oj.uz

Submission #226563

# Submission time Handle Problem Language Result Execution time Memory
226563 2020-04-24T10:19:00 Z a_player Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 711 ms 89576 KB 
#include <bits/stdc++.h>
#define f first
#define s second
#define mp make_pair

using namespace std;
typedef long long ll;

vector<pair<int, ll>> grafo[100002];
pair<ll, ll> dist[100002];
priority_queue<pair<ll, int>> q;
int v[100002];
bitset<100002> vis;
long long travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
  for (int i = 0; i < N; i++) {
    dist[i].f = LLONG_MAX;
    dist[i].s = LLONG_MAX;
    v[i] = 0;
  }
  for (int i = 0; i < M; i++) {
    grafo[R[i][0]].push_back(mp(R[i][1], (ll)L[i]));
    grafo[R[i][1]].push_back(mp(R[i][0], (ll)L[i]));
  }
  for (int i = 0; i < K; i++) {
    int a = P[i];
    v[a] = 2;
    dist[a].f = 0;
    dist[a].s = 0;
    q.push(mp(0, a));
  }
  while (!q.empty()) {
    int co = q.top().s;
    q.pop();
    if (vis[co]) continue;
    vis[co] = 1;
    for (int i = 0; i < grafo[co].size(); i++) {
      int no = grafo[co][i].f;
      int w = grafo[co][i].s;
      if (dist[co].s + w < dist[no].f) {
        dist[no].s = dist[no].f;
        dist[no].f = dist[co].s + w;
        v[no] += 1;
        if (v[no] >= 2) q.push(mp(-dist[no].s, no));
      } else if (dist[co].s + w < dist[no].s) {
        dist[no].s = dist[co].s + w;
        v[no] += 1;
        if (v[no] >= 2) q.push(mp(-dist[no].s, no));
      }
    }
  }
  return dist[0].s;
}

Compilation message

crocodile.cpp: In function 'long long int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:36:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < grafo[co].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 7 ms 2816 KB Output is correct
5 Correct 6 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 7 ms 2816 KB Output is correct
5 Correct 6 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 8 ms 3072 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 7 ms 2944 KB Output is correct
12 Correct 10 ms 3456 KB Output is correct
13 Correct 10 ms 3456 KB Output is correct
14 Correct 7 ms 2816 KB Output is correct
15 Correct 6 ms 2816 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 7 ms 2816 KB Output is correct
5 Correct 6 ms 2816 KB Output is correct
6 Correct 6 ms 2816 KB Output is correct
7 Correct 6 ms 2816 KB Output is correct
8 Correct 6 ms 2816 KB Output is correct
9 Correct 8 ms 3072 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 7 ms 2944 KB Output is correct
12 Correct 10 ms 3456 KB Output is correct
13 Correct 10 ms 3456 KB Output is correct
14 Correct 7 ms 2816 KB Output is correct
15 Correct 6 ms 2816 KB Output is correct
16 Correct 564 ms 83028 KB Output is correct
17 Correct 99 ms 18040 KB Output is correct
18 Correct 135 ms 20600 KB Output is correct
19 Correct 711 ms 89576 KB Output is correct
20 Correct 384 ms 67448 KB Output is correct
21 Correct 56 ms 9976 KB Output is correct
22 Correct 395 ms 64248 KB Output is correct