답안 #59235 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
59235	2018-07-21T09:44:06 Z	TadijaSebez	낙하산 고리들 (IOI12_rings)	C++11	100 / 100	3900 ms	125872 KB

rings

#include <stdio.h>
#include <vector>
#include <algorithm>
using namespace std;
#define mp make_pair
#define pb push_back
const int N=1000050;
int n;
struct DSU
{
	int p[N],c[N],deg[N];
	int cyc,my,sz;
	bool ok;
	DSU(){}
	void init(int x)
	{
		my=x;cyc=sz=0;ok=1;
		for(int i=0;i<n;i++) p[i]=i,c[i]=1,deg[i]=0;
	}
	int Find(int x){ return x==p[x]?x:p[x]=Find(p[x]);}
	void Union(int x, int y)
	{
		if(x==my || y==my) return;
		deg[x]++;deg[y]++;
		if(deg[x]>2 || deg[y]>2) ok=0;
		x=Find(x);y=Find(y);
		if(x==y){ cyc++,sz=c[x],ok=0;return;}
		p[x]=y;
		c[y]+=c[x];
	}
} Base,Try[4];
vector<int> E[N];
int esz;
pair<int,int> edges[N];
int deg[N],sz;
bool mod;
void Init(int m){ n=m;Base.init(-1);}
void Push()
{
	for(int i=0;i<esz;i++)
	{
		for(int j=0;j<sz;j++)
		{
			Try[j].Union(edges[i].first,edges[i].second);
		}
	}
}
void Link(int a, int b)
{
	deg[a]++;
	deg[b]++;
	Base.Union(a,b);
	E[a].pb(b);
	E[b].pb(a);
	edges[esz++]=mp(a,b);
	if(mod)
	{
		for(int i=0;i<sz;i++) Try[i].Union(a,b);
		return;
	}
	if(deg[a]>2)
	{
		sz=E[a].size()+1;
		Try[0].init(a);
		for(int i=0;i<E[a].size();i++) Try[i+1].init(E[a][i]);
		Push();
		mod=1;
		return;
	}
	if(deg[b]>2)
	{
		sz=E[b].size()+1;
		Try[0].init(b);
		for(int i=0;i<E[b].size();i++) Try[i+1].init(E[b][i]);
		Push();
		mod=1;
		return;
	}
}
int CountCritical()
{
	if(mod)
	{
		int ans=0;
		for(int i=0;i<sz;i++) if(Try[i].ok) ans++;
		return ans;
	}
	if(Base.cyc>1) return 0;
	if(Base.cyc==1) return Base.sz;
	return n;
}

Compilation message

rings.cpp: In function 'void Link(int, int)':
rings.cpp:65:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<E[a].size();i++) Try[i+1].init(E[a][i]);
               ~^~~~~~~~~~~~
rings.cpp:74:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<E[b].size();i++) Try[i+1].init(E[b][i]);
               ~^~~~~~~~~~~~

Subtask #1
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	23800 KB	Output is correct
2	Correct	23 ms	24456 KB	Output is correct
3	Correct	24 ms	24600 KB	Output is correct
4	Correct	22 ms	24600 KB	Output is correct
5	Correct	23 ms	24600 KB	Output is correct
6	Correct	25 ms	24600 KB	Output is correct
7	Correct	23 ms	24600 KB	Output is correct
8	Correct	23 ms	24600 KB	Output is correct
9	Correct	25 ms	24708 KB	Output is correct
10	Correct	26 ms	24708 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	489 ms	52616 KB	Output is correct
2	Correct	2887 ms	105600 KB	Output is correct
3	Correct	3448 ms	121468 KB	Output is correct
4	Correct	1382 ms	121468 KB	Output is correct
5	Correct	1384 ms	121468 KB	Output is correct
6	Correct	1333 ms	121468 KB	Output is correct
7	Correct	3364 ms	121468 KB	Output is correct
8	Correct	3655 ms	121468 KB	Output is correct
9	Correct	3900 ms	125872 KB	Output is correct
10	Correct	969 ms	125872 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	23800 KB	Output is correct
2	Correct	23 ms	24456 KB	Output is correct
3	Correct	24 ms	24600 KB	Output is correct
4	Correct	22 ms	24600 KB	Output is correct
5	Correct	23 ms	24600 KB	Output is correct
6	Correct	25 ms	24600 KB	Output is correct
7	Correct	23 ms	24600 KB	Output is correct
8	Correct	23 ms	24600 KB	Output is correct
9	Correct	25 ms	24708 KB	Output is correct
10	Correct	26 ms	24708 KB	Output is correct
11	Correct	25 ms	125872 KB	Output is correct
12	Correct	30 ms	125872 KB	Output is correct
13	Correct	29 ms	125872 KB	Output is correct
14	Correct	28 ms	125872 KB	Output is correct
15	Correct	27 ms	125872 KB	Output is correct
16	Correct	28 ms	125872 KB	Output is correct
17	Correct	28 ms	125872 KB	Output is correct
18	Correct	31 ms	125872 KB	Output is correct
19	Correct	27 ms	125872 KB	Output is correct
20	Correct	29 ms	125872 KB	Output is correct

