oj.uz

Submission #72749

# Submission time Handle Problem Language Result Execution time Memory
72749 2018-08-26T22:11:59 Z Pajaraja Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 74 ms 13432 KB 
#include <bits/stdc++.h>
#define MAXN 30007
using namespace std;
vector<int> g[MAXN],w[MAXN];
set<int> v[MAXN];
bool vi[MAXN];
int dist[MAXN],en;
void dijkstra(int s)
{
	priority_queue<pair<int,int> > pq;
	pq.push(make_pair(0,s));
	while(!pq.empty())
	{
		int u=pq.top().second,d=-pq.top().first;
		pq.pop();
		if(vi[u]) continue;
		dist[u]=d;
		vi[u]=true;
		if(u==en) return;
		for(int i=0;i<g[u].size();i++) if(!vi[g[u][i]]) pq.push(make_pair(-d-w[u][i],g[u][i]));
	}
}
/*bool binarna(int l,int r,int k,int val)
{
	if(r<l) return false;
	int s=(l+r)/2;
	if(v[k][s]==val) return true;
	if(val<v[k][s]) return binarna(l,s-1,k,val);
	return binarna(s+1,r,k,val);
}*/
int main()
{
	int n,m,st,t1,t2;
	scanf("%d%d",&n,&m);
	scanf("%d%d%d%d",&st,&t1,&en,&t2);
	v[st].insert(-t1);
	v[en].insert(-t2);
	for(int i=0;i<m-2;i++)
	{
		scanf("%d%d",&t1,&t2);
		v[t1].insert(-t2);
	}
	for(int i=0;i<n;i++)
	{
		for(set<int>::iterator it=v[i].begin();it!=v[i].end();it++)
		{
			int t=-(*it),cur=i+t;
			while(cur<n)
			{
				if(!vi[cur] && v[cur].size()>0) 
				{
					g[i].push_back(cur);
					w[i].push_back((cur-i)/t);
					vi[cur]=true;
				}
				if(v[cur].find(-t)!=v[cur].end()) break;
				cur+=t;
			} 
			cur=i-t;
			while(cur>=0)
			{
				if(!vi[cur] && v[cur].size()>0) 
				{
					g[i].push_back(cur);
					w[i].push_back((i-cur)/t);
					vi[cur]=true;
				}
				if(v[cur].find(-t)!=v[cur].end()) break;
				cur-=t;
			}
		}
		for(int j=0;j<g[i].size();j++) vi[g[i][j]]=false;
	}
	dijkstra(st);
	if(!vi[en]) dist[en]=-1;
	printf("%d",dist[en]);
}

Compilation message

skyscraper.cpp: In function 'void dijkstra(int)':
skyscraper.cpp:20:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<g[u].size();i++) if(!vi[g[u][i]]) pq.push(make_pair(-d-w[u][i],g[u][i]));
               ~^~~~~~~~~~~~
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:72:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<g[i].size();j++) vi[g[i][j]]=false;
               ~^~~~~~~~~~~~
skyscraper.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
skyscraper.cpp:35:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d",&st,&t1,&en,&t2);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:40:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&t1,&t2);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3192 KB Output is correct
2 Correct 4 ms 3192 KB Output is correct
3 Correct 6 ms 3384 KB Output is correct
4 Correct 5 ms 3384 KB Output is correct
5 Correct 5 ms 3384 KB Output is correct
6 Correct 4 ms 3384 KB Output is correct
7 Correct 5 ms 3384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3404 KB Output is correct
2 Correct 4 ms 3404 KB Output is correct
3 Correct 4 ms 3404 KB Output is correct
4 Correct 5 ms 3404 KB Output is correct
5 Correct 5 ms 3404 KB Output is correct
6 Correct 4 ms 3404 KB Output is correct
7 Correct 4 ms 3412 KB Output is correct
8 Correct 8 ms 3412 KB Output is correct
9 Correct 4 ms 3412 KB Output is correct
10 Correct 5 ms 3412 KB Output is correct
11 Correct 6 ms 3412 KB Output is correct
