제출 #425057

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
425057		alishahali1382	Split the Attractions (IOI19_split)	C++14	11 / 100	112 ms	16324 KiB

split

#include "split.h"
#include<bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define debug(x) {cerr<<#x<<"="<<x<<"\n";}
#define debug2(x, y) {cerr<<"{"<<#x<<", "<<#y<<"}={"<<x<<", "<<y<<"}\n";}
#define debugp(p) {cerr<<#p<<"={"<<p.first<<", "<<p.second<<"}\n";}
#define debugv(abcd) {cerr<<#abcd<<": ";for (auto dcba:abcd) cerr<<dcba<<", ";cerr<<"\n";}
#define pb push_back
#define SZ(x) ((int)x.size())
#define all(x) x.begin(), x.end()

const int inf=1000001000; // 1e9
const ll INF=10000000010000000; // 1e16
const int mod=1000000007;
const int MAXN=100010;

vector<pair<int, char>> perm;
int n, m, k, a, b, c, u, v, t, x, y;
int mark[MAXN];
vector<int> G[MAXN];
vector<int> out;
vector<int> topol;

void dfs1(int node, int c){
	topol.pb(node);
	mark[node]=c;
	for (int v:G[node]) if (!mark[v]) dfs1(v, c);
}

vector<int> find_split(int _n, int _a, int _b, int _c, vector<int> _p, vector<int> _q){
	n=_n;
	out.resize(n, 0);
	a=_a;
	b=_b;
	c=_c;
	for (int i=0; i<SZ(_p); i++){
		int u=_p[i], v=_q[i];
		G[u].pb(v);
		G[v].pb(u);
	}
	perm.pb({a, 'a'});
	perm.pb({b, 'b'});
	perm.pb({c, 'c'});
	sort(all(perm));
	a=perm[0].first;
	b=perm[1].first;
	c=perm[2].first;

	dfs1(0, 1);
	memset(mark, 0, sizeof(mark));
	int v=topol.back();
	topol.clear();
	debug(v)
	out[v]=1;
	mark[v]=1;
	dfs1((v==0), 2);
	for (int i=0; i<b; i++) out[topol[i]]=2; 
	
	for (int i=0; i<n; i++){
		if (!out[i]) out[i]=3;
		out[i]=perm[out[i]-1].second-'a'+1;
	}
	return out;
}

• Subtask 1: 0 / 7
• Subtask 2: 11 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36