Subtask #4
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	23800 KB	Output is correct
2	Correct	23 ms	24456 KB	Output is correct
3	Correct	24 ms	24600 KB	Output is correct
4	Correct	22 ms	24600 KB	Output is correct
5	Correct	23 ms	24600 KB	Output is correct
6	Correct	25 ms	24600 KB	Output is correct
7	Correct	23 ms	24600 KB	Output is correct
8	Correct	23 ms	24600 KB	Output is correct
9	Correct	25 ms	24708 KB	Output is correct
10	Correct	26 ms	24708 KB	Output is correct
11	Correct	25 ms	125872 KB	Output is correct
12	Correct	30 ms	125872 KB	Output is correct
13	Correct	29 ms	125872 KB	Output is correct
14	Correct	28 ms	125872 KB	Output is correct
15	Correct	27 ms	125872 KB	Output is correct
16	Correct	28 ms	125872 KB	Output is correct
17	Correct	28 ms	125872 KB	Output is correct
18	Correct	31 ms	125872 KB	Output is correct
19	Correct	27 ms	125872 KB	Output is correct
20	Correct	29 ms	125872 KB	Output is correct
21	Correct	43 ms	125872 KB	Output is correct
22	Correct	89 ms	125872 KB	Output is correct
23	Correct	68 ms	125872 KB	Output is correct
24	Correct	109 ms	125872 KB	Output is correct
25	Correct	43 ms	125872 KB	Output is correct
26	Correct	85 ms	125872 KB	Output is correct
27	Correct	75 ms	125872 KB	Output is correct
28	Correct	104 ms	125872 KB	Output is correct
29	Correct	75 ms	125872 KB	Output is correct
30	Correct	91 ms	125872 KB	Output is correct

Subtask #5
31.0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	23800 KB	Output is correct
2	Correct	23 ms	24456 KB	Output is correct
3	Correct	24 ms	24600 KB	Output is correct
4	Correct	22 ms	24600 KB	Output is correct
5	Correct	23 ms	24600 KB	Output is correct
6	Correct	25 ms	24600 KB	Output is correct
7	Correct	23 ms	24600 KB	Output is correct
8	Correct	23 ms	24600 KB	Output is correct
9	Correct	25 ms	24708 KB	Output is correct
10	Correct	26 ms	24708 KB	Output is correct
11	Correct	489 ms	52616 KB	Output is correct
12	Correct	2887 ms	105600 KB	Output is correct
13	Correct	3448 ms	121468 KB	Output is correct
14	Correct	1382 ms	121468 KB	Output is correct
15	Correct	1384 ms	121468 KB	Output is correct
16	Correct	1333 ms	121468 KB	Output is correct
17	Correct	3364 ms	121468 KB	Output is correct
18	Correct	3655 ms	121468 KB	Output is correct
19	Correct	3900 ms	125872 KB	Output is correct
20	Correct	969 ms	125872 KB	Output is correct
21	Correct	25 ms	125872 KB	Output is correct
22	Correct	30 ms	125872 KB	Output is correct
23	Correct	29 ms	125872 KB	Output is correct
24	Correct	28 ms	125872 KB	Output is correct
25	Correct	27 ms	125872 KB	Output is correct
26	Correct	28 ms	125872 KB	Output is correct
27	Correct	28 ms	125872 KB	Output is correct
28	Correct	31 ms	125872 KB	Output is correct
29	Correct	27 ms	125872 KB	Output is correct
30	Correct	29 ms	125872 KB	Output is correct
31	Correct	43 ms	125872 KB	Output is correct
32	Correct	89 ms	125872 KB	Output is correct
33	Correct	68 ms	125872 KB	Output is correct
34	Correct	109 ms	125872 KB	Output is correct
35	Correct	43 ms	125872 KB	Output is correct
36	Correct	85 ms	125872 KB	Output is correct
37	Correct	75 ms	125872 KB	Output is correct
38	Correct	104 ms	125872 KB	Output is correct
39	Correct	75 ms	125872 KB	Output is correct
40	Correct	91 ms	125872 KB	Output is correct
41	Correct	274 ms	125872 KB	Output is correct
42	Correct	1215 ms	125872 KB	Output is correct
43	Correct	440 ms	125872 KB	Output is correct
44	Correct	1409 ms	125872 KB	Output is correct
45	Correct	2105 ms	125872 KB	Output is correct
46	Correct	890 ms	125872 KB	Output is correct
47	Correct	1157 ms	125872 KB	Output is correct
48	Correct	1075 ms	125872 KB	Output is correct
49	Correct	847 ms	125872 KB	Output is correct
50	Correct	936 ms	125872 KB	Output is correct
51	Correct	603 ms	125872 KB	Output is correct
52	Correct	1238 ms	125872 KB	Output is correct
53	Correct	1158 ms	125872 KB	Output is correct
54	Correct	3344 ms	125872 KB	Output is correct
55	Correct	3305 ms	125872 KB	Output is correct

답안 #59235

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 17.0 / 17.0

Subtask #3 18.0 / 18.0

Subtask #4 14.0 / 14.0

Subtask #5 31.0 / 31.0

Subtask #1
20.0 / 20.0

Subtask #2
17.0 / 17.0

Subtask #3
18.0 / 18.0

Subtask #4
14.0 / 14.0

Subtask #5
31.0 / 31.0