QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#833533#9241. Sphinxdongyc6660 0ms3904kbC++174.6kb2024-12-26 21:05:522024-12-26 21:05:53

Judging History

你现在查看的是最新测评结果

  • [2024-12-26 21:05:53]
  • 评测
  • 测评结果:0
  • 用时:0ms
  • 内存:3904kb
  • [2024-12-26 21:05:52]
  • 提交

answer

#include "sphinx.h"
#include<bits/stdc++.h>
using namespace std;
const int NR=300;
int n,m,c[NR],fa[NR],tot,cnt,opt[NR],ans[NR],nc[NR],color[NR];
vector<int>g[NR],buc[NR],G[NR],v1,v2;
#define pb emplace_back

void init(){
	for(int i=1;i<=n;i++)fa[i]=i;
	cnt=n;
}
int get(int x){
	if(fa[x]==x)return x;
	return fa[x]=get(fa[x]);
}
void merge(int x,int y){
	x=get(x);y=get(y);
	if(x==y)return;
	fa[x]=y;cnt--;
}

void dfs(int id,int k){
	if(color[id])return;
	if(k==1)v1.pb(id);
	else v2.pb(id);
	color[id]=k;
	for(int x:G[id])dfs(x,k^3);
}

bool check(vector<int>idx,vector<int>lcy,int color){
	for(int i=1;i<=n;i++)opt[i]=1;
	for(int x:idx)opt[x]=0;
	init();
	for(int i=1;i<=n;i++)
		for(int x:g[i])
			if(opt[c[x]]==opt[c[i]]){
				if(opt[c[x]])merge(i,x);
				else if(c[i]==c[x])merge(i,x);
			}
	vector<int>arr;
	for(int i=1;i<=n;i++)
		if(opt[c[i]])arr.pb(color);
		else arr.pb(-1);
	int tmp=perform_experiment(arr);
//	printf("---color:%d cnt:%d %d\n",color,cnt,tmp);
//	for(int x:idx)printf("%d ",x);puts("");
//	for(int x:lcy)printf("%d ",x);puts("");
//	for(int i=1;i<=n;i++)printf("%d ",get(i));puts("");
	return cnt!=tmp;
}

