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Submission #242983

# Submission time Handle Problem Language Result Execution time Memory
242983 2020-06-30T03:56:55 Z neihcr7j Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 483 ms 262144 KB 
#include<bits/stdc++.h>

#define oo 1000000000
#define maxm 5000000
#define maxn 30005
#define block 100

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 dist[maxm], vis[maxm];

queue < int > L[maxn];

int dijkstra() {
  fill(dist, dist + maxm, oo);
  dist[b[0]] = 0;
  L[0].push(b[0]);

  int M = maxn - 1;

  for (int i = 0; i <= M; ++i)
    while (!L[i].empty()) {
      int u = L[i].front(); L[i].pop();

      if (u == b[1])
        return i;

      if (dist[u] < i || vis[u]) continue;
      vis[u] = 1;

      for (auto x : g[u]) {
        int v = x.first, w = x.second;
        if (dist[v] > dist[u] + w) {
          dist[v] = dist[u] + w;
          if (dist[v] <= M)
            L[dist[v]].push(v);
        }
      }
    }

  return (dist[b[1]] == oo ? -1 : dist[b[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 96 ms 157560 KB Output is correct
2 Correct 95 ms 157560 KB Output is correct
3 Correct 95 ms 157560 KB Output is correct
4 Correct 94 ms 157560 KB Output is correct
5 Correct 107 ms 157560 KB Output is correct
6 Correct 95 ms 157560 KB Output is correct
7 Correct 94 ms 157560 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 157560 KB Output is correct
2 Correct 106 ms 157544 KB Output is correct
3 Correct 96 ms 157560 KB Output is correct
4 Correct 95 ms 157560 KB Output is correct
5 Correct 105 ms 157560 KB Output is correct
6 Correct 104 ms 157548 KB Output is correct
7 Correct 96 ms 157560 KB Output is correct
8 Correct 94 ms 157688 KB Output is correct
9 Correct 96 ms 157816 KB Output is correct
10 Correct 94 ms 157944 KB Output is correct
11 Correct 96 ms 157944 KB Output is correct
12 Correct 95 ms 157944 KB Output is correct
13 Correct 94 ms 157944 KB Output is correct
14 Correct 108 ms 157944 KB Output is correct
15 Correct 109 ms 157944 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 157560 KB Output is correct
2 Correct 106 ms 157688 KB Output is correct
3 Correct 104 ms 157688 KB Output is correct
4 Correct 93 ms 157560 KB Output is correct
5 Correct 93 ms 157560 KB Output is correct
6 Correct 101 ms 157612 KB Output is correct
7 Correct 95 ms 157560 KB Output is correct
8 Correct 94 ms 157688 KB Output is correct
9 Correct 106 ms 157688 KB Output is correct
10 Correct 106 ms 157944 KB Output is correct
11 Correct 96 ms 157944 KB Output is correct
12 Correct 96 ms 157944 KB Output is correct
13 Correct 97 ms 157944 KB Output is correct
14 Correct 93 ms 157948 KB Output is correct
15 Correct 96 ms 157948 KB Output is correct
16 Correct 99 ms 158328 KB Output is correct
17 Correct 110 ms 161268 KB Output is correct
18 Correct 134 ms 165752 KB Output is correct
19 Correct 133 ms 167008 KB Output is correct
20 Correct 132 ms 166904 KB Output is correct
21 Correct 116 ms 159224 KB Output is correct
22 Correct 143 ms 165880 KB Output is correct
23 Correct 142 ms 165368 KB Output is correct
24 Correct 135 ms 166904 KB Output is correct
25 Correct 140 ms 166936 KB Output is correct
26 Correct 138 ms 167032 KB Output is correct
27 Correct 153 ms 167288 KB Output is correct
28 Correct 146 ms 167544 KB Output is correct
29 Correct 140 ms 167160 KB Output is correct
30 Correct 136 ms 167164 KB Output is correct
31 Correct 136 ms 167032 KB Output is correct
32 Correct 139 ms 167076 KB Output is correct
33 Correct 149 ms 167544 KB Output is correct
34 Correct 149 ms 167364 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 157560 KB Output is correct
2 Correct 96 ms 157560 KB Output is correct
3 Correct 95 ms 157560 KB Output is correct
4 Correct 92 ms 157560 KB Output is correct
5 Correct 94 ms 157560 KB Output is correct
6 Correct 97 ms 157560 KB Output is correct
7 Correct 95 ms 157560 KB Output is correct
8 Correct 93 ms 157688 KB Output is correct
