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Submission #260787

# Submission time Handle Problem Language Result Execution time Memory
260787 2020-08-11T01:35:58 Z T0p_ Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 702 ms 6004 KB 
#include<bits/stdc++.h>
using namespace std;

struct DJK
{
	int node;
	long long weight;
	bool operator < (const DJK & o) const
	{
		return weight > o.weight;		
	}	
};

vector<int> B[30003];
long long dis[30003];
bool visit[30003];
priority_queue<DJK> djk;

int main() 
{
	int n, m, s, e;
	scanf(" %d %d",&n,&m);
	for(int i=1, b, p ; i<=m ; i++)
	{
		scanf(" %d %d",&b,&p);
		b++;
		B[b].push_back(p);
		if(i == 1) s = b;
		if(i == 2) e = b;
	}
	for(int i=1 ; i<=n ; i++)
		dis[i] = 1e15;
	dis[s] = 0;
	djk.push({s, 0});
	while(!djk.empty())
	{
		int nown = djk.top().node;
		long long noww = djk.top().weight;
		djk.pop();
		if(visit[nown]) continue ;
		visit[nown] = true;
		if(nown == e)
		{
			printf("%lld\n",noww);
			return 0;
		}
		for(auto x : B[nown])
		{
			//left
			for(int i=1 ; nown - x*i >= 1 ; i++)
				if(dis[nown - x*i] > dis[nown] + i)
				{
					dis[nown - x*i] = dis[nown]+i;
					djk.push({nown - x*i, dis[nown - x*i]});
				}
			//right
			for(int i=1 ; nown + x*i <= n ; i++)
				if(dis[nown + x*i] > dis[nown] + i)
				{
					dis[nown + x*i] = dis[nown]+i;
					djk.push({nown + x*i, dis[nown + x*i]});
				}
		}
	}
	printf("-1\n");
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf(" %d %d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:25:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %d %d",&b,&p);
   ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:42:3: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(nown == e)
   ^~
skyscraper.cpp:34:10: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
  djk.push({s, 0});
  ~~~~~~~~^~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 2 ms 1024 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 2 ms 1024 KB Output is correct
14 Correct 2 ms 1024 KB Output is correct
15 Correct 2 ms 1024 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 2 ms 1024 KB Output is correct
12 Correct 2 ms 1024 KB Output is correct
13 Correct 2 ms 1024 KB Output is correct
14 Correct 1 ms 1024 KB Output is correct
15 Correct 1 ms 1024 KB Output is correct
16 Correct 2 ms 1024 KB Output is correct
17 Correct 2 ms 1088 KB Output is correct
18 Correct 1 ms 1024 KB Output is correct
19 Correct 1 ms 1024 KB Output is correct
20 Correct 5 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1024 KB Output is correct
23 Correct 2 ms 1152 KB Output is correct
24 Correct 2 ms 1152 KB Output is correct
25 Correct 2 ms 1152 KB Output is correct
26 Correct 2 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 4 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 2 ms 1024 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 2 ms 1024 KB Output is correct
15 Correct 2 ms 1024 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 2 ms 1152 KB Output is correct
18 Correct 1 ms 1024 KB Output is correct
19 Correct 1 ms 1024 KB Output is correct
20 Correct 5 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1024 KB Output is correct
23 Correct 2 ms 1152 KB Output is correct
24 Correct 2 ms 1152 KB Output is correct
25 Correct 2 ms 1152 KB Output is correct
26 Correct 2 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 3 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct
35 Correct 12 ms 1536 KB Output is correct
36 Correct 3 ms 1152 KB Output is correct
37 Correct 7 ms 1536 KB Output is correct
38 Correct 11 ms 1792 KB Output is correct
39 Correct 10 ms 1768 KB Output is correct
40 Correct 10 ms 1792 KB Output is correct
41 Correct 11 ms 1792 KB Output is correct
42 Correct 10 ms 1536 KB Output is correct
43 Correct 10 ms 1544 KB Output is correct
44 Correct 53 ms 1544 KB Output is correct
45 Correct 10 ms 1920 KB Output is correct
46 Correct 10 ms 1792 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Correct 1 ms 1024 KB Output is correct
3 Correct 1 ms 1024 KB Output is correct
4 Correct 1 ms 1024 KB Output is correct
5 Correct 1 ms 1024 KB Output is correct
6 Correct 1 ms 1024 KB Output is correct
7 Correct 1 ms 1024 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1024 KB Output is correct
11 Correct 2 ms 1024 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 2 ms 1024 KB Output is correct
14 Correct 2 ms 1024 KB Output is correct
15 Correct 1 ms 1024 KB Output is correct
16 Correct 1 ms 1024 KB Output is correct
17 Correct 2 ms 1152 KB Output is correct
18 Correct 1 ms 1080 KB Output is correct
19 Correct 1 ms 1024 KB Output is correct
20 Correct 5 ms 1152 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 1024 KB Output is correct
23 Correct 2 ms 1152 KB Output is correct
24 Correct 2 ms 1152 KB Output is correct
25 Correct 2 ms 1152 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1152 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 3 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct
35 Correct 9 ms 1536 KB Output is correct
36 Correct 3 ms 1152 KB Output is correct
37 Correct 7 ms 1536 KB Output is correct
38 Correct 12 ms 1792 KB Output is correct
39 Correct 11 ms 1664 KB Output is correct
40 Correct 11 ms 1792 KB Output is correct
41 Correct 11 ms 1792 KB Output is correct
42 Correct 7 ms 1536 KB Output is correct
43 Correct 7 ms 1536 KB Output is correct
44 Correct 54 ms 1536 KB Output is correct
45 Correct 13 ms 1792 KB Output is correct
46 Correct 10 ms 1792 KB Output is correct
47 Correct 12 ms 2812 KB Output is correct
48 Correct 10 ms 1920 KB Output is correct
49 Correct 9 ms 1920 KB Output is correct
50 Correct 7 ms 1792 KB Output is correct
51 Correct 27 ms 4472 KB Output is correct
52 Correct 22 ms 3452 KB Output is correct
53 Correct 14 ms 2560 KB Output is correct
54 Correct 3 ms 1664 KB Output is correct
55 Correct 3 ms 1792 KB Output is correct
56 Correct 702 ms 3316 KB Output is correct
57 Correct 5 ms 3572 KB Output is correct
58 Correct 686 ms 1920 KB Output is correct
59 Correct 11 ms 2172 KB Output is correct
60 Correct 10 ms 1920 KB Output is correct
61 Correct 10 ms 2040 KB Output is correct
62 Correct 14 ms 2560 KB Output is correct
63 Correct 31 ms 3960 KB Output is correct
64 Correct 30 ms 3960 KB Output is correct
65 Correct 38 ms 6004 KB Output is correct
66 Correct 52 ms 5872 KB Output is correct
67 Correct 41 ms 5872 KB Output is correct