oj.uz

Submission #335229

# Submission time Handle Problem Language Result Execution time Memory
335229 2020-12-11T15:50:28 Z hivakarami Jakarta Skyscrapers (APIO15_skyscraper) C++14
36 / 100
 402 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 = 30000 + 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 1 ms 1004 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 2 ms 1004 KB Output is correct
8 Correct 2 ms 1004 KB Output is correct
9 Correct 1 ms 1004 KB Output is correct
10 Correct 1 ms 1132 KB Output is correct
11 Correct 2 ms 1132 KB Output is correct
12 Correct 5 ms 3304 KB Output is correct
13 Correct 6 ms 3312 KB Output is correct
14 Correct 2 ms 1132 KB Output is correct
15 Correct 2 ms 1132 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1004 KB Output is correct
9 Correct 1 ms 1004 KB Output is correct
10 Correct 1 ms 1132 KB Output is correct
11 Correct 2 ms 1280 KB Output is correct
12 Correct 6 ms 3324 KB Output is correct
13 Correct 6 ms 3312 KB Output is correct
14 Correct 1 ms 1132 KB Output is correct
15 Correct 1 ms 1132 KB Output is correct
16 Correct 1 ms 1132 KB Output is correct
17 Correct 3 ms 1388 KB Output is correct
18 Correct 2 ms 1260 KB Output is correct
19 Correct 2 ms 1260 KB Output is correct
20 Correct 73 ms 33388 KB Output is correct
21 Correct 1 ms 1132 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 2 ms 1260 KB Output is correct
24 Correct 3 ms 1260 KB Output is correct
25 Correct 3 ms 1260 KB Output is correct
26 Correct 78 ms 34104 KB Output is correct
27 Correct 75 ms 34152 KB Output is correct
28 Correct 3 ms 1408 KB Output is correct
29 Correct 6 ms 1772 KB Output is correct
30 Correct 3 ms 1388 KB Output is correct
31 Correct 4 ms 1516 KB Output is correct
32 Correct 4 ms 1388 KB Output is correct
33 Correct 7 ms 2412 KB Output is correct
34 Correct 7 ms 2412 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Correct 2 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1004 KB Output is correct
8 Correct 1 ms 1004 KB Output is correct
9 Correct 1 ms 1004 KB Output is correct
10 Correct 1 ms 1132 KB Output is correct
11 Correct 2 ms 1132 KB Output is correct
12 Correct 6 ms 3196 KB Output is correct
13 Correct 6 ms 3312 KB Output is correct
14 Correct 2 ms 1132 KB Output is correct
15 Correct 2 ms 1132 KB Output is correct
16 Correct 1 ms 1132 KB Output is correct
17 Correct 3 ms 1388 KB Output is correct
18 Correct 2 ms 1260 KB Output is correct
19 Correct 2 ms 1260 KB Output is correct
20 Correct 69 ms 33260 KB Output is correct
21 Correct 1 ms 1132 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 3 ms 1260 KB Output is correct
24 Correct 3 ms 1260 KB Output is correct
25 Correct 3 ms 1260 KB Output is correct
26 Correct 78 ms 34284 KB Output is correct
27 Correct 74 ms 34280 KB Output is correct
28 Correct 3 ms 1388 KB Output is correct
29 Correct 6 ms 1772 KB Output is correct
30 Correct 3 ms 1388 KB Output is correct
31 Correct 4 ms 1516 KB Output is correct
32 Correct 3 ms 1388 KB Output is correct
33 Correct 7 ms 2412 KB Output is correct
34 Correct 8 ms 2412 KB Output is correct
35 Correct 10 ms 2668 KB Output is correct
36 Correct 4 ms 1260 KB Output is correct
37 Correct 13 ms 4332 KB Output is correct
38 Correct 15 ms 3692 KB Output is correct
39 Correct 14 ms 3820 KB Output is correct
40 Correct 14 ms 3692 KB Output is correct
41 Correct 14 ms 3692 KB Output is correct
42 Runtime error 402 ms 262144 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 1 ms 1004 KB Output is correct
2 Correct 1 ms 1004 KB Output is correct
3 Correct 1 ms 1004 KB Output is correct
4 Correct 1 ms 1004 KB Output is correct
5 Correct 1 ms 1004 KB Output is correct
6 Correct 1 ms 1004 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1004 KB Output is correct
9 Correct 1 ms 1004 KB Output is correct
10 Correct 2 ms 1132 KB Output is correct
11 Correct 2 ms 1132 KB Output is correct
12 Correct 6 ms 3304 KB Output is correct
13 Correct 6 ms 3312 KB Output is correct
14 Correct 2 ms 1132 KB Output is correct
15 Correct 1 ms 1132 KB Output is correct
16 Correct 1 ms 1132 KB Output is correct
17 Correct 3 ms 1388 KB Output is correct
18 Correct 2 ms 1260 KB Output is correct
19 Correct 2 ms 1260 KB Output is correct
20 Correct 71 ms 33260 KB Output is correct
21 Correct 1 ms 1132 KB Output is correct
22 Correct 2 ms 1260 KB Output is correct
23 Correct 2 ms 1260 KB Output is correct
24 Correct 3 ms 1260 KB Output is correct
25 Correct 3 ms 1260 KB Output is correct
26 Correct 81 ms 34120 KB Output is correct
27 Correct 79 ms 34160 KB Output is correct
28 Correct 3 ms 1388 KB Output is correct
29 Correct 6 ms 1772 KB Output is correct
30 Correct 3 ms 1388 KB Output is correct
31 Correct 4 ms 1516 KB Output is correct
32 Correct 3 ms 1388 KB Output is correct
33 Correct 7 ms 2412 KB Output is correct
34 Correct 8 ms 2412 KB Output is correct
35 Correct 10 ms 2668 KB Output is correct
36 Correct 3 ms 1260 KB Output is correct
37 Correct 13 ms 4332 KB Output is correct
38 Correct 17 ms 3692 KB Output is correct
39 Correct 14 ms 3820 KB Output is correct
40 Correct 15 ms 3692 KB Output is correct
41 Correct 16 ms 3564 KB Output is correct
42 Runtime error 400 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
43 Halted 0 ms 0 KB -