12 Correct 4 ms 3412 KB Output is correct
13 Correct 5 ms 3412 KB Output is correct
14 Correct 6 ms 3428 KB Output is correct
15 Correct 8 ms 3452 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3452 KB Output is correct
2 Correct 6 ms 3452 KB Output is correct
3 Correct 4 ms 3452 KB Output is correct
4 Correct 5 ms 3452 KB Output is correct
5 Correct 6 ms 3452 KB Output is correct
6 Correct 5 ms 3452 KB Output is correct
7 Correct 6 ms 3452 KB Output is correct
8 Correct 4 ms 3452 KB Output is correct
9 Correct 6 ms 3452 KB Output is correct
10 Correct 4 ms 3556 KB Output is correct
11 Correct 7 ms 3556 KB Output is correct
12 Correct 5 ms 3556 KB Output is correct
13 Correct 5 ms 3556 KB Output is correct
14 Correct 6 ms 3556 KB Output is correct
15 Correct 6 ms 3556 KB Output is correct
16 Correct 7 ms 3580 KB Output is correct
17 Correct 8 ms 3768 KB Output is correct
18 Correct 5 ms 3768 KB Output is correct
19 Correct 6 ms 3768 KB Output is correct
20 Correct 5 ms 3768 KB Output is correct
21 Correct 6 ms 3768 KB Output is correct
22 Correct 6 ms 3768 KB Output is correct
23 Correct 8 ms 3768 KB Output is correct
24 Correct 9 ms 3768 KB Output is correct
25 Correct 7 ms 3768 KB Output is correct
26 Correct 6 ms 3768 KB Output is correct
27 Correct 6 ms 3768 KB Output is correct
28 Correct 8 ms 3768 KB Output is correct
29 Correct 7 ms 3768 KB Output is correct
30 Correct 4 ms 3768 KB Output is correct
31 Correct 5 ms 3768 KB Output is correct
32 Correct 4 ms 3768 KB Output is correct
33 Correct 7 ms 3768 KB Output is correct
34 Correct 6 ms 3768 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3768 KB Output is correct
2 Correct 4 ms 3768 KB Output is correct
3 Correct 5 ms 3768 KB Output is correct
4 Correct 5 ms 3768 KB Output is correct
5 Correct 4 ms 3768 KB Output is correct
6 Correct 4 ms 3768 KB Output is correct
7 Correct 5 ms 3768 KB Output is correct
8 Correct 5 ms 3768 KB Output is correct
9 Correct 5 ms 3768 KB Output is correct
10 Correct 4 ms 3768 KB Output is correct
11 Correct 5 ms 3768 KB Output is correct
12 Correct 4 ms 3768 KB Output is correct
13 Correct 4 ms 3768 KB Output is correct
14 Correct 5 ms 3768 KB Output is correct
15 Correct 5 ms 3768 KB Output is correct
16 Correct 5 ms 3768 KB Output is correct
17 Correct 7 ms 3768 KB Output is correct
18 Correct 5 ms 3768 KB Output is correct
19 Correct 4 ms 3768 KB Output is correct
20 Correct 5 ms 3768 KB Output is correct
21 Correct 4 ms 3768 KB Output is correct
22 Correct 4 ms 3768 KB Output is correct
23 Correct 6 ms 3768 KB Output is correct
24 Correct 8 ms 3768 KB Output is correct
25 Correct 7 ms 3768 KB Output is correct
26 Correct 4 ms 3768 KB Output is correct
27 Correct 6 ms 3768 KB Output is correct
28 Correct 6 ms 3768 KB Output is correct
29 Correct 5 ms 3768 KB Output is correct
30 Correct 4 ms 3768 KB Output is correct
31 Correct 4 ms 3768 KB Output is correct
32 Correct 5 ms 3768 KB Output is correct
33 Correct 5 ms 3768 KB Output is correct
34 Correct 5 ms 3768 KB Output is correct
35 Correct 29 ms 6264 KB Output is correct
36 Correct 10 ms 6264 KB Output is correct
37 Correct 39 ms 6856 KB Output is correct
38 Correct 52 ms 7164 KB Output is correct
