Submission #404883

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
404883	2021-05-15 08:37:15	Joshc	Tropical Garden (IOI11_garden)	C++11	100 / 100	192 ms	61980 KiB

garden

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#include "garden.h"
#include "gardenlib.h"
#include <algorithm>
#include <vector>
using namespace std;
const int INF = 2000000000;
vector<int> edges[150001], edges2[300001], num[300001], num2[300001]; 
int dist[300001], dist2[300001], m[300001], m2[300001], x = 0, y = 0;
void dfs(int v, int p, int cur, int dist[], int& len) {
    dist[v] = cur;
    for (int i : edges2[v]) {
        if (i == p) continue;
        if (dist[i] != INF) len = cur+1;
        else dfs(i, v, cur+1, dist, len);
    }
}
void count_routes(int n, int z, int p, int r[][2], int q, int g[]) {
    for (int i=0; i<z; i++) {
        edges[r[i][0]].push_back(r[i][1]);
        edges[r[i][1]].push_back(r[i][0]);
    }
    for (int i=0; i<n; i++) {
        edges2[edges[i][0]*2 + (i == edges[edges[i][0]][0])].push_back(i*2);
        if (edges[i].size() == 1) edges2[edges[i][0]*2 + (i == edges[edges[i][0]][0])].push_back(i*2+1);
        else edges2[edges[i][1]*2 + (i == edges[edges[i][1]][0])].push_back(i*2+1);
    }
 
 
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• Subtask 1: 49 / 49
• Subtask 2: 20 / 20
• Subtask 3: 31 / 31