oj.uz

Submission #826622

# Submission time Handle Problem Language Result Execution time Memory
826622 2023-08-15T18:09:21 Z cig32 Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 159 ms 262144 KB 
#include "bits/stdc++.h"
using namespace std;
#define double long double
const int MAXN = 9500000;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
  if(p==0) return 1 % MOD;
  int r = bm(b, p >> 1);
  if(p&1) return (((r*r) % MOD) * b) % MOD;
  return (r*r) % MOD;
}
int inv(int b) { 
  return bm(b, MOD-2);
}
int fastlog(int x) {
  return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
vector<pair<int, int> >adj[MAXN];
int n, m, s, nxt;
void construct(int b, int p) { 
  for(int j=b%p; j<n; j+=p) {
    if(j+p < n) adj[nxt + j/p].push_back({nxt + j/p + 1, 1});
    if(j-p >= 0) adj[nxt + j/p].push_back({nxt + j/p - 1, 1});
    adj[nxt + j/p].push_back({j, 0});
  }
  adj[b].push_back({nxt + b/p, 0});
  for(int j=b%p; j<n; j+=p) {
    nxt++;
  }
}
void solve(int tc) {
  cin >> n >> m;
  s = sqrt(n);
  nxt = n;
  int st, en;
  int bruh[s+1][s];
  for(int i=1; i<=s; i++) {
    for(int j=0; j<i; j++) {
      bruh[i][j] = -1;
    }
  }
  for(int i=0; i<m; i++) {
    int b, p;
    cin >> b >> p;
    if(i == 0) st = b;
    if(i == 1) en = b;
    if(p <= s && bruh[p][b%p] == -1) {
      bruh[p][b%p] = nxt;
      construct(b, p);
    }
    else if(p > s) {
      for(int j=b%p; j<n; j+=p) {
        if(b != j) adj[b].push_back({j, abs(b-j) / p});
      }
    }
    else {
      adj[b].push_back({bruh[p][b%p] + b/p, 0});
    }
  }
  int k = nxt;
  int dist[k];
  bool vis[k];
  for(int i=0; i<k; i++) dist[i] = 1e9, vis[i] = 0;
  dist[st] = 0;
  priority_queue<pair<int,int>, vector<pair<int,int> >,greater<pair<int,int> > >pq;
  pq.push({0, st});
  while(pq.size()) {
    pair<int, int> t = pq.top();
    pq.pop();
    if(!vis[t.second]) {
      if(t.second == en) break;
      vis[t.second] = 1;
      for(pair<int, int> x: adj[t.second]) {
        if(!vis[x.first] && dist[x.first] > dist[t.second] + x.second) {
          dist[x.first] = dist[t.second] + x.second;
          pq.push({dist[x.first], x.first});
        }
      }
    }
  }
  cout<<(dist[en]==1e9?-1:dist[en])<<"\n";
}
int32_t main() {
  ios::sync_with_stdio(0); cin.tie(0);
  int t = 1; //cin >> t;
  for(int i=1; i<=t; i++) solve(i);
}
// 勿忘初衷

Compilation message

skyscraper.cpp: In function 'void solve(int)':
skyscraper.cpp:76:7: warning: 'en' may be used uninitialized in this function [-Wmaybe-uninitialized]
   76 |       if(t.second == en) break;
      |       ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 101 ms 223340 KB Output is correct
2 Correct 100 ms 223348 KB Output is correct
3 Correct 100 ms 223304 KB Output is correct
4 Correct 103 ms 223348 KB Output is correct
5 Correct 99 ms 223380 KB Output is correct
6 Correct 100 ms 223368 KB Output is correct
7 Correct 114 ms 223308 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 101 ms 223392 KB Output is correct
2 Correct 104 ms 223392 KB Output is correct
3 Correct 104 ms 223424 KB Output is correct
4 Correct 101 ms 223320 KB Output is correct
5 Correct 101 ms 223296 KB Output is correct
6 Correct 100 ms 223292 KB Output is correct
7 Correct 101 ms 223304 KB Output is correct
8 Correct 100 ms 223312 KB Output is correct
9 Correct 103 ms 223308 KB Output is correct
10 Correct 109 ms 223428 KB Output is correct
11 Correct 101 ms 223448 KB Output is correct
