제출 #1135280

#제출 시각아이디문제언어결과실행 시간메모리
1135280vibeduckSplit the Attractions (IOI19_split)C++20
0 / 100
589 ms1114112 KiB
#include "split.h"
#include <bits/stdc++.h>
using namespace std;

typedef long double ld;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<vector<bool>> vvb;
typedef vector<vector<ll>> vvll;
typedef vector<string> vs;
typedef vector<vector<string>> vvs;
typedef vector<char> vc;
typedef vector<vector<char>> vvc;
typedef map<int, int> mii;
typedef unordered_map<int, int> umii;

const int mxn = 2e5 + 5;
vi adj[mxn]; vi ans; int cur = 0;
int a1, b1, c1;

void dfs(int node, int prev, int i) {
    ans[node] = i;
    cur++;
    //cout << node << " " << i << " " << cur << '\n';
    if (i == 1) {if (cur == a1) {i++; cur = 0;}}
    else if (i == 2) {if (cur == b1) {i++; cur = 0;}}
    for (auto neighbour : adj[node]) {
        if (neighbour == prev) continue;
        dfs(neighbour, node, i);
    }
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	a1 = a; b1 = b; c1 = c;
	int m = p.size();
	ans.resize(n);
    for (int i = 0; i < m; i++) {
		adj[p[i]].push_back(q[i]);
		adj[q[i]].push_back(p[i]);
	}
    dfs(0, -1, 1);
    return ans;
}
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