oj.uz

Submission #779499

# Submission time Handle Problem Language Result Execution time Memory
779499 2023-07-11T13:27:10 Z Tenis0206 Jakarta Skyscrapers (APIO15_skyscraper) C++11
100 / 100
 784 ms 50648 KB 
#include <bits/stdc++.h>

using namespace std;

const int oo = INT_MAX;
const int nmax = 3e4;
const int bsize = 173;

int n,m;
int b[nmax + 5], p[nmax + 5];

int r[nmax + 5][bsize + 5];

int d[nmax + 5], d_l[nmax + 5][bsize + 5];
bool sel[nmax + 5], sel_l[nmax + 5][bsize + 5];

vector<int> l[nmax + 5];

typedef pair<int,pair<int,int>> pi;

priority_queue <pi,vector<pi>,greater<pi>> h;

void switch_doge(int t, int poz)
{
    sel[poz] = true;
    d[poz] = t;
    for(auto ln : l[poz])
    {
        if(ln < bsize)
        {
            if(poz - ln >= 0 && t + 1 < d_l[poz - ln][ln])
            {
                d_l[poz - ln][ln] = t + 1;
                h.push({t + 1, {poz - ln, ln}});
            }
            if(poz + ln < n && t + 1 < d_l[poz + ln][ln])
            {
                d_l[poz + ln][ln] = t + 1;
                h.push({t + 1, {poz + ln, ln}});
            }
        }
        else
        {
            for(int i=poz;i>=0;i-=ln)
            {
                int t_aux = t + (poz - i) / ln;
                if(t_aux < d[i])
                {
                    d[i] = t_aux;
                    h.push({t_aux,{i,ln}});
                }
            }
            for(int i=poz+ln;i<n;i+=ln)
            {
                int t_aux = t + (i - poz) / ln;
                if(t_aux < d[i])
                {
                    d[i] = t_aux;
                    h.push({t_aux,{i,ln}});
                }
            }
        }
    }
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
#ifdef home
    freopen("nr.in","r",stdin);
    freopen("nr.out","w",stdout);
#endif // home
    cin>>n>>m;
    for(int i=0; i<n; i++)
    {
        d[i] = oo;
        for(int ln=1; ln<bsize; ln++)
        {
            r[i][ln] = oo;
            d_l[i][ln] = oo;
        }
    }
    for(int i=0; i<m; i++)
    {
        cin>>b[i]>>p[i];
        l[b[i]].push_back(p[i]);
    }
    h.push({0,{b[0],p[0]}});
    if(b[0] < bsize)
    {
        d_l[b[0]][p[0]] = 0;
    }
    while(!h.empty())
    {
        while(!h.empty())
        {
            int poz = h.top().second.first;
            int ln = h.top().second.second;
            if(ln < bsize)
            {
                if(sel_l[poz][ln])
                {
                    h.pop();
                    continue;
                }
                else
                {
                    break;
                }
            }
            else
            {
                if(sel[poz])
                {
                    h.pop();
                    continue;
                }
                else
                {
                    break;
                }
            }
        }
        if(h.empty())
        {
            break;
        }
        int t = h.top().first;
        int poz = h.top().second.first;
        int ln = h.top().second.second;
        h.pop();
        if(!sel[poz])
        {
            switch_doge(t,poz);
        }
        if(ln < bsize)
        {
            sel_l[poz][ln] = true;
            if(poz - ln >= 0 && t + 1 < d_l[poz - ln][ln])
            {
                d_l[poz - ln][ln] = 1 + t;
                h.push({1 + t, {poz - ln, ln}});
            }
            if(poz + ln < n && t + 1 < d_l[poz + ln][ln])
            {
                d_l[poz + ln][ln] = 1 + t;
                h.push({1 + t, {poz + ln, ln}});
            }
        }
    }
    int rez = d[b[1]];
    if(rez==oo)
    {
        cout<<-1<<'\n';
        return 0;
    }
    cout<<rez<<'\n';
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1044 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1040 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1036 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 2 ms 1236 KB Output is correct
11 Correct 2 ms 1236 KB Output is correct
12 Correct 2 ms 1236 KB Output is correct
13 Correct 1 ms 1148 KB Output is correct
14 Correct 2 ms 1236 KB Output is correct
15 Correct 2 ms 1300 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 2 ms 1044 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1040 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1040 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 2 ms 1236 KB Output is correct
14 Correct 2 ms 1236 KB Output is correct
15 Correct 2 ms 1304 KB Output is correct
16 Correct 1 ms 1364 KB Output is correct
17 Correct 3 ms 2328 KB Output is correct
18 Correct 2 ms 3480 KB Output is correct
19 Correct 2 ms 3860 KB Output is correct
20 Correct 2 ms 4252 KB Output is correct
21 Correct 1 ms 1620 KB Output is correct
22 Correct 2 ms 3540 KB Output is correct
23 Correct 3 ms 3540 KB Output is correct