vector<int> find_colours(int N, vector<int> X, vector<int> Y) {
	n=N;m=X.size(); 
	for(int i=0;i<m;i++)g[X[i]+1].pb(Y[i]+1),g[Y[i]+1].pb(X[i]+1);
	for(int i=1;i<=n;i++)c[i]=i-1;
	for(int i=1;i<=n;i++){
		vector<int>buc;
		for(int x:g[i])
			if(x<i)buc.pb(x);
		if(!buc.size())continue;
		sort(buc.begin(),buc.end());
		int L=0,R=buc.size()-1;
		while(L<=R){
			init();
			for(int j=1;j<=n;j++)opt[j]=-1;
			for(int j=L;j<=R;j++)opt[buc[j]]=1;
			opt[i]=1;
			for(int j=1;j<=n;j++)
				for(int x:g[j])
					if(opt[j]==opt[x]){
						if(opt[j]==-1)merge(j,x);
						else if(c[j]==c[x])merge(j,x);
					}
			vector<int>arr;
			for(int i=1;i<=n;i++)
				if(opt[i]==-1)arr.pb(n);
				else arr.pb(-1);
			int tmp=perform_experiment(arr);
			if(tmp==cnt)break;
			int l=L,r=R,res=-1;
			while(l<=r){
				int mid=(l+r)>>1;init();
				for(int j=1;j<=n;j++)opt[j]=-1;
				for(int j=L;j<=mid;j++)opt[buc[j]]=1;
				opt[i]=1;
				for(int j=1;j<=n;j++)
					for(int x:g[j])
						if(opt[j]==opt[x]){
							if(opt[j]==-1)merge(j,x);
							else if(c[j]==c[x])merge(j,x);
						}
				vector<int>arr;
				for(int i=1;i<=n;i++)
					if(opt[i]==-1)arr.pb(n);
					else arr.pb(-1);
				int tmp=perform_experiment(arr);
				if(tmp!=cnt)res=mid,r=mid-1;
				else l=mid+1; 
			}
			if(res==-1)break;
			else{
				int x=c[buc[res]];
				for(int j=1;j<=n;j++)
					if(c[j]==x)c[j]=i-1;
				L=res+1;
			}
		}
	}
	bool ok=1;
	for(int i=1;i<=n;i++)ok&=(c[i]==n-1);
	if(ok){
		int ans=0;
		for(int c=0;c<n;c++){
			init();
			for(int j=1;j<n;j++)opt[j]=-1;opt[n]=1;
			for(int j=1;j<=n;j++)
				for(int x:g[j])
					if(opt[j]==-1&&opt[x]==-1)merge(j,x);
			vector<int>arr;
			for(int i=1;i<=n;i++)
				if(opt[i]==1)arr.pb(-1);
				else arr.pb(c);
			int tmp=perform_experiment(arr);
			if(tmp!=cnt){
				ans=c;
				break;
			}
		}
		vector<int>arr;
		for(int i=1;i<=n;i++)arr.pb(ans);
		return arr;
	}
	for(int i=1;i<=n;i++)c[i]++,buc[c[i]].pb(i);
	for(int i=1;i<=n;i++)
		for(int x:g[i])if(c[i]!=c[x])G[c[i]].pb(c[x]);
	dfs(n,1);
//	for(int x:v1)printf("%d ",x);puts("");
//	for(int x:v2)printf("%d ",x);puts("");
	for(int i=0;i<n;i++){
		if(check(v1,v2,i)){
//			printf("1:%d\n",i);
			int L=0,R=v1.size()-1;
			while(L<=R){
				vector<int>b1,b2;
				for(int i=0;i<=R;i++)
					if(L<=i&&i<=R)b1.pb(v1[i]);
					else b2.pb(v1[i]);
				for(int x:v2)b2.pb(x);
				if(!check(b1,b2,i))break;
				int l=L,r=R,res=-1;
				while(l<=r){
					int mid=(l+r)>>1;
					vector<int>b1,b2;
					for(int i=0;i<=R;i++)
						if(l<=i&&i<=r)b1.pb(v1[i]);
						else b2.pb(v1[i]);
					for(int x:v2)b2.pb(x);
					if(check(b1,b2,i))res=mid,r=mid;
					else l=mid+1;
				}
				if(res==-1)break;
				else{
					ans[v1[res]]=i;
					L=res+1;
				}
			}
		}
		if(check(v2,v1,i)){
//			printf("2:%d\n",i);
			int L=0,R=v2.size()-1;
			while(L<=R){
				vector<int>b1,b2;
				for(int i=0;i<=R;i++)
					if(L<=i&&i<=R)b2.pb(v2[i]);
					else b1.pb(v2[i]);
				for(int x:v1)b1.pb(x);
				if(!check(b2,b1,i))break;
				int l=L,r=R,res=-1;
				while(l<=r){
					int mid=(l+r)>>1;
					vector<int>b1,b2;
					for(int i=0;i<=R;i++)
						if(l<=i&&i<=r)b2.pb(v2[i]);
						else b1.pb(v2[i]);
					for(int x:v1)b1.pb(x);
					if(check(b2,b1,i))res=mid,r=mid;
					else l=mid+1;
				}
				if(res==-1)break;
				else{
					ans[v2[res]]=i;
					L=res+1;
				}
			}
		}
	}
	vector<int>arr;
	for(int i=1;i<=n;i++)arr.pb(ans[c[i]]);
	return arr;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Runtime Error

Test #1:

score: 3
Accepted
time: 0ms
memory: 3904kb

input:

1978433568
2
1
0
1
1978433568
1
1978433568
1
1978433568
1

output:

877694080
-1
-1
877694080
-1
-1
877694080
0
-1
877694081
0
0

result:

ok #experiments: 3

Test #2:

score: 0
Runtime Error

input:

1978433568
2
1
0
1
1978433568
2
1978433568
2
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
1978433568
1
19784335...

output:

877694080
-1
-1
877694080
0
-1
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0
877694080
-1
0...

result:


Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Runtime Error

Test #34:

score: 0
Runtime Error

input:

1978433568
250
249
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
...

output:

877694080
-1
-1
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
...

result:


Subtask #4:

score: 0
Runtime Error

Test #43:

score: 0
Runtime Error

input:

1978433568
250
31125
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
0
17
0
18
0
19
0
20
0
21
0
22
0
23
0
24
0
25
0
26
0
27
0
28
0
29
0
30
0
31
0
32
0
33
0
34
0
35
0
36
0
37
0
38
0
39
0
40
0
41
0
42
0
43
0
44
0
45
0
46
0
47
0
48
0
49
0
50
0
51
0
52
0
53
0
54
0
55
0
56
0
57
0
5...

output:

877694080
-1
-1
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
...

result:


Subtask #5:

score: 0
Skipped

Dependency #1:

0%