oj.uz

Submission #531133

# Submission time Handle Problem Language Result Execution time Memory
531133 2022-02-27T19:53:06 Z Hanksburger Jakarta Skyscrapers (APIO15_skyscraper) C++17
36 / 100
 150 ms 262148 KB 
#include <bits/stdc++.h>
using namespace std;
int dist[10500005], a[30005][175];
vector<int> adj[10500005];
deque<int> deq;
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n, m, s, t, sz;
	cin >> n >> m;
	sz=n;
	for (int i=0; i<m; i++)
	{
		int b, p;
		cin >> b >> p;
		if (i==0)
			s=b;
		else if (i==1)
			t=b;
		if (p*p<=m)
		{
			if (!a[b][p])
			{
				a[b%p][p]=sz;
				sz++;
				adj[a[b%p][p]].push_back(b%p*2);
				for (int j=b%p+p; j<n; j+=p)
				{
					a[j][p]=sz;
					sz++;
					adj[a[j][p]].push_back(j*2);
					adj[a[j][p]].push_back(a[j-p][p]*2+1);
					adj[a[j-p][p]].push_back(a[j][p]*2+1);
				}
			}
			adj[b].push_back(a[b][p]*2);
		}
		else
		{
			int prev=b;
			for (int j=b-p; j>=0; j-=p)
			{
				adj[prev].push_back(sz*2+1);
				adj[sz].push_back(j*2);
				prev=sz;
				sz++;
			}
			prev=b;
			for (int j=b+p; j<n; j+=p)
			{
				adj[prev].push_back(sz*2+1);
				adj[sz].push_back(j*2);
				prev=sz;
				sz++;
			}
		}
	}
	for (int i=0; i<sz; i++)
		dist[i]=1e9;
	dist[s]=0;
	deq.push_back(s);
	while (!deq.empty())
	{
		int u=deq.front();
		deq.pop_front();
		for (int i=0; i<adj[u].size(); i++)
		{
			int v=adj[u][i]>>1, w=adj[u][i]&1;
			if (dist[v]==1e9)
			{
				dist[v]=dist[u]+w;
				if (w)
					deq.push_back(v);
				else
					deq.push_front(v);
			}
		}
	}
	if (dist[t]==1e9)
		cout << -1;
	else
		cout << dist[t];
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |   for (int i=0; i<adj[u].size(); i++)
      |                 ~^~~~~~~~~~~~~~
skyscraper.cpp:81:12: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   81 |  if (dist[t]==1e9)
      |      ~~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 246792 KB Output is correct
2 Correct 124 ms 246852 KB Output is correct
3 Correct 110 ms 246932 KB Output is correct
4 Correct 111 ms 246852 KB Output is correct
5 Correct 114 ms 246820 KB Output is correct
6 Correct 126 ms 246920 KB Output is correct
7 Correct 109 ms 246852 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 111 ms 246856 KB Output is correct
2 Correct 111 ms 246876 KB Output is correct
3 Correct 107 ms 246868 KB Output is correct
4 Correct 110 ms 246848 KB Output is correct
5 Correct 111 ms 246820 KB Output is correct
6 Correct 114 ms 246804 KB Output is correct
7 Correct 110 ms 246848 KB Output is correct
8 Correct 110 ms 246932 KB Output is correct
9 Correct 112 ms 246908 KB Output is correct
10 Correct 112 ms 246948 KB Output is correct
11 Correct 109 ms 247088 KB Output is correct
12 Correct 108 ms 246980 KB Output is correct
13 Correct 112 ms 246980 KB Output is correct
14 Correct 128 ms 247072 KB Output is correct
15 Correct 111 ms 247108 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 246796 KB Output is correct
2 Correct 109 ms 246860 KB Output is correct
3 Correct 113 ms 246796 KB Output is correct
4 Correct 110 ms 246768 KB Output is correct
5 Correct 111 ms 246764 KB Output is correct
6 Correct 140 ms 246812 KB Output is correct
7 Correct 113 ms 246772 KB Output is correct
8 Correct 110 ms 246904 KB Output is correct
9 Correct 110 ms 246928 KB Output is correct
10 Correct 114 ms 246900 KB Output is correct
11 Correct 111 ms 247036 KB Output is correct
12 Correct 118 ms 246980 KB Output is correct
13 Correct 110 ms 246916 KB Output is correct
14 Correct 111 ms 247104 KB Output is correct
15 Correct 112 ms 247080 KB Output is correct
16 Correct 112 ms 247036 KB Output is correct
17 Correct 121 ms 247840 KB Output is correct
18 Correct 111 ms 248208 KB Output is correct
19 Correct 111 ms 248324 KB Output is correct
20 Correct 110 ms 248304 KB Output is correct
21 Correct 115 ms 247168 KB Output is correct
22 Correct 118 ms 248196 KB Output is correct
23 Correct 118 ms 248160 KB Output is correct
24 Correct 113 ms 248580 KB Output is correct
25 Correct 113 ms 248456 KB Output is correct
26 Correct 119 ms 248592 KB Output is correct
27 Correct 113 ms 248388 KB Output is correct
28 Correct 114 ms 249004 KB Output is correct
29 Correct 119 ms 250328 KB Output is correct
30 Correct 112 ms 248772 KB Output is correct
31 Correct 117 ms 249480 KB Output is correct
32 Correct 117 ms 249076 KB Output is correct