12 Correct 101 ms 223460 KB Output is correct
13 Correct 106 ms 223420 KB Output is correct
14 Correct 103 ms 223468 KB Output is correct
15 Correct 105 ms 223408 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 101 ms 223360 KB Output is correct
2 Correct 106 ms 223392 KB Output is correct
3 Correct 103 ms 223340 KB Output is correct
4 Correct 101 ms 223308 KB Output is correct
5 Correct 100 ms 223392 KB Output is correct
6 Correct 114 ms 223308 KB Output is correct
7 Correct 102 ms 223396 KB Output is correct
8 Correct 101 ms 223344 KB Output is correct
9 Correct 102 ms 223380 KB Output is correct
10 Correct 103 ms 223352 KB Output is correct
11 Correct 107 ms 223436 KB Output is correct
12 Correct 103 ms 223436 KB Output is correct
13 Correct 104 ms 223440 KB Output is correct
14 Correct 102 ms 223400 KB Output is correct
15 Correct 103 ms 223500 KB Output is correct
16 Correct 107 ms 223380 KB Output is correct
17 Correct 104 ms 223808 KB Output is correct
18 Correct 103 ms 223572 KB Output is correct
19 Correct 115 ms 223572 KB Output is correct
20 Correct 116 ms 223536 KB Output is correct
21 Correct 103 ms 223420 KB Output is correct
22 Correct 106 ms 223592 KB Output is correct
23 Correct 103 ms 223564 KB Output is correct
24 Correct 105 ms 223692 KB Output is correct
25 Correct 106 ms 223556 KB Output is correct
26 Correct 103 ms 223736 KB Output is correct
27 Correct 120 ms 223692 KB Output is correct
28 Correct 104 ms 224104 KB Output is correct
29 Correct 113 ms 226508 KB Output is correct
30 Correct 106 ms 224252 KB Output is correct
31 Correct 110 ms 224964 KB Output is correct
32 Correct 113 ms 224076 KB Output is correct
33 Correct 117 ms 228044 KB Output is correct
34 Correct 115 ms 228100 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 223304 KB Output is correct
2 Correct 108 ms 223460 KB Output is correct
3 Correct 103 ms 223344 KB Output is correct
4 Correct 103 ms 223392 KB Output is correct
5 Correct 103 ms 223352 KB Output is correct
6 Correct 102 ms 223328 KB Output is correct
7 Correct 104 ms 223412 KB Output is correct
8 Correct 102 ms 223292 KB Output is correct
9 Correct 102 ms 223400 KB Output is correct
10 Correct 105 ms 223432 KB Output is correct
11 Correct 109 ms 223440 KB Output is correct
12 Correct 104 ms 223392 KB Output is correct
13 Correct 103 ms 223324 KB Output is correct
14 Correct 103 ms 223436 KB Output is correct
15 Correct 115 ms 223380 KB Output is correct
16 Correct 106 ms 223436 KB Output is correct
17 Correct 105 ms 223748 KB Output is correct
18 Correct 104 ms 223588 KB Output is correct
19 Correct 103 ms 223480 KB Output is correct
20 Correct 105 ms 223484 KB Output is correct
21 Correct 104 ms 223440 KB Output is correct
22 Correct 104 ms 223576 KB Output is correct
23 Correct 103 ms 223624 KB Output is correct
24 Correct 105 ms 223696 KB Output is correct
25 Correct 104 ms 223556 KB Output is correct
26 Correct 105 ms 223732 KB Output is correct
27 Correct 104 ms 223740 KB Output is correct
28 Correct 105 ms 224204 KB Output is correct
29 Correct 113 ms 226516 KB Output is correct
30 Correct 106 ms 224304 KB Output is correct
31 Correct 113 ms 225028 KB Output is correct
32 Correct 105 ms 224092 KB Output is correct
33 Correct 115 ms 228248 KB Output is correct
34 Correct 114 ms 228028 KB Output is correct
35 Correct 111 ms 225720 KB Output is correct
36 Correct 104 ms 223816 KB Output is correct
37 Correct 113 ms 227692 KB Output is correct
