oj.uz

답안 #1104558

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1104558 2024-10-24T03:32:33 Z vjudge1 열대 식물원 (Tropical Garden) (IOI11_garden) C++17
0 / 100
 1 ms 336 KB 
#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;

const int MxN = 1005;
int n, m, p, q, g, r[MxN][2];
ll ans;
vector<pii> v[MxN];

void dfs (int cur, int dist, int w) {
  if (dist == g && cur == p) return void(ans++);
  if (dist >= g) return;
  bool ok = 0;
  if (v[cur].size() >= 1 && v[cur][0].first != w) {
    auto [x, y] = v[cur][0];
    dfs(y, dist + 1, x); ok = 1;
  }
  if (!ok && v[cur].size() >= 2 && v[cur][1].first != w) {
    auto [x, y] = v[cur][1];
    dfs(y, dist + 1, x); ok = 1;
  }
  if (!ok) {
    auto [x, y] = v[cur][0];
    dfs(y, dist + 1, x);
  }
}

void count_routes(int N, int M, int P, int R[][2], int Q, int G[]){
  n = N; m = M; p = P; q = Q; g = G[0];
  for (int i = 0; i < m; i++) {
    r[i][0] = R[i][0]; r[i][1] = R[i][1];
    v[r[i][0]].emplace_back(i, r[i][1]);
    v[r[i][1]].emplace_back(i, r[i][0]);
  }
  for (int i = 0; i < n; i++) sort(v[i].begin(), v[i].end());
  for (int i = 0; i < n; i++) dfs(i, 0, -1);
  answer(ans);
}

Subtask #1
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Incorrect 1 ms 336 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Incorrect 1 ms 336 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Incorrect 1 ms 336 KB Output isn't correct
4 Halted 0 ms 0 KB -