QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#573986#9319. Bull FarmqdsdsyTL 65ms23016kbC++144.0kb2024-09-18 20:30:362024-09-18 20:30:36

Judging History

你现在查看的是最新测评结果

  • [2024-09-18 20:30:36]
  • 评测
  • 测评结果:TL
  • 用时:65ms
  • 内存:23016kb
  • [2024-09-18 20:30:36]
  • 提交

answer

#include<cstdio>
#include<queue>
#include<algorithm>
#include<vector>
#include<bitset>
using namespace std;
#define MAXN 2010
#define MAXQ 1000010

int n,l,q;
int t[MAXN][MAXN];
struct node{
	int a,b,c,id;
	friend bool operator < (node a,node b){
		return a.c<b.c;	
	}
} op[MAXQ];
char ans[MAXQ];

struct edge{
	int v,nxt;
} e1[MAXN*MAXN];
int head[MAXN],cnte=0;
void ad(int u,int v){
	e1[++cnte].v=v;
	e1[cnte].nxt=head[u];
	head[u]=cnte;
}

vector <int> ve[MAXN],ed[MAXN];
int f[MAXN];
int find(int x){ return f[x]==x?x:f[x]=find(f[x]); }
void merge(int x,int y){
	int fx=find(x),fy=find(y);
	if(fx==fy) return;
	if(ed[fx].size()<ed[fy].size()) swap(fx,fy);
	for(int i=0;i<(int)ve[fy].size();i++)
		ed[fx].push_back(ed[fy][i]); 
	ed[fx].push_back(fy);
	f[fy]=fx;
	ed[fy].clear();
}

int dfn[MAXN],low[MAXN],tot=0;
int sta[MAXN],top=0;
int bel[MAXN],cntb=0;
bool vis[MAXN];
void tarjan(int u){
	dfn[u]=low[u]=++tot;
	sta[++top]=u;
	vis[u]=true;
	for(int i=head[u];i;i=e1[i].nxt){
		int v=e1[i].v;
		if(!dfn[v]){
			tarjan(v);
			low[u]=min(low[u],low[v]);
		}else if(vis[v]) low[u]=min(low[u],low[v]);
	}
	if(low[u]==dfn[u]){
		int t;
		++cntb;
		do{
			t=sta[top--];
			vis[t]=false;
			bel[t]=cntb;
		}while(t!=u);
	}
}

vector <int> e[MAXN];
bitset <MAXN> to[MAXN];
void dfs(int u){
	vis[u]=true;
	for(int i=0;i<(int)e[u].size();i++){
		int v=e[u][i];
		to[u]|=to[v];
		if(vis[v]) continue;
		dfs(v);
		to[u]|=to[v];
	}
}

char s[MAXN];
int typ[MAXN];
void solve(){
	scanf("%d%d%d",&n,&l,&q);
	
	cnte=0;
	for(int i=1;i<=n;i++){
		bel[i]=head[i]=0;
		ed[i].clear();
		ve[i].clear();
		f[i]=i;
	}
	
	for(int i=1;i<=l;i++){
		scanf("%s",s+1);
		for(int j=1;j<=n;j++)
			t[i][j]=(s[2*j-1]-'0')*50+(s[2*j]-'0');
	}
	for(int i=1;i<=q;i++){
		scanf("%s",s+1);
		op[i].a=(s[1]-'0')*50+(s[2]-'0');
		op[i].b=(s[3]-'0')*50+(s[4]-'0');
		op[i].c=(s[5]-'0')*50+(s[6]-'0'); 
		op[i].id=i;
		ans[i]=0;
	}
	
