms 3020 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 2 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 1 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 1748 KB Output is correct
17 Correct 2 ms 2004 KB Output is correct
18 Correct 2 ms 1876 KB Output is correct
19 Correct 1 ms 1748 KB Output is correct
20 Correct 3 ms 1748 KB Output is correct
21 Correct 1 ms 1748 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 2 ms 2004 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 2 ms 2132 KB Output is correct
29 Correct 3 ms 2392 KB Output is correct
30 Correct 2 ms 2004 KB Output is correct
31 Correct 3 ms 2132 KB Output is correct
32 Correct 2 ms 2004 KB Output is correct
33 Correct 5 ms 2892 KB Output is correct
34 Correct 4 ms 2892 KB Output is correct
35 Correct 12 ms 3532 KB Output is correct
36 Correct 3 ms 2132 KB Output is correct
37 Correct 9 ms 4040 KB Output is correct
38 Correct 15 ms 4252 KB Output is correct
39 Correct 14 ms 4052 KB Output is correct
40 Correct 13 ms 4176 KB Output is correct
41 Correct 12 ms 4176 KB Output is correct
42 Correct 6 ms 2516 KB Output is correct
43 Correct 6 ms 2516 KB Output is correct
44 Correct 5 ms 2388 KB Output is correct
45 Correct 29 ms 7028 KB Output is correct
46 Correct 20 ms 7112 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 1 ms 1876 KB Output is correct
16 Correct 2 ms 1748 KB Output is correct
17 Correct 2 ms 2004 KB Output is correct
18 Correct 1 ms 1876 KB Output is correct
19 Correct 1 ms 1748 KB Output is correct
20 Correct 1 ms 1876 KB Output is correct
21 Correct 2 ms 1860 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 4 ms 2004 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 3 ms 1908 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 2 ms 2132 KB Output is correct
29 Correct 3 ms 2492 KB Output is correct
30 Correct 2 ms 2004 KB Output is correct
31 Correct 3 ms 2132 KB Output is correct
32 Correct 2 ms 2004 KB Output is correct
33 Correct 5 ms 3020 KB Output is correct
34 Correct 4 ms 2928 KB Output is correct
35 Correct 11 ms 3532 KB Output is correct
36 Correct 3 ms 2132 KB Output is correct
37 Correct 9 ms 4040 KB Output is correct
38 Correct 13 ms 4300 KB Output is correct
39 Correct 12 ms 4052 KB Output is correct
40 Correct 15 ms 4176 KB Output is correct
41 Correct 13 ms 4164 KB Output is correct
42 Correct 6 ms 2516 KB Output is correct
43 Correct 7 ms 2516 KB Output is correct
44 Correct 6 ms 2440 KB Output is correct
45 Correct 24 ms 7064 KB Output is correct
46 Correct 19 ms 7036 KB Output is correct
47 Correct 21 ms 9032 KB Output is correct
48 Correct 14 ms 4820 KB Output is correct
49 Correct 11 ms 4048 KB Output is correct
50 Correct 9 ms 3784 KB Output is correct
51 Correct 21 ms 6012 KB Output is correct
52 Correct 19 ms 6336 KB Output is correct
53 Correct 13 ms 3724 KB Output is correct
54 Correct 3 ms 2132 KB Output is correct
55 Correct 3 ms 2264 KB Output is correct
56 Correct 14 ms 3412 KB Output is correct
57 Correct 6 ms 5444 KB Output is correct
58 Correct 9 ms 3044 KB Output is correct
59 Correct 12 ms 3284 KB Output is correct
60 Correct 8 ms 3532 KB Output is correct
61 Correct 8 ms 3584 KB Output is correct
62 Correct 29 ms 7564 KB Output is correct
63 Correct 102 ms 22804 KB Output is correct
64 Correct 124 ms 27416 KB Output is correct
65 Correct 158 ms 38296 KB Output is correct
66 Correct 271 ms 66376 KB Output is correct
67 Correct 171 ms 64064 KB Output is correct