39 Correct 36 ms 7164 KB Output is correct
40 Correct 36 ms 7164 KB Output is correct
41 Correct 40 ms 7696 KB Output is correct
42 Correct 9 ms 7696 KB Output is correct
43 Correct 11 ms 7696 KB Output is correct
44 Correct 11 ms 7696 KB Output is correct
45 Correct 27 ms 7696 KB Output is correct
46 Correct 26 ms 7696 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7696 KB Output is correct
2 Correct 5 ms 7696 KB Output is correct
3 Correct 5 ms 7696 KB Output is correct
4 Correct 4 ms 7696 KB Output is correct
5 Correct 4 ms 7696 KB Output is correct
6 Correct 4 ms 7696 KB Output is correct
7 Correct 5 ms 7696 KB Output is correct
8 Correct 5 ms 7696 KB Output is correct
9 Correct 4 ms 7696 KB Output is correct
10 Correct 5 ms 7696 KB Output is correct
11 Correct 6 ms 7696 KB Output is correct
12 Correct 4 ms 7696 KB Output is correct
13 Correct 5 ms 7696 KB Output is correct
14 Correct 5 ms 7696 KB Output is correct
15 Correct 7 ms 7696 KB Output is correct
16 Correct 6 ms 7696 KB Output is correct
17 Correct 8 ms 7696 KB Output is correct
18 Correct 5 ms 7696 KB Output is correct
19 Correct 5 ms 7696 KB Output is correct
20 Correct 5 ms 7696 KB Output is correct
21 Correct 6 ms 7696 KB Output is correct
22 Correct 5 ms 7696 KB Output is correct
23 Correct 5 ms 7696 KB Output is correct
24 Correct 8 ms 7696 KB Output is correct
25 Correct 7 ms 7696 KB Output is correct
26 Correct 5 ms 7696 KB Output is correct
27 Correct 5 ms 7696 KB Output is correct
28 Correct 7 ms 7696 KB Output is correct
29 Correct 5 ms 7696 KB Output is correct
30 Correct 4 ms 7696 KB Output is correct
31 Correct 7 ms 7696 KB Output is correct
32 Correct 7 ms 7696 KB Output is correct
33 Correct 5 ms 7696 KB Output is correct
34 Correct 6 ms 7696 KB Output is correct
35 Correct 36 ms 7696 KB Output is correct
36 Correct 10 ms 7696 KB Output is correct
37 Correct 40 ms 7696 KB Output is correct
38 Correct 45 ms 7696 KB Output is correct
39 Correct 45 ms 7696 KB Output is correct
40 Correct 36 ms 7696 KB Output is correct
41 Correct 44 ms 7796 KB Output is correct
42 Correct 9 ms 7796 KB Output is correct
43 Correct 13 ms 7796 KB Output is correct
44 Correct 10 ms 7796 KB Output is correct
45 Correct 28 ms 7796 KB Output is correct
46 Correct 28 ms 7796 KB Output is correct
47 Correct 72 ms 13432 KB Output is correct
48 Correct 29 ms 13432 KB Output is correct
49 Correct 24 ms 13432 KB Output is correct
50 Correct 17 ms 13432 KB Output is correct
51 Correct 47 ms 13432 KB Output is correct
52 Correct 51 ms 13432 KB Output is correct
53 Correct 23 ms 13432 KB Output is correct
54 Correct 5 ms 13432 KB Output is correct
55 Correct 5 ms 13432 KB Output is correct
56 Correct 39 ms 13432 KB Output is correct
57 Correct 21 ms 13432 KB Output is correct
58 Correct 11 ms 13432 KB Output is correct
59 Correct 11 ms 13432 KB Output is correct
60 Correct 11 ms 13432 KB Output is correct
61 Correct 12 ms 13432 KB Output is correct
62 Correct 50 ms 13432 KB Output is correct
63 Correct 39 ms 13432 KB Output is correct
64 Correct 49 ms 13432 KB Output is correct
65 Correct 51 ms 13432 KB Output is correct
66 Correct 74 ms 13432 KB Output is correct
67 Correct 67 ms 13432 KB Output is correct