9 Correct 95 ms 157688 KB Output is correct
10 Correct 95 ms 157944 KB Output is correct
11 Correct 94 ms 157944 KB Output is correct
12 Correct 94 ms 157944 KB Output is correct
13 Correct 106 ms 157944 KB Output is correct
14 Correct 108 ms 157944 KB Output is correct
15 Correct 107 ms 157944 KB Output is correct
16 Correct 110 ms 158328 KB Output is correct
17 Correct 107 ms 161292 KB Output is correct
18 Correct 130 ms 165752 KB Output is correct
19 Correct 136 ms 166888 KB Output is correct
20 Correct 135 ms 166904 KB Output is correct
21 Correct 113 ms 159224 KB Output is correct
22 Correct 141 ms 166096 KB Output is correct
23 Correct 136 ms 165496 KB Output is correct
24 Correct 137 ms 167032 KB Output is correct
25 Correct 151 ms 166904 KB Output is correct
26 Correct 141 ms 167032 KB Output is correct
27 Correct 159 ms 167288 KB Output is correct
28 Correct 140 ms 167544 KB Output is correct
29 Correct 158 ms 167288 KB Output is correct
30 Correct 136 ms 167032 KB Output is correct
31 Correct 149 ms 167068 KB Output is correct
32 Correct 139 ms 166996 KB Output is correct
33 Correct 152 ms 167488 KB Output is correct
34 Correct 142 ms 167436 KB Output is correct
35 Correct 134 ms 165752 KB Output is correct
36 Correct 117 ms 162808 KB Output is correct
37 Correct 154 ms 168440 KB Output is correct
38 Correct 162 ms 168836 KB Output is correct
39 Correct 147 ms 168312 KB Output is correct
40 Correct 154 ms 168312 KB Output is correct
41 Correct 147 ms 168696 KB Output is correct
42 Correct 156 ms 167604 KB Output is correct
43 Correct 153 ms 167956 KB Output is correct
44 Correct 138 ms 167540 KB Output is correct
45 Correct 170 ms 170872 KB Output is correct
46 Correct 173 ms 170616 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 157560 KB Output is correct
2 Correct 94 ms 157592 KB Output is correct
3 Correct 95 ms 157560 KB Output is correct
4 Correct 95 ms 157560 KB Output is correct
5 Correct 97 ms 157560 KB Output is correct
6 Correct 103 ms 157688 KB Output is correct
7 Correct 94 ms 157560 KB Output is correct
8 Correct 95 ms 157688 KB Output is correct
9 Correct 105 ms 157692 KB Output is correct
10 Correct 95 ms 157944 KB Output is correct
11 Correct 100 ms 158008 KB Output is correct
12 Correct 100 ms 157920 KB Output is correct
13 Correct 98 ms 157944 KB Output is correct
14 Correct 105 ms 157932 KB Output is correct
15 Correct 96 ms 157944 KB Output is correct
16 Correct 100 ms 158328 KB Output is correct
17 Correct 107 ms 161272 KB Output is correct
18 Correct 135 ms 165752 KB Output is correct
19 Correct 132 ms 166904 KB Output is correct
20 Correct 134 ms 166904 KB Output is correct
21 Correct 100 ms 159224 KB Output is correct
22 Correct 137 ms 165880 KB Output is correct
23 Correct 130 ms 165496 KB Output is correct
24 Correct 142 ms 167032 KB Output is correct
25 Correct 133 ms 166904 KB Output is correct
26 Correct 146 ms 167032 KB Output is correct
27 Correct 139 ms 167288 KB Output is correct
28 Correct 145 ms 167544 KB Output is correct
29 Correct 140 ms 167160 KB Output is correct
30 Correct 161 ms 167032 KB Output is correct
31 Correct 138 ms 167032 KB Output is correct
32 Correct 136 ms 167032 KB Output is correct
33 Correct 150 ms 167416 KB Output is correct
34 Correct 140 ms 167416 KB Output is correct
35 Correct 148 ms 165752 KB Output is correct
36 Correct 119 ms 163064 KB Output is correct
37 Correct 150 ms 168444 KB Output is correct
38 Correct 179 ms 168824 KB Output is correct
39 Correct 147 ms 168312 KB Output is correct
40 Correct 144 ms 168440 KB Output is correct
41 Correct 158 ms 168824 KB Output is correct
42 Correct 140 ms 167668 KB Output is correct
43 Correct 143 ms 167796 KB Output is correct
44 Correct 151 ms 167512 KB Output is correct
45 Correct 171 ms 171000 KB Output is correct
46 Correct 159 ms 170616 KB Output is correct
47 Correct 466 ms 221728 KB Output is correct
48 Runtime error 483 ms 262144 KB Execution killed with signal 9 (could be triggered by violating memory limits)
49 Halted 0 ms 0 KB -