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Submission #189109

# Submission time Handle Problem Language Result Execution time Memory
189109 2020-01-13T18:34:27 Z Nucleist Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 270 ms 65896 KB 
#include <bits/stdc++.h> 
using namespace std; 
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)x.size()
#define ll long long
#define INF 1000000000
#define MOD 1000000007
#define pb push_back
#define ve vector<int>
#define dos pair<int,int>
#define vedos vector<dos>
#define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
int n,v;
set<int>scrapes[30106];
vector<dos>scrapes1[30106];
int dist[30106];
void preprocess(int tower,int range)
{
  int weight=1;
  for (int i = tower+range; i < n; i+=range)
  {
    scrapes1[tower].pb({i,weight});
    weight++;
    if(scrapes[i].find(range)!=scrapes[i].end())break;
  }
  weight=1;
  for (int i = tower-range; i >= 0; i-=range)
  {
    scrapes1[tower].pb({i,weight});
    weight++;
    if(scrapes[i].find(range)!=scrapes[i].end())break;
  }
}
int start[30101],endi[30101];
int main()
{
  flash;
  cin>>n>>v;
  int rooto,dest;
  for (int i = 0; i < v; ++i)
  {
    int x,y;
    cin>>x>>y;
    start[i]=x,endi[i]=y;
    
    if(i==0)rooto=x;
    else if(i==1)dest=x;
  }
  for (int i = 0; i < v; ++i)
  {
    if(start[i]!=dest)
    scrapes[start[i]].insert(endi[i]);
  }
  for (int i = 0; i < n; ++i)
  {
    if(i!=dest)
      {for(auto it:scrapes[i])
        preprocess(i,it);}
  }
  for (int i = 0; i < n; ++i)
  {
    dist[i]=INF;
  }
  priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>>g;
  g.push({0,rooto});
  dist[rooto]=0;
  while(!g.empty())
  {
    auto u = g.top();
    auto tower = u.second;
    g.pop();
    if(dist[tower]<u.first)continue;
    if(tower==dest)break;
    for (auto k:scrapes1[tower])
    {
      if(dist[k.first]>u.first+k.second)
      {
        dist[k.first]=u.first+k.second;
        g.push({u.first+k.second,k.first});
      }
    }
  }
  int ans=INF;
  //debugs(rooto,dest);
  ans=min(ans,dist[dest]);
  if(ans==INF)cout<<-1;
  else cout<<ans;
  return 0;
}
//code the AC sol !
// BS/queue/map

