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Submission #683959

# Submission time Handle Problem Language Result Execution time Memory
683959 2023-01-19T19:09:27 Z speedyArda Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 263 ms 63236 KB 
#include "bits/stdc++.h"
 
using namespace std;
const int MAXN = 3e4+5;
 
vector< vector < pair<int, int> > > adj(MAXN);
vector< set <  int > > doges(MAXN);
int dp[MAXN];
//map< pair<int, int>, bool > done;
//map< pair<int, int>, int> max_road;
bool visited[MAXN];
int main() 
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    int goal, begin;
    for(int i = 0; i < m; i++)
    {
        pair<int, int> temp;
        cin >> temp.first >> temp.second;
        if(i == 1)
            goal = temp.first;
        else if(i == 0)
            begin = temp.first;
        doges[temp.first].insert(temp.second);
        //done[{temp.first, temp.second}] = true;

    }
 
    for(int i = 0; i <= n; i++) {
        dp[i] = 1e9;
        //visited[i] = false;
    }

    //visited[begin] = false;
    dp[begin] = 0;
    set< pair<int, int> > curr; 
    curr.insert({0, begin});
    int ans = 1e9;
    for(int i = 0; i < n; i++)
    {
        for(int e : doges[i])
        {
            //cout << i << " " << e << "\n";
            int cnt = 1;
            int currNode = e + i;
            while(currNode < n)
            {
                //cout << i << " " << e << " " << currNode << "\n";
                adj[i].push_back({cnt, currNode});
                if(doges[currNode].find(e) != doges[currNode].end())
                    break;
                cnt++;
                currNode += e;
                
            }

            cnt = 1;
            currNode = i - e;
            while(currNode >= 0)
            {
                
                //cout << i << " " << e << " " << currNode << "\n";
                adj[i].push_back({cnt, currNode});
                if(doges[currNode].find(e) != doges[currNode].end())
                    break;
                cnt++;
                currNode -= e;
                
            }
        }

    }
    while(!curr.empty())
    {
        pair<int, int> node = *(curr.begin());
        int v = node.second;
        curr.erase(curr.begin());
        //int max_road[n];
        visited[v] = true;
        for(pair<int, int> to : adj[v])
        {
            if(dp[to.second] > dp[v] + to.first)
            {
                curr.erase({dp[to.second], to.second});
                dp[to.second] = dp[v] + to.first;
                curr.insert({dp[to.second], to.second});
            }
        }
            
        
       
        
    }
    

   
    ans = dp[goal];
    if(ans >= 1e9)
        ans = -1;
    cout << ans << "\n";
 