38 Correct 114 ms 227200 KB Output is correct
39 Correct 112 ms 227136 KB Output is correct
40 Correct 113 ms 227168 KB Output is correct
41 Correct 123 ms 227288 KB Output is correct
42 Correct 106 ms 224320 KB Output is correct
43 Correct 107 ms 224196 KB Output is correct
44 Correct 106 ms 224068 KB Output is correct
45 Correct 127 ms 231432 KB Output is correct
46 Correct 120 ms 231416 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 223324 KB Output is correct
2 Correct 103 ms 223392 KB Output is correct
3 Correct 105 ms 223396 KB Output is correct
4 Correct 105 ms 223300 KB Output is correct
5 Correct 104 ms 223340 KB Output is correct
6 Correct 102 ms 223308 KB Output is correct
7 Correct 102 ms 223284 KB Output is correct
8 Correct 103 ms 223320 KB Output is correct
9 Correct 108 ms 223528 KB Output is correct
10 Correct 104 ms 223384 KB Output is correct
11 Correct 104 ms 223404 KB Output is correct
12 Correct 102 ms 223324 KB Output is correct
13 Correct 103 ms 223444 KB Output is correct
14 Correct 105 ms 223584 KB Output is correct
15 Correct 102 ms 223492 KB Output is correct
16 Correct 107 ms 223420 KB Output is correct
17 Correct 104 ms 223844 KB Output is correct
18 Correct 103 ms 223616 KB Output is correct
19 Correct 106 ms 223672 KB Output is correct
20 Correct 103 ms 223592 KB Output is correct
21 Correct 102 ms 223440 KB Output is correct
22 Correct 104 ms 223564 KB Output is correct
23 Correct 104 ms 223500 KB Output is correct
24 Correct 103 ms 223820 KB Output is correct
25 Correct 104 ms 223656 KB Output is correct
26 Correct 104 ms 223800 KB Output is correct
27 Correct 105 ms 223744 KB Output is correct
28 Correct 104 ms 224148 KB Output is correct
29 Correct 116 ms 226700 KB Output is correct
30 Correct 106 ms 224312 KB Output is correct
31 Correct 109 ms 224972 KB Output is correct
32 Correct 111 ms 224060 KB Output is correct
33 Correct 118 ms 228116 KB Output is correct
34 Correct 115 ms 228112 KB Output is correct
35 Correct 110 ms 225780 KB Output is correct
36 Correct 106 ms 223844 KB Output is correct
37 Correct 114 ms 227644 KB Output is correct
38 Correct 114 ms 227296 KB Output is correct
39 Correct 111 ms 227136 KB Output is correct
40 Correct 112 ms 227144 KB Output is correct
41 Correct 112 ms 227204 KB Output is correct
42 Correct 107 ms 224324 KB Output is correct
43 Correct 105 ms 224184 KB Output is correct
44 Correct 105 ms 224024 KB Output is correct
45 Correct 125 ms 231372 KB Output is correct
46 Correct 120 ms 231404 KB Output is correct
47 Correct 146 ms 246724 KB Output is correct
48 Correct 124 ms 231244 KB Output is correct
49 Correct 111 ms 227404 KB Output is correct
50 Correct 112 ms 228096 KB Output is correct
51 Correct 128 ms 234316 KB Output is correct
52 Correct 131 ms 235696 KB Output is correct
53 Correct 113 ms 226968 KB Output is correct
54 Correct 106 ms 225176 KB Output is correct
55 Correct 108 ms 226428 KB Output is correct
56 Correct 111 ms 226252 KB Output is correct
57 Correct 142 ms 246156 KB Output is correct
58 Correct 112 ms 227584 KB Output is correct
59 Correct 115 ms 229152 KB Output is correct
60 Correct 119 ms 230192 KB Output is correct
61 Correct 117 ms 229000 KB Output is correct
62 Correct 144 ms 240484 KB Output is correct
63 Correct 151 ms 250168 KB Output is correct
64 Correct 159 ms 257816 KB Output is correct
65 Runtime error 156 ms 262144 KB Execution killed with signal 9
66 Halted 0 ms 0 KB -