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Submission #335233

# Submission time Handle Problem Language Result Execution time Memory
335233 2020-12-11T16:00:11 Z hivakarami Jakarta Skyscrapers (APIO15_skyscraper) C++14
36 / 100
 407 ms 262148 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
typedef long long int ll;
typedef long double doublel;
#define f first
#define s second
 
const int N = 1e5 + 100;
const ll base = 313;
const ll mod = 1e9 + 9;	
const int inf = 1e8;	

set<pair<int, int>> s;
int dis[N];
vector<pair<int, int>> adj[N];

int n, m, b, p;

void dij(int u)
{
	for(int i = 0; i < n; i++)
		dis[i] = inf;
	dis[u] = 0;
	for(int i = 0; i < n; i++)	
		s.insert({dis[i], i});
	while(!s.empty())
	{
		int x = s.begin() -> s;
		s.erase(s.begin());
		
		for(auto y : adj[x])
		{
			if(dis[y.f] > dis[x] + y.s)
			{
				s.erase({dis[y.f], y.f});
				dis[y.f] = dis[x] + y.s;
				s.insert({dis[y.f], y.f});
			}
		}
	}	
		
		
}





int main()
{
    ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);	

	int x, y;
	cin >> n >> m;
	for(int i = 0; i < m; i++)
	{
		cin >> b >> p;
		for(int i = b+p; i < n; i += p)
		{
			adj[b].push_back({i, (i-b)/p});
			//cout << i << ' ' << b << ' ' << (i-b)/p << endl; 
		}
			
		for(int i = b-p; i >= 0; i -= p)
		{
			adj[b].push_back({i, (b-i)/p});
			//cout << i << ' ' << b << ' ' << (b-i)/p << endl;
		}
		
		if(i == 0)
			x = b;
		if(i == 1)
			y = b;
		
	}
	
	dij(x);
	
	if(dis[y] >= inf)
		dis[y] = -1;
	cout << dis[y] << endl;
	
	
	

    return 0;
}

 
 	
 	