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:100:9: warning: 'goal' may be used uninitialized in this function [-Wmaybe-uninitialized]
  100 |     ans = dp[goal];
      |     ~~~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2512 KB Output is correct
2 Correct 2 ms 2452 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Correct 2 ms 2340 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2456 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 2 ms 2456 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 2 ms 2452 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2432 KB Output is correct
8 Correct 1 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 2 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2464 KB Output is correct
14 Correct 3 ms 2516 KB Output is correct
15 Correct 3 ms 2516 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2456 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 3 ms 2388 KB Output is correct
10 Correct 2 ms 2456 KB Output is correct
11 Correct 2 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2464 KB Output is correct
14 Correct 3 ms 2596 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2724 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2460 KB Output is correct
20 Correct 2 ms 2596 KB Output is correct
21 Correct 2 ms 2472 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 3 ms 2588 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 3 ms 2588 KB Output is correct
27 Correct 2 ms 2516 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 6 ms 3156 KB Output is correct
30 Correct 3 ms 2712 KB Output is correct
31 Correct 5 ms 2900 KB Output is correct
32 Correct 4 ms 2772 KB Output is correct
33 Correct 9 ms 3668 KB Output is correct
34 Correct 10 ms 3668 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2456 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2456 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 3 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2464 KB Output is correct
14 Correct 2 ms 2516 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2680 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2440 KB Output is correct
20 Correct 2 ms 2516 KB Output is correct
21 Correct 2 ms 2516 KB Output is correct
22 Correct 2 ms 2464 KB Output is correct
23 Correct 2 ms 2516 KB Output is correct
24 Correct 3 ms 2724 KB Output is correct
25 Correct 4 ms 2644 KB Output is correct
26 Correct 2 ms 2600 KB Output is correct
27 Correct 2 ms 2592 KB Output is correct
28 Correct 3 ms 2724 KB Output is correct
29 Correct 6 ms 3156 KB Output is correct
30 Correct 3 ms 2772 KB Output is correct
31 Correct 4 ms 2840 KB Output is correct
32 Correct 3 ms 2772 KB Output is correct
33 Correct 8 ms 3616 KB Output is correct
34 Correct 8 ms 3668 KB Output is correct
35 Correct 16 ms 4916 KB Output is correct
36 Correct 4 ms 2900 KB Output is correct
37 Correct 17 ms 5492 KB Output is correct
38 Correct 28 ms 5788 KB Output is correct
39 Correct 21 ms 5860 KB Output is correct
40 Correct 27 ms 5844 KB Output is correct
41 Correct 20 ms 5796 KB Output is correct
42 Correct 6 ms 2800 KB Output is correct
43 Correct 6 ms 2676 KB Output is correct
44 Correct 6 ms 2724 KB Output is correct
45 Correct 23 ms 8236 KB Output is correct
46 Correct 23 ms 8228 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2460 KB Output is correct
2 Correct 2 ms 2512 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2456 KB Output is correct
7 Correct 1 ms 2456 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 2 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2464 KB Output is correct
14 Correct 2 ms 2516 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 3 ms 2644 KB Output is correct
18 Correct 3 ms 2516 KB Output is correct
19 Correct 2 ms 2516 KB Output is correct
20 Correct 2 ms 2592 KB Output is correct
21 Correct 2 ms 2516 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2592 KB Output is correct
24 Correct 4 ms 2724 KB Output is correct
25 Correct 3 ms 2644 KB Output is correct
26 Correct 2 ms 2516 KB Output is correct
27 Correct 2 ms 2596 KB Output is correct
28 Correct 3 ms 2800 KB Output is correct
29 Correct 6 ms 3156 KB Output is correct
30 Correct 3 ms 2772 KB Output is correct
31 Correct 4 ms 2900 KB Output is correct
32 Correct 3 ms 2772 KB Output is correct
33 Correct 8 ms 3612 KB Output is correct
34 Correct 8 ms 3668 KB Output is correct
35 Correct 15 ms 4904 KB Output is correct
36 Correct 4 ms 2900 KB Output is correct
37 Correct 22 ms 5480 KB Output is correct
38 Correct 21 ms 5764 KB Output is correct
39 Correct 22 ms 5844 KB Output is correct
40 Correct 21 ms 5844 KB Output is correct
41 Correct 20 ms 5792 KB Output is correct
42 Correct 8 ms 2772 KB Output is correct
43 Correct 5 ms 2772 KB Output is correct
44 Correct 7 ms 2772 KB Output is correct
45 Correct 23 ms 8276 KB Output is correct
46 Correct 23 ms 8284 KB Output is correct
47 Correct 51 ms 12796 KB Output is correct
48 Correct 15 ms 6224 KB Output is correct
49 Correct 17 ms 5204 KB Output is correct
50 Correct 10 ms 4908 KB Output is correct
51 Correct 58 ms 8880 KB Output is correct
52 Correct 54 ms 9036 KB Output is correct
53 Correct 23 ms 6300 KB Output is correct
54 Correct 6 ms 3484 KB Output is correct
55 Correct 7 ms 3864 KB Output is correct
56 Correct 12 ms 5156 KB Output is correct
57 Correct 56 ms 11744 KB Output is correct
58 Correct 12 ms 4172 KB Output is correct
59 Correct 13 ms 4560 KB Output is correct
60 Correct 17 ms 5200 KB Output is correct
61 Correct 16 ms 4648 KB Output is correct
62 Correct 24 ms 9428 KB Output is correct
63 Correct 96 ms 25508 KB Output is correct
64 Correct 108 ms 29024 KB Output is correct
65 Correct 152 ms 38264 KB Output is correct
66 Correct 261 ms 63236 KB Output is correct
67 Correct 263 ms 63068 KB Output is correct