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Submission #240094

# Submission time Handle Problem Language Result Execution time Memory
240094 2020-06-18T02:21:30 Z neihcr7j Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 243704 KB 
#include<bits/stdc++.h>
 
#define oo 1000000000
#define maxm 4000000
#define maxn 50005
#define block 220
 
using namespace std;
typedef long long ll;
 
int n, m;
int b[maxn], p[maxn];
 
vector < pair < int, int > > g[maxm];
 
int node(int u, int x) {return x * n + u;}
int inode(int x) {return x % n;}
int dnode(int x) {return (x - inode(x)) / n;}
 
int dist[maxm];
 
int dijkstra() {
  priority_queue < pair < int, int > > p;
 
  fill(dist, dist + maxm, oo);
 
  dist[b[0]] = 0;
  p.push({0, b[0]});
 
  while (!p.empty()) {
    int u = p.top().second; p.pop();
 
    for (auto i : g[u]) {
      int v = i.first, w = i.second;
 
      if (dist[v] > dist[u] + w) {
       // cerr << u << ' ' << v << ' ' << w << '\n';
        dist[v] = dist[u] + w;
        p.push({-dist[v], v});
      }
    }
  }
 
  //for (int i = 0; i < 25; ++i)
    //cerr << i << ' ' << dist[i] << '\n';
  return (dist[b[1]] != oo ? dist[b[1]] : -1);
}
 
int main(){
 
  #define TASK "ABC"
	//freopen(TASK".inp", "r", stdin); freopen(TASK".out", "w", stdout);
  ios_base::sync_with_stdio(0);
 
  cin >> n >> m;
 
  for (int i = 0; i < m; ++i)
    cin >> b[i] >> p[i];
 
  for (int j = 1; j <= block; ++j)
    for (int i = j; i < n; ++i)
      g[node(i, j)].push_back({node(i - j, j), 1});
 
  for (int j = 1; j <= block; ++j)
    for (int i = 0; i + j < n; ++i)
      g[node(i, j)].push_back({node(i + j, j), 1});
 
  for (int i = 0; i < n; ++i)
    for (int j = 1; j <= block; ++j)
      g[node(i, j)].push_back({i, 0});
 
  for (int i = 0; i < m; ++i)
    if (p[i] <= block)
      g[b[i]].push_back({node(b[i], p[i]), 0});
 
 
  for (int i = 0; i < m; ++i)
    if (p[i] > block)
      for (int j = b[i] % p[i]; j < n; j += p[i])
        if (i != j)
          g[b[i]].push_back({j, abs(j - b[i]) / p[i]});
 
  //for (int i = 0; i < 10; ++i)
   // for (auto j : g[i])
   //   cerr << i << ' ' << j.first << ' ' << j.second << '\n';
  cout << dijkstra();
 
