Submission #1013978

#	Time	Username	Problem	Language	Result	Execution time	Memory
1013978		basa	Tales of seafaring (POI13_mor)	C++14	0 / 100	1236 ms	131072 KiB

mor

#include <bits/stdc++.h>
#include <cmath>

using namespace std;

#define int long long

const int maxn = 5000;
const int SHORT_MAX = 32767;

int n, m, k;
short vis[maxn];
vector<int>adj[maxn];
short dist[maxn][maxn][2];

signed main()
{
  cin.tie(0) -> sync_with_stdio(0);
  cin >> n >> m >> k;

  for(int i = 0; i < m; i++){
    int u, v;
    cin >> u >> v;

    adj[u].push_back(v);
    adj[v].push_back(u);
  }

  for(int i = 1; i <= n; i++){
    for(int j = 1; j <= n; j++){
      dist[i][j][0] = SHORT_MAX;
      dist[j][i][0] = SHORT_MAX;
      dist[i][j][1] = SHORT_MAX;
      dist[j][i][1] = SHORT_MAX;
    }
  }

  while(k--){
    int s, t, d;
    cin >> s >> t >> d;

    if(dist[s][t][0] != SHORT_MAX){
      cout << dist[s][t][0] << '\n';
      continue;
    }
    if(dist[s][t][1] != SHORT_MAX){
      cout << dist[s][t][1] << '\n';
      continue;
    }
    if(dist[t][s][0] != SHORT_MAX){
      cout << dist[t][s][0] << '\n';
      continue;
    }
    if(dist[t][s][1] != SHORT_MAX){
      cout << dist[t][s][1] << '\n';
      continue;
    }

    dist[s][s][0] = 0;
    queue<int>q;
    q.push(s);
    while(q.size()){
      int v = q.front();
      q.pop();

      for(int i : adj[v]){
        if(dist[s][v][0] + 1 < dist[s][i][1]){
          dist[s][i][1] = dist[s][v][0] + 1;
          q.push(i);
        }
        if(dist[s][v][1] + 1 < dist[s][i][0]){
          dist[s][i][0] = dist[s][v][1] + 1;
          q.push(i);
        }
      }
    }

    int e = dist[s][t][0];
    int o = dist[s][t][1];

    if(d % 2 == 0 && e <= d) cout << "TAK\n";
    else if(d % 2 == 1 && o <= d) cout << "TAK\n";
    else cout << "NIE\n";
  }
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10