Submission #1076283

#	Time	Username	Problem	Language	Result	Execution time	Memory
1076283		ArthuroWich	Tropical Garden (IOI11_garden)	C++17	49 / 100	5063 ms	1884 KiB

garden

#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>
using namespace std;
int P, k, ans = 0;
vector<vector<int>> adj;
void calc(int i) {
    int p;
    if (adj[i].size() == 1) {
        p = adj[i][0];
    } else {
        p = adj[i][1];
    }
    int l = 0;
    int a = i, b = p;
    while(l < k) {
        if (adj[a].size() == 1) {
            b = a;
            a = adj[a][0];
        } else {
            if (adj[a][0] == b) {
                b = a;
                a = adj[a][1];
            } else {
                b = a;
                a = adj[a][0];
            }
        }
        l++;
    }
    //cout << i << " " << p << " " << a << " " << p << endl;
    if (a == P) {
        ans++;
    }
}
void count_routes(int n, int m, int pp, int R[][2], int Q, int G[]) {
    adj.resize(n+1);
    P = pp;
    for (int i = 0; i < m; i++) {
        if (adj[R[i][0]].size() < 2) {
            adj[R[i][0]].push_back(R[i][1]);
        }
        if (adj[R[i][1]].size() < 2) {
            adj[R[i][1]].push_back(R[i][0]);
        }
    }
    k = G[0];
    for (int i = 0; i < n; i++) {
        calc(i);
    }
    answer(ans);
}

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