33 Correct 126 ms 252356 KB Output is correct
34 Correct 127 ms 252444 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 246792 KB Output is correct
2 Correct 128 ms 246824 KB Output is correct
3 Correct 117 ms 246796 KB Output is correct
4 Correct 110 ms 246840 KB Output is correct
5 Correct 110 ms 246848 KB Output is correct
6 Correct 111 ms 246824 KB Output is correct
7 Correct 133 ms 246856 KB Output is correct
8 Correct 119 ms 246912 KB Output is correct
9 Correct 113 ms 246876 KB Output is correct
10 Correct 109 ms 247000 KB Output is correct
11 Correct 117 ms 247088 KB Output is correct
12 Correct 109 ms 246916 KB Output is correct
13 Correct 110 ms 246960 KB Output is correct
14 Correct 113 ms 247064 KB Output is correct
15 Correct 119 ms 247152 KB Output is correct
16 Correct 113 ms 247148 KB Output is correct
17 Correct 110 ms 247776 KB Output is correct
18 Correct 110 ms 248204 KB Output is correct
19 Correct 112 ms 248416 KB Output is correct
20 Correct 110 ms 248356 KB Output is correct
21 Correct 111 ms 247120 KB Output is correct
22 Correct 111 ms 248196 KB Output is correct
23 Correct 113 ms 248104 KB Output is correct
24 Correct 113 ms 248588 KB Output is correct
25 Correct 111 ms 248388 KB Output is correct
26 Correct 115 ms 248656 KB Output is correct
27 Correct 113 ms 248436 KB Output is correct
28 Correct 112 ms 249028 KB Output is correct
29 Correct 120 ms 250348 KB Output is correct
30 Correct 116 ms 248808 KB Output is correct
31 Correct 118 ms 249376 KB Output is correct
32 Correct 112 ms 249040 KB Output is correct
33 Correct 126 ms 252380 KB Output is correct
34 Correct 141 ms 252472 KB Output is correct
35 Correct 127 ms 250844 KB Output is correct
36 Correct 112 ms 248132 KB Output is correct
37 Correct 140 ms 254056 KB Output is correct
38 Correct 149 ms 253252 KB Output is correct
39 Correct 147 ms 253496 KB Output is correct
40 Correct 134 ms 253252 KB Output is correct
41 Correct 139 ms 253268 KB Output is correct
42 Correct 113 ms 248748 KB Output is correct
43 Correct 113 ms 248704 KB Output is correct
44 Correct 114 ms 248560 KB Output is correct
45 Runtime error 139 ms 262148 KB Execution killed with signal 9
46 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 246848 KB Output is correct
2 Correct 110 ms 246876 KB Output is correct
3 Correct 110 ms 246880 KB Output is correct
4 Correct 110 ms 246852 KB Output is correct
5 Correct 117 ms 246768 KB Output is correct
6 Correct 111 ms 246812 KB Output is correct
7 Correct 111 ms 246852 KB Output is correct
8 Correct 113 ms 246824 KB Output is correct
9 Correct 112 ms 246928 KB Output is correct
10 Correct 110 ms 246996 KB Output is correct
11 Correct 112 ms 246992 KB Output is correct
12 Correct 114 ms 246928 KB Output is correct
13 Correct 110 ms 246972 KB Output is correct
14 Correct 111 ms 247088 KB Output is correct
15 Correct 111 ms 247128 KB Output is correct
16 Correct 111 ms 247108 KB Output is correct
17 Correct 119 ms 247912 KB Output is correct
18 Correct 116 ms 248272 KB Output is correct
19 Correct 109 ms 248388 KB Output is correct
20 Correct 114 ms 248328 KB Output is correct
21 Correct 107 ms 247084 KB Output is correct
22 Correct 113 ms 248288 KB Output is correct
23 Correct 112 ms 248192 KB Output is correct
24 Correct 117 ms 248500 KB Output is correct
25 Correct 112 ms 248388 KB Output is correct
26 Correct 117 ms 248592 KB Output is correct
27 Correct 111 ms 248496 KB Output is correct
28 Correct 119 ms 248940 KB Output is correct
29 Correct 124 ms 250396 KB Output is correct
30 Correct 120 ms 248744 KB Output is correct
31 Correct 117 ms 249332 KB Output is correct
32 Correct 113 ms 248964 KB Output is correct
33 Correct 126 ms 252424 KB Output is correct
34 Correct 128 ms 252352 KB Output is correct
35 Correct 125 ms 250820 KB Output is correct
36 Correct 116 ms 248256 KB Output is correct
37 Correct 141 ms 253988 KB Output is correct
38 Correct 138 ms 253204 KB Output is correct
39 Correct 136 ms 253252 KB Output is correct
40 Correct 146 ms 253320 KB Output is correct
41 Correct 137 ms 253220 KB Output is correct
42 Correct 150 ms 248788 KB Output is correct
43 Correct 124 ms 248676 KB Output is correct
44 Correct 114 ms 248584 KB Output is correct
45 Runtime error 141 ms 262148 KB Execution killed with signal 9
46 Halted 0 ms 0 KB -