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:81:5: warning: 'dest' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(tower==dest)break;
     ^~
skyscraper.cpp:74:14: warning: 'rooto' may be used uninitialized in this function [-Wmaybe-uninitialized]
   dist[rooto]=0;
   ~~~~~~~~~~~^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2428 KB Output is correct
2 Correct 4 ms 2296 KB Output is correct
3 Correct 5 ms 2424 KB Output is correct
4 Correct 4 ms 2424 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 5 ms 2296 KB Output is correct
7 Correct 6 ms 2552 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2424 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 0 ms 2428 KB Output is correct
4 Correct 4 ms 2424 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 4 ms 2424 KB Output is correct
8 Correct 4 ms 2424 KB Output is correct
9 Correct 4 ms 2552 KB Output is correct
10 Correct 4 ms 2552 KB Output is correct
11 Correct 5 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 4 ms 2424 KB Output is correct
14 Correct 6 ms 2552 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2552 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2424 KB Output is correct
5 Correct 3 ms 2552 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 4 ms 2424 KB Output is correct
8 Correct 4 ms 2424 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 5 ms 2552 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 4 ms 2424 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 1 ms 2680 KB Output is correct
16 Correct 8 ms 2596 KB Output is correct
17 Correct 5 ms 2808 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 7 ms 2680 KB Output is correct
20 Correct 3 ms 2680 KB Output is correct
21 Correct 4 ms 2424 KB Output is correct
22 Correct 4 ms 2552 KB Output is correct
23 Correct 5 ms 2680 KB Output is correct
24 Correct 6 ms 2808 KB Output is correct
25 Correct 5 ms 2680 KB Output is correct
26 Correct 5 ms 2552 KB Output is correct
27 Correct 4 ms 2552 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 9 ms 3320 KB Output is correct
30 Correct 6 ms 2808 KB Output is correct
31 Correct 7 ms 2936 KB Output is correct
32 Correct 5 ms 2812 KB Output is correct
33 Correct 10 ms 4084 KB Output is correct
34 Correct 9 ms 4084 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2428 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 3 ms 2424 KB Output is correct
4 Correct 4 ms 2424 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 4 ms 2424 KB Output is correct
8 Correct 4 ms 2552 KB Output is correct
9 Correct 2 ms 2424 KB Output is correct
10 Correct 4 ms 2552 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 4 ms 2424 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 2808 KB Output is correct
18 Correct 3 ms 2680 KB Output is correct
19 Correct 1 ms 2552 KB Output is correct
20 Correct 4 ms 2652 KB Output is correct
21 Correct 4 ms 2552 KB Output is correct
22 Correct 12 ms 2680 KB Output is correct
23 Correct 12 ms 2648 KB Output is correct
24 Correct 6 ms 2552 KB Output is correct
25 Correct 4 ms 2808 KB Output is correct
26 Correct 5 ms 2556 KB Output is correct
27 Correct 5 ms 2552 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 8 ms 3320 KB Output is correct
30 Correct 1 ms 2808 KB Output is correct
31 Correct 6 ms 2936 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 11 ms 4088 KB Output is correct
34 Correct 9 ms 4084 KB Output is correct
35 Correct 24 ms 4984 KB Output is correct
36 Correct 6 ms 2936 KB Output is correct
37 Correct 27 ms 5624 KB Output is correct
38 Correct 32 ms 5980 KB Output is correct
39 Correct 32 ms 5880 KB Output is correct
40 Correct 32 ms 5880 KB Output is correct
41 Correct 32 ms 5880 KB Output is correct
42 Correct 7 ms 2808 KB Output is correct
43 Correct 10 ms 3064 KB Output is correct
44 Correct 10 ms 3064 KB Output is correct
45 Correct 35 ms 8824 KB Output is correct
46 Correct 33 ms 8824 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2424 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2424 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2504 KB Output is correct
7 Correct 4 ms 2424 KB Output is correct
8 Correct 4 ms 2424 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 5 ms 2552 KB Output is correct
12 Correct 5 ms 2552 KB Output is correct
13 Correct 4 ms 2424 KB Output is correct
14 Correct 5 ms 2552 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 12 ms 2684 KB Output is correct
18 Correct 4 ms 2552 KB Output is correct
19 Correct 4 ms 2552 KB Output is correct
20 Correct 5 ms 2680 KB Output is correct
21 Correct 4 ms 2552 KB Output is correct
22 Correct 4 ms 2552 KB Output is correct
23 Correct 5 ms 2552 KB Output is correct
24 Correct 6 ms 2808 KB Output is correct
25 Correct 5 ms 2680 KB Output is correct
26 Correct 4 ms 2556 KB Output is correct
27 Correct 5 ms 2552 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 12 ms 3320 KB Output is correct
30 Correct 5 ms 2808 KB Output is correct
31 Correct 6 ms 2936 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 11 ms 4084 KB Output is correct
34 Correct 9 ms 4084 KB Output is correct
35 Correct 24 ms 4872 KB Output is correct
36 Correct 6 ms 2936 KB Output is correct
37 Correct 28 ms 5624 KB Output is correct
38 Correct 33 ms 5924 KB Output is correct
39 Correct 32 ms 5880 KB Output is correct
40 Correct 31 ms 5880 KB Output is correct
41 Correct 32 ms 5852 KB Output is correct
42 Correct 9 ms 2808 KB Output is correct
43 Correct 12 ms 2936 KB Output is correct
44 Correct 10 ms 3064 KB Output is correct
45 Correct 34 ms 8824 KB Output is correct
46 Correct 32 ms 8824 KB Output is correct
47 Correct 58 ms 13300 KB Output is correct
48 Correct 24 ms 6376 KB Output is correct
49 Correct 21 ms 5624 KB Output is correct
50 Correct 18 ms 5112 KB Output is correct
51 Correct 43 ms 8452 KB Output is correct
52 Correct 47 ms 8764 KB Output is correct
53 Correct 18 ms 5352 KB Output is correct
54 Correct 6 ms 2936 KB Output is correct
55 Correct 7 ms 3316 KB Output is correct
56 Correct 20 ms 5372 KB Output is correct
57 Correct 28 ms 11388 KB Output is correct
58 Correct 14 ms 3696 KB Output is correct
59 Correct 15 ms 4468 KB Output is correct
60 Correct 15 ms 4852 KB Output is correct
61 Correct 14 ms 4088 KB Output is correct
62 Correct 46 ms 9484 KB Output is correct
63 Correct 106 ms 26348 KB Output is correct
64 Correct 116 ms 29872 KB Output is correct
65 Correct 149 ms 39304 KB Output is correct
66 Correct 270 ms 65896 KB Output is correct
67 Correct 217 ms 65892 KB Output is correct