24 Correct 3 ms 4124 KB Output is correct
25 Correct 4 ms 4180 KB Output is correct
26 Correct 3 ms 4180 KB Output is correct
27 Correct 3 ms 4180 KB Output is correct
28 Correct 3 ms 4252 KB Output is correct
29 Correct 8 ms 4276 KB Output is correct
30 Correct 3 ms 4120 KB Output is correct
31 Correct 5 ms 4180 KB Output is correct
32 Correct 4 ms 4176 KB Output is correct
33 Correct 13 ms 4336 KB Output is correct
34 Correct 17 ms 4288 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 1032 KB Output is correct
3 Correct 1 ms 1044 KB Output is correct
4 Correct 1 ms 1040 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1044 KB Output is correct
10 Correct 1 ms 1164 KB Output is correct
11 Correct 2 ms 1236 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 2 ms 1172 KB Output is correct
14 Correct 2 ms 1236 KB Output is correct
15 Correct 2 ms 1236 KB Output is correct
16 Correct 2 ms 1300 KB Output is correct
17 Correct 4 ms 2260 KB Output is correct
18 Correct 3 ms 3476 KB Output is correct
19 Correct 3 ms 3796 KB Output is correct
20 Correct 3 ms 4248 KB Output is correct
21 Correct 1 ms 1620 KB Output is correct
22 Correct 2 ms 3540 KB Output is correct
23 Correct 2 ms 3604 KB Output is correct
24 Correct 4 ms 4124 KB Output is correct
25 Correct 3 ms 4252 KB Output is correct
26 Correct 2 ms 4248 KB Output is correct
27 Correct 3 ms 4252 KB Output is correct
28 Correct 3 ms 4248 KB Output is correct
29 Correct 10 ms 4280 KB Output is correct
30 Correct 3 ms 4180 KB Output is correct
31 Correct 6 ms 4180 KB Output is correct
32 Correct 4 ms 4180 KB Output is correct
33 Correct 17 ms 4356 KB Output is correct
34 Correct 16 ms 4308 KB Output is correct
35 Correct 11 ms 4020 KB Output is correct
36 Correct 3 ms 2844 KB Output is correct
37 Correct 23 ms 4820 KB Output is correct
38 Correct 16 ms 5020 KB Output is correct
39 Correct 17 ms 5020 KB Output is correct
40 Correct 16 ms 5076 KB Output is correct
41 Correct 16 ms 5076 KB Output is correct
42 Correct 6 ms 4836 KB Output is correct
43 Correct 5 ms 4816 KB Output is correct
44 Correct 5 ms 4820 KB Output is correct
45 Correct 48 ms 5340 KB Output is correct
46 Correct 46 ms 5328 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1036 KB Output is correct
2 Correct 1 ms 1036 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1044 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 1 ms 1300 KB Output is correct
12 Correct 1 ms 1180 KB Output is correct
13 Correct 1 ms 1236 KB Output is correct
14 Correct 2 ms 1236 KB Output is correct
15 Correct 2 ms 1236 KB Output is correct
16 Correct 1 ms 1364 KB Output is correct
17 Correct 3 ms 2328 KB Output is correct
18 Correct 3 ms 3540 KB Output is correct
19 Correct 2 ms 3864 KB Output is correct
20 Correct 3 ms 4308 KB Output is correct
21 Correct 2 ms 1620 KB Output is correct
22 Correct 3 ms 3592 KB Output is correct
23 Correct 2 ms 3540 KB Output is correct
24 Correct 3 ms 4140 KB Output is correct
25 Correct 4 ms 4180 KB Output is correct
26 Correct 3 ms 4252 KB Output is correct
27 Correct 3 ms 4180 KB Output is correct
28 Correct 3 ms 4308 KB Output is correct
29 Correct 7 ms 4180 KB Output is correct
30 Correct 5 ms 4180 KB Output is correct
31 Correct 5 ms 4244 KB Output is correct
32 Correct 5 ms 4236 KB Output is correct
33 Correct 13 ms 4288 KB Output is correct
34 Correct 14 ms 4308 KB Output is correct
35 Correct 13 ms 4136 KB Output is correct
36 Correct 4 ms 2900 KB Output is correct
37 Correct 17 ms 4860 KB Output is correct
38 Correct 22 ms 5076 KB Output is correct
39 Correct 23 ms 5016 KB Output is correct
40 Correct 17 ms 5076 KB Output is correct
41 Correct 17 ms 5084 KB Output is correct
42 Correct 5 ms 4892 KB Output is correct
43 Correct 6 ms 4820 KB Output is correct
44 Correct 6 ms 4840 KB Output is correct
45 Correct 45 ms 5320 KB Output is correct
46 Correct 52 ms 5292 KB Output is correct
47 Correct 84 ms 21576 KB Output is correct
48 Correct 18 ms 34352 KB Output is correct
49 Correct 19 ms 37372 KB Output is correct
50 Correct 26 ms 40660 KB Output is correct
51 Correct 58 ms 49640 KB Output is correct
52 Correct 60 ms 49644 KB Output is correct
53 Correct 31 ms 49300 KB Output is correct
54 Correct 26 ms 48088 KB Output is correct
55 Correct 22 ms 48144 KB Output is correct
56 Correct 25 ms 49552 KB Output is correct
57 Correct 71 ms 48256 KB Output is correct
58 Correct 23 ms 48812 KB Output is correct
59 Correct 25 ms 48796 KB Output is correct
60 Correct 32 ms 48796 KB Output is correct
61 Correct 34 ms 48932 KB Output is correct
62 Correct 43 ms 49692 KB Output is correct
63 Correct 70 ms 50180 KB Output is correct
64 Correct 57 ms 50244 KB Output is correct
65 Correct 288 ms 50348 KB Output is correct
66 Correct 684 ms 50620 KB Output is correct
67 Correct 784 ms 50648 KB Output is correct