/*
5 3
0 2
1 1
4 1
*/

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:83:15: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
   83 |  cout << dis[y] << endl;
      |               ^
skyscraper.cpp:79:5: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   79 |  dij(x);
      |  ~~~^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 2 ms 2688 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 3 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2668 KB Output is correct
7 Correct 2 ms 2668 KB Output is correct
8 Correct 3 ms 2668 KB Output is correct
9 Correct 2 ms 2668 KB Output is correct
10 Correct 3 ms 2668 KB Output is correct
11 Correct 3 ms 2816 KB Output is correct
12 Correct 7 ms 4840 KB Output is correct
13 Correct 7 ms 4848 KB Output is correct
14 Correct 3 ms 2796 KB Output is correct
15 Correct 2 ms 2796 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2816 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2680 KB Output is correct
7 Correct 2 ms 2668 KB Output is correct
8 Correct 2 ms 2668 KB Output is correct
9 Correct 2 ms 2668 KB Output is correct
10 Correct 2 ms 2668 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 6 ms 4840 KB Output is correct
13 Correct 7 ms 4868 KB Output is correct
14 Correct 3 ms 2796 KB Output is correct
15 Correct 2 ms 2796 KB Output is correct
16 Correct 3 ms 2796 KB Output is correct
17 Correct 5 ms 2924 KB Output is correct
18 Correct 3 ms 2796 KB Output is correct
19 Correct 3 ms 2796 KB Output is correct
20 Correct 71 ms 34856 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 3 ms 2796 KB Output is correct
23 Correct 3 ms 2796 KB Output is correct
24 Correct 4 ms 2924 KB Output is correct
25 Correct 4 ms 2924 KB Output is correct
26 Correct 80 ms 35768 KB Output is correct
27 Correct 79 ms 35672 KB Output is correct
28 Correct 4 ms 3072 KB Output is correct
29 Correct 7 ms 3436 KB Output is correct
30 Correct 4 ms 3052 KB Output is correct
31 Correct 6 ms 3308 KB Output is correct
32 Correct 4 ms 3052 KB Output is correct
33 Correct 9 ms 4076 KB Output is correct
34 Correct 9 ms 3948 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2668 KB Output is correct
7 Correct 2 ms 2668 KB Output is correct
8 Correct 2 ms 2668 KB Output is correct
9 Correct 2 ms 2668 KB Output is correct
10 Correct 2 ms 2668 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 6 ms 4840 KB Output is correct
13 Correct 7 ms 4868 KB Output is correct
14 Correct 3 ms 2796 KB Output is correct
15 Correct 3 ms 2796 KB Output is correct
16 Correct 2 ms 2796 KB Output is correct
17 Correct 4 ms 2924 KB Output is correct
18 Correct 4 ms 2796 KB Output is correct
19 Correct 3 ms 2796 KB Output is correct
20 Correct 71 ms 34924 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 3 ms 2796 KB Output is correct
23 Correct 3 ms 2924 KB Output is correct
24 Correct 4 ms 2924 KB Output is correct
25 Correct 4 ms 2924 KB Output is correct
26 Correct 79 ms 35784 KB Output is correct
27 Correct 77 ms 35696 KB Output is correct
28 Correct 5 ms 3052 KB Output is correct
29 Correct 7 ms 3436 KB Output is correct
30 Correct 4 ms 3052 KB Output is correct
31 Correct 5 ms 3180 KB Output is correct
32 Correct 6 ms 3052 KB Output is correct
33 Correct 9 ms 4076 KB Output is correct
34 Correct 11 ms 3948 KB Output is correct
35 Correct 11 ms 4204 KB Output is correct
36 Correct 5 ms 2924 KB Output is correct
37 Correct 15 ms 5996 KB Output is correct
38 Correct 16 ms 5228 KB Output is correct
39 Correct 16 ms 5356 KB Output is correct
40 Correct 16 ms 5356 KB Output is correct
41 Correct 16 ms 5228 KB Output is correct
42 Runtime error 407 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2668 KB Output is correct
7 Correct 2 ms 2688 KB Output is correct
8 Correct 2 ms 2668 KB Output is correct
9 Correct 2 ms 2668 KB Output is correct
10 Correct 2 ms 2668 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 7 ms 4840 KB Output is correct
13 Correct 7 ms 4848 KB Output is correct
14 Correct 3 ms 2796 KB Output is correct
15 Correct 2 ms 2796 KB Output is correct
16 Correct 3 ms 2796 KB Output is correct
17 Correct 4 ms 2924 KB Output is correct
18 Correct 3 ms 2796 KB Output is correct
19 Correct 3 ms 2796 KB Output is correct
20 Correct 71 ms 34924 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 3 ms 2796 KB Output is correct
23 Correct 3 ms 2796 KB Output is correct
24 Correct 4 ms 2924 KB Output is correct
25 Correct 4 ms 2924 KB Output is correct
26 Correct 79 ms 35768 KB Output is correct
27 Correct 76 ms 35688 KB Output is correct
28 Correct 4 ms 3052 KB Output is correct
29 Correct 7 ms 3436 KB Output is correct
30 Correct 4 ms 3052 KB Output is correct
31 Correct 5 ms 3180 KB Output is correct
32 Correct 4 ms 3052 KB Output is correct
33 Correct 9 ms 4096 KB Output is correct
34 Correct 9 ms 3948 KB Output is correct
35 Correct 11 ms 4204 KB Output is correct
36 Correct 4 ms 2924 KB Output is correct
37 Correct 19 ms 5996 KB Output is correct
38 Correct 15 ms 5228 KB Output is correct
39 Correct 16 ms 5484 KB Output is correct
40 Correct 16 ms 5356 KB Output is correct
41 Correct 16 ms 5228 KB Output is correct
42 Runtime error 399 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
43 Halted 0 ms 0 KB -