  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 109944 KB Output is correct
2 Correct 68 ms 110072 KB Output is correct
3 Correct 70 ms 109944 KB Output is correct
4 Correct 69 ms 109944 KB Output is correct
5 Correct 69 ms 109944 KB Output is correct
6 Correct 71 ms 109944 KB Output is correct
7 Correct 71 ms 110024 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 109944 KB Output is correct
2 Correct 71 ms 109944 KB Output is correct
3 Correct 79 ms 109944 KB Output is correct
4 Correct 71 ms 109944 KB Output is correct
5 Correct 71 ms 109944 KB Output is correct
6 Correct 69 ms 109944 KB Output is correct
7 Correct 70 ms 110072 KB Output is correct
8 Correct 82 ms 110200 KB Output is correct
9 Correct 71 ms 110328 KB Output is correct
10 Correct 82 ms 110712 KB Output is correct
11 Correct 72 ms 110712 KB Output is correct
12 Correct 72 ms 110712 KB Output is correct
13 Correct 71 ms 110712 KB Output is correct
14 Correct 73 ms 110712 KB Output is correct
15 Correct 73 ms 110712 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 109944 KB Output is correct
2 Correct 68 ms 109944 KB Output is correct
3 Correct 69 ms 109944 KB Output is correct
4 Correct 81 ms 109944 KB Output is correct
5 Correct 79 ms 109948 KB Output is correct
6 Correct 80 ms 109944 KB Output is correct
7 Correct 70 ms 109944 KB Output is correct
8 Correct 69 ms 110200 KB Output is correct
9 Correct 83 ms 110328 KB Output is correct
10 Correct 75 ms 110712 KB Output is correct
11 Correct 75 ms 110712 KB Output is correct
12 Correct 73 ms 110712 KB Output is correct
13 Correct 72 ms 110712 KB Output is correct
14 Correct 73 ms 110840 KB Output is correct
15 Correct 86 ms 110712 KB Output is correct
16 Correct 74 ms 111456 KB Output is correct
17 Correct 106 ms 117112 KB Output is correct
18 Correct 157 ms 127612 KB Output is correct
19 Correct 162 ms 130404 KB Output is correct
20 Correct 167 ms 130272 KB Output is correct
21 Correct 97 ms 113272 KB Output is correct
22 Correct 158 ms 127992 KB Output is correct
23 Correct 149 ms 126072 KB Output is correct
24 Correct 187 ms 129400 KB Output is correct
25 Correct 163 ms 130296 KB Output is correct
26 Correct 193 ms 130428 KB Output is correct
27 Correct 182 ms 130296 KB Output is correct
28 Correct 170 ms 130296 KB Output is correct
29 Correct 178 ms 130296 KB Output is correct
30 Correct 187 ms 130296 KB Output is correct
31 Correct 170 ms 130296 KB Output is correct
32 Correct 167 ms 130296 KB Output is correct
33 Correct 202 ms 130424 KB Output is correct
34 Correct 207 ms 130296 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 109944 KB Output is correct
2 Correct 74 ms 110072 KB Output is correct
3 Correct 68 ms 109944 KB Output is correct
4 Correct 69 ms 109944 KB Output is correct
5 Correct 69 ms 109944 KB Output is correct
6 Correct 70 ms 109944 KB Output is correct
7 Correct 72 ms 109944 KB Output is correct
8 Correct 80 ms 110200 KB Output is correct
9 Correct 75 ms 110328 KB Output is correct
10 Correct 74 ms 110656 KB Output is correct
11 Correct 73 ms 110712 KB Output is correct
12 Correct 83 ms 110712 KB Output is correct
13 Correct 75 ms 110712 KB Output is correct
14 Correct 72 ms 110712 KB Output is correct
15 Correct 74 ms 110840 KB Output is correct
16 Correct 76 ms 111448 KB Output is correct
17 Correct 102 ms 117112 KB Output is correct
18 Correct 171 ms 127736 KB Output is correct
19 Correct 166 ms 130296 KB Output is correct
20 Correct 172 ms 130296 KB Output is correct
21 Correct 83 ms 113400 KB Output is correct
22 Correct 158 ms 127992 KB Output is correct
23 Correct 146 ms 126072 KB Output is correct
24 Correct 179 ms 129272 KB Output is correct
25 Correct 178 ms 130424 KB Output is correct
26 Correct 182 ms 130296 KB Output is correct
27 Correct 197 ms 130356 KB Output is correct
28 Correct 174 ms 130296 KB Output is correct
29 Correct 171 ms 130296 KB Output is correct
30 Correct 186 ms 130296 KB Output is correct
31 Correct 172 ms 130296 KB Output is correct
32 Correct 165 ms 130424 KB Output is correct
33 Correct 206 ms 130380 KB Output is correct
34 Correct 202 ms 130300 KB Output is correct
35 Correct 171 ms 125176 KB Output is correct
36 Correct 127 ms 120824 KB Output is correct
37 Correct 266 ms 130680 KB Output is correct
38 Correct 253 ms 131532 KB Output is correct
39 Correct 221 ms 131704 KB Output is correct
40 Correct 218 ms 131576 KB Output is correct
41 Correct 225 ms 131716 KB Output is correct
42 Correct 169 ms 130804 KB Output is correct
43 Correct 190 ms 130804 KB Output is correct
44 Correct 189 ms 131060 KB Output is correct
45 Correct 272 ms 131832 KB Output is correct
46 Correct 304 ms 131704 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 109944 KB Output is correct
2 Correct 69 ms 109944 KB Output is correct
3 Correct 69 ms 109944 KB Output is correct
4 Correct 82 ms 109944 KB Output is correct
5 Correct 69 ms 109944 KB Output is correct
6 Correct 70 ms 109944 KB Output is correct
7 Correct 70 ms 109944 KB Output is correct
8 Correct 70 ms 110204 KB Output is correct
9 Correct 70 ms 110328 KB Output is correct
10 Correct 76 ms 110712 KB Output is correct
11 Correct 73 ms 110712 KB Output is correct
12 Correct 72 ms 110712 KB Output is correct
13 Correct 73 ms 110712 KB Output is correct
14 Correct 73 ms 110712 KB Output is correct
15 Correct 74 ms 110712 KB Output is correct
16 Correct 85 ms 111528 KB Output is correct
17 Correct 106 ms 117112 KB Output is correct
18 Correct 151 ms 127648 KB Output is correct
19 Correct 196 ms 130296 KB Output is correct
20 Correct 162 ms 130428 KB Output is correct
21 Correct 94 ms 113272 KB Output is correct
22 Correct 151 ms 127992 KB Output is correct
23 Correct 160 ms 126072 KB Output is correct
24 Correct 161 ms 129272 KB Output is correct
25 Correct 181 ms 130296 KB Output is correct
26 Correct 200 ms 130296 KB Output is correct
27 Correct 211 ms 130296 KB Output is correct
28 Correct 165 ms 130300 KB Output is correct
29 Correct 174 ms 130296 KB Output is correct
30 Correct 188 ms 130296 KB Output is correct
31 Correct 171 ms 130296 KB Output is correct
32 Correct 167 ms 130272 KB Output is correct
33 Correct 236 ms 130296 KB Output is correct
34 Correct 237 ms 130376 KB Output is correct
35 Correct 190 ms 125176 KB Output is correct
36 Correct 129 ms 120824 KB Output is correct
37 Correct 236 ms 130936 KB Output is correct
38 Correct 267 ms 131448 KB Output is correct
39 Correct 247 ms 131576 KB Output is correct
40 Correct 236 ms 131704 KB Output is correct
41 Correct 238 ms 131448 KB Output is correct
42 Correct 187 ms 130804 KB Output is correct
43 Correct 186 ms 130804 KB Output is correct
44 Correct 188 ms 130804 KB Output is correct
45 Correct 296 ms 131808 KB Output is correct
46 Correct 287 ms 131832 KB Output is correct
47 Execution timed out 1114 ms 243704 KB Time limit exceeded
48 Halted 0 ms 0 KB -