Submission #741299

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
741299	2023-05-14 01:35:09	Patrick	Tropical Garden (IOI11_garden)	C++17	69 / 100	5027 ms	78364 KiB

garden

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#include "garden.h"
#include <iostream>
#include <vector>
#include "gardenlib.h"
using namespace std;
void count_routes(int N, int M, int P, int R[][2], int Q, int G[]) {
    vector<int> n1(N, -1), n2(N, -1);
    for (int i = M - 1; i >= 0; i--) {
        int u = R[i][0], v = R[i][1];
        n2[u] = n1[u];
        n1[u] = v;
        n2[v] = n1[v];
        n1[v] = u;
    }
    for (int i = 0; i < N; i++) {
        if (n2[i] == -1) n2[i] = n1[i];
    }
    vector<vector<pair<int, bool>>> next1(31, vector<pair<int, bool>>(N)),
        next2(31, vector<pair<int, bool>>(N));
    for (int i = 0; i < N; i++) {
        next1[0][i] = {n1[i], n1[n1[i]] != i};
        next2[0][i] = {n2[i], n1[n2[i]] != i};
    }
    for (int l = 1; l <= 30; l++) {
        for (int i = 0; i < N; i++) {
 
 
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• Subtask 1: 49 / 49
• Subtask 2: 20 / 20
• Subtask 3: 0 / 31