Submission #1112749

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112749		PagodePaiva	Tropical Garden (IOI11_garden)	C++17	49 / 100	7 ms	4944 KiB

garden

#include<bits/stdc++.h>
#include "garden.h"
#include "gardenlib.h"

using namespace std;

const int N = 1010;
vector <array <int, 2>> g[N];

void count_routes(int n, int m, int P, int r[][2], int Q, int G[]){
  for(int i = 0;i < m;i++){
    g[r[i][0]].push_back({i, r[i][1]});
    g[r[i][1]].push_back({i, r[i][0]});
  }
  for(int i = 0;i < n;i++){
    sort(g[i].begin(), g[i].end());
  }
  for(int i =0;i < Q;i++){
    int res = 0;
    for(int j = 0;j < n;j++){
      int v = j, peso = -1;
      int k = G[i];
      while(k > 0){
        if(g[v].empty())k--;
        else{
          if(g[v][0][0] != peso){
            peso = g[v][0][0];
            v = g[v][0][1];
          }
          else{
            if(g[v].size() == 1) v = g[v][0][1];
            else{
              peso = g[v][1][0];
              v = g[v][1][1];
            }
          }
          k--;
        }
      }
      if(v == P) res++;
    }
    answer(res);
  }
}

• Subtask 1: 49 / 49
• Subtask 2: 0 / 20
• Subtask 3: 0 / 31