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Submission #924616

# Submission time Handle Problem Language Result Execution time Memory
924616 2024-02-09T09:54:55 Z KaleemRazaSyed Toll (BOI17_toll) C++17
100 / 100
 174 ms 44884 KB 
#include<iostream>
 
using namespace std;
 
typedef long long ll;
 
const int N = 50001, C = 6, K = 17;
const ll inf = 1e18;
ll G[N][C];
ll dis[N][C][K];
 
int main()
{
  int k, n, m, o;
  cin >> k >> n >> m >> o;
 
  for(int i = 0; i < n; i++)
    for(int j = 0; j < k; j++)
      G[i][j] = inf;
 
  for(int i = 0; i < n; i ++)
    for(int j = 0; j < k; j++)
      for(int l = 0; l < K; l++)
	dis[i][j][k] = inf;
  
  for(int i = 0; i < m; i++)
    {
      ll a, b, t;
      cin >> a >> b >> t;
      G[a][b % k] = min(G[a][b % k], t);
    }
 
  for(int i = n - 1; i >= 0; i--)
    {
      for(int j = 0; j < k; j++)
	dis[i][j][0] = G[i][j];
 
      for(int p = 1; p < K; p++)
	for(int j = 0; j < k && (1 << p) * k + i - i%k + j < n; j++)
	  {
	    ll mx = inf;
	    for(int l = 0; l < k; l++)
	      {
		int v = (1 << (p-1)) * k + i - i%k + l;
		if(v >= n) break;
		mx = min(mx, dis[i][l][p - 1] + dis[v][j][p-1]);
	      }
	    dis[i][j][p] = mx;
	  }
    }
  
  while(o--)
    {
      int a, b;
      cin >> a >> b;
      int d = (b / k) - (a / k);
      
      if(d == 0)
	{
	  cout << -1 << '\n';
	  continue;
	}
      ll dist[k], v[k];
      
      int f = __builtin_ctz(d);
      for(int i = 0; i < k; i++)
	{
	  dist[i] = dis[a][i][f];
	  v[i] = (a - a % k) + (1 << f) * k + i;
	}
 
      for(int l = f + 1; l < K; l++)
	if((1 << l) & d)
	  {
	    ll newD[k];
	    for(int i = 0; i < k; i++)
	      newD[i] = inf;
 
	    for(int i = 0; i < k; i++)
	      for(int j = 0; j < k; j++)
		newD[j] = min(dist[i] + dis[v[i]][j][l], newD[j]);
 
	    for(int i = 0; i < k; i++)
	      dist[i] = newD[i], v[i] += (1 << l) * k;
	  }
 
      cout << (dist[b % k] >= inf ? -1 : dist[b%k]) << '\n';
    }
  
  
  return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 43220 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 3 ms 4700 KB Output is correct
6 Correct 4 ms 4700 KB Output is correct
7 Correct 3 ms 4700 KB Output is correct
8 Correct 65 ms 43196 KB Output is correct
9 Correct 64 ms 43208 KB Output is correct
10 Correct 33 ms 42828 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 97 ms 43984 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2496 KB Output is correct
7 Correct 22 ms 4804 KB Output is correct
8 Correct 19 ms 4700 KB Output is correct
9 Correct 60 ms 43316 KB Output is correct
10 Correct 123 ms 44080 KB Output is correct
11 Correct 92 ms 43944 KB Output is correct
12 Correct 89 ms 43600 KB Output is correct
13 Correct 108 ms 28976 KB Output is correct
14 Correct 68 ms 28536 KB Output is correct
15 Correct 67 ms 28348 KB Output is correct
16 Correct 75 ms 28332 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2496 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4696 KB Output is correct
7 Correct 2 ms 4696 KB Output is correct
8 Correct 4 ms 4792 KB Output is correct
9 Correct 3 ms 4700 KB Output is correct
10 Correct 44 ms 43220 KB Output is correct
11 Correct 76 ms 43940 KB Output is correct
12 Correct 102 ms 44068 KB Output is correct
13 Correct 113 ms 44368 KB Output is correct
14 Correct 125 ms 43948 KB Output is correct
15 Correct 70 ms 28264 KB Output is correct
16 Correct 59 ms 28244 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2496 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4696 KB Output is correct
7 Correct 2 ms 4696 KB Output is correct
8 Correct 4 ms 4792 KB Output is correct
9 Correct 3 ms 4700 KB Output is correct
10 Correct 44 ms 43220 KB Output is correct
11 Correct 76 ms 43940 KB Output is correct
12 Correct 102 ms 44068 KB Output is correct
13 Correct 113 ms 44368 KB Output is correct
14 Correct 125 ms 43948 KB Output is correct
15 Correct 70 ms 28264 KB Output is correct
16 Correct 59 ms 28244 KB Output is correct
17 Correct 87 ms 43956 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2552 KB Output is correct
23 Correct 6 ms 4700 KB Output is correct
24 Correct 6 ms 4788 KB Output is correct
25 Correct 8 ms 4700 KB Output is correct
26 Correct 8 ms 4696 KB Output is correct
27 Correct 49 ms 43208 KB Output is correct
28 Correct 105 ms 44212 KB Output is correct
29 Correct 143 ms 44884 KB Output is correct
30 Correct 99 ms 43924 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 43220 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 3 ms 4700 KB Output is correct
6 Correct 4 ms 4700 KB Output is correct
7 Correct 3 ms 4700 KB Output is correct
8 Correct 65 ms 43196 KB Output is correct
9 Correct 64 ms 43208 KB Output is correct
10 Correct 33 ms 42828 KB Output is correct
11 Correct 97 ms 43984 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2496 KB Output is correct
17 Correct 22 ms 4804 KB Output is correct
18 Correct 19 ms 4700 KB Output is correct
19 Correct 60 ms 43316 KB Output is correct
20 Correct 123 ms 44080 KB Output is correct
21 Correct 92 ms 43944 KB Output is correct
22 Correct 89 ms 43600 KB Output is correct
23 Correct 108 ms 28976 KB Output is correct
24 Correct 68 ms 28536 KB Output is correct
25 Correct 67 ms 28348 KB Output is correct
26 Correct 75 ms 28332 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 0 ms 2496 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 4696 KB Output is correct
33 Correct 2 ms 4696 KB Output is correct
34 Correct 4 ms 4792 KB Output is correct
35 Correct 3 ms 4700 KB Output is correct
36 Correct 44 ms 43220 KB Output is correct
37 Correct 76 ms 43940 KB Output is correct
38 Correct 102 ms 44068 KB Output is correct
39 Correct 113 ms 44368 KB Output is correct
40 Correct 125 ms 43948 KB Output is correct
41 Correct 70 ms 28264 KB Output is correct
42 Correct 59 ms 28244 KB Output is correct
43 Correct 87 ms 43956 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2392 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2552 KB Output is correct
49 Correct 6 ms 4700 KB Output is correct
50 Correct 6 ms 4788 KB Output is correct
51 Correct 8 ms 4700 KB Output is correct
52 Correct 8 ms 4696 KB Output is correct
53 Correct 49 ms 43208 KB Output is correct
54 Correct 105 ms 44212 KB Output is correct
55 Correct 143 ms 44884 KB Output is correct
56 Correct 99 ms 43924 KB Output is correct
57 Correct 174 ms 44624 KB Output is correct
58 Correct 65 ms 43344 KB Output is correct
59 Correct 102 ms 43856 KB Output is correct