제출 #115103

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
115103		tinjyu	늑대인간 (IOI18_werewolf)	C++14	0 / 100	4080 ms	29116 KiB

werewolf

#include "werewolf.h"
#include <iostream>
using namespace std;
long long int t[400005][2],road[200005],map[400005][2],tag[200005][2];
std::vector<int> check_validity(int n, std::vector<int> x, std::vector<int> y,std::vector<int> s, std::vector<int> e,std::vector<int> l, std::vector<int> r) {
	int q = s.size();
	int m = x.size();
	std::vector<int> a(q);
	for(int i=0;i<n;i++)road[i]=-1;
	for(int i=0;i<m;i++)
	{
		map[i*2][0]=x[i];
		map[i*2][1]=road[y[i]];
		road[y[i]]=i*2;
		map[i*2+1][0]=y[i];
		map[i*2+1][1]=road[x[i]];
		road[x[i]]=i*2+1;
	}
	int ans;
	for(int i=0;i<q;i++)
	{
		ans=0;
		for(int j=0;j<n;j++)
		{
			tag[j][0]=0;
			tag[j][1]=0;
		}
		int people=l[i],wolf=r[i],start=s[i],end=e[i];
		tag[start][0]=1;
		t[1][0]=start;
		t[1][1]=0;
		int p=1,pp=1;
		while(p<=pp)
		{
			int now=t[p][0],mode=t[p][1];
			int g=road[now];
			if(now<=wolf && now>=people)
			{
				if(t[p][1]==0 && tag[now][1]==0)
				{
					pp++;
					t[pp][0]=now;
					t[pp][1]=1;
					tag[now][1]=1;
				}
				else if(tag[now][0]==0)
				{
					pp++;
					t[pp][0]=now;
					t[pp][1]=0;
					tag[now][0]=1;
				}
			}
			while(g!=-1)
			{
				if(tag[map[g][0]][mode]==0 && ((mode==0 && map[g][0]>=people) || (mode==1 && map[g][0]<=wolf)))
				{
					pp++;
					t[pp][0]=map[g][0];
					t[pp][1]=mode;
					tag[map[g][0]][mode]=1;
				}
				g=map[g][1];
			}
			p++;
		}
		a[i]=tag[end][1];
	}
	return a;
}

컴파일 시 표준 에러 (stderr) 메시지

werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:19:6: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
  int ans;
      ^~~

• Subtask 1: 0 / 7
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• Subtask 3: 0 / 34
• Subtask 4: 0 / 51