	sort(op+1,op+1+q);
	int now=0;
	for(int u=1;u<=n;u++)
		to[u][u]=1; 
	for(int i=1;i<=q;i++){
		int a=op[i].a,b=op[i].b,c=op[i].c,id=op[i].id;
		if(c==0){
			if(a==b)
				ans[id]='1';
			else ans[id]='0';
			continue;
		}
		while(now<c){
			now++;
			typ[now]=0;
			for(int j=1;j<=n;j++)
				vis[j]=false;
			for(int j=1;j<=n;j++){
				if(!vis[t[now][j]]) vis[t[now][j]]=true;
				else {
					if(!typ[now]) typ[now]=t[now][j]; 
					else typ[now]=-1;
				}
			}
			if(typ[now]==-1) continue;
			if(typ[now]){
				int id1=0,id2=0,id3=0;
				for(int j=1;j<=n;j++) vis[j]=false;
				for(int j=1;j<=n;j++){
					if(t[now][j]==typ[now])
						if(!id1) id1=j;
						else id2=j;
					vis[t[now][j]]=true; 
				}
				for(int j=1;j<=n;j++)
					if(!vis[j]) id3=j;
				ad(id1,id3);
				ad(id2,id3);
				ed[id1].push_back(id3);
				ed[id2].push_back(id3);
			}else {
				for(int j=1;j<=n;j++)
					vis[j]=false;
				for(int j=1;j<=n;j++){
					if(!vis[j]){
						int nowj=j;
						do{
							vis[nowj]=true;
							merge(nowj,j);
							nowj=t[now][nowj];
						} while(nowj!=j);
					}
				}
			}
			for(int i=1;i<=n;i++){
				dfn[i]=low[i]=vis[i]=bel[i]=0;
				e[i].clear();
			}
			cntb=tot=top=0;
			for(int i=1;i<=n;i++)
				if(!dfn[i])	tarjan(i);
			for(int u=1;u<=n;u++){
				if(u==find(u)){
					for(int i=0;i<(int)ed[u].size();i++){
						int v=ed[u][i];
						if(bel[u]!=bel[find(v)])
							e[bel[u]].push_back(bel[find(v)]);
					}
				}
			}
			for(int u=1;u<=cntb;u++)
				for(int v=1;v<=cntb;v++)
					to[u][v]=0;
			for(int u=1;u<=cntb;u++){
				to[u][u]=1;
				vis[u]=false;
			}
			for(int u=1;u<=n;u++)
				if(!vis[u]) dfs(u);
		}
		
		ans[id]=(int)to[bel[find(a)]][bel[find(b)]] + '0';
	}
	ans[q+1]=0;
	printf("%s\n",ans+1); 
}

int main()
{
	int t;
	scanf("%d",&t);
	while(t--)
		solve();
	return 0;
}
/*
2
5 2 4
0305040201
0404040404
030300
020500
050102
020501
6 2 4
030603010601
010203060504
030202
060402
050602
060401
*/
/*
1
3 3 6
020202
030301
030201
020102
030203
010201
010303
020303
010202
*/

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 10132kb

input:

2
5 2 4
0305040201
0404040404
030300
020500
050102
020501
6 2 4
030603010601
010203060504
030202
060402
050602
060401

output:

1011
0100

result:

ok 2 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 8188kb

input:

1
3 3 6
020202
030301
030201
020102
030203
010201
010303
020303
010202

output:

010101

result:

ok single line: '010101'

Test #3:

score: 0
Accepted
time: 65ms
memory: 12004kb

input:

200
10 10 5000
01060:04020305080709
0103070:060204050908
09070503080401060:02
050308010204090:0607
03010502040607080:09
03080109020504060:07
06050:09040302080107
07080305010409060:02
030809010:0204060507
0:060908070201050304
060700
090:03
09080:
070405
010703
0:0100
080601
030600
070206
0:0:09
08040...

output:

011110001101101111111111111111111101111111110111011110110110111011010111111111111111111101111111111110111111110111111111111101111111111110111111111111111111110001100111111111111111111111111011101111111111111111111111111111111111111111011011110100111110111111110111111100111111101110111111111101111110...

result:

ok 200 lines

Test #4:

score: 0
Accepted
time: 64ms
memory: 23016kb

input:

1
2000 1 1000000
M=:]A@8UAY7W2JJ4KEHIA[HSCQ1ENSC`JXR;F3PJ:_@41P9Z=9HR8P<<:DUXRR9^WOQFL?NZP6S@=J0^WE32=6;\U0?88]Q_RNPUMT6YU<4<S]H?:7OCQYOT4YAV1^764ENWSDBED>M7A:BI>KSIR48JQ9B=N\5T3N4A2aF0@>3TI81<G7;YE>W`NMP<:IT4CI3D0=GZC3I\CLQJQBA9BDIS9SAM55KaVA<Z@D=>:Y?CQHUQ5U3a6UVI8OKX9_FAF^7=5M85;<0;8YPAM<7Z7PP7A=N...

output:

000101000101100010001000000010010110000001000001001100000000010000100001000000101100000000010000001000000001110000010110100000111100100000001000000000011001010001000001001000100000000100011001100110010000010000101100000011111000000010000101010010000000010101000001010111100000100000000000000101000100...

result:

ok single line: '000101000101100010001000000010...0101000101000000000010101001000'

Test #5:

score: -100
Time Limit Exceeded

input:

1
2000 2000 1000000
FVAaH7GRPO;_11Da5J18@3SMG==\G8E8S^6:M4L0JH>MN5IXT>2<7WJ3U8LVJS=;;3F13>0D0>VOIIU@EPHG6ABL6;K?T1PXDERLG07]5C9^GDKG<SBMIW;`4W8P3=469TIPKH0O34523_J5C2MJ17D25Z@=K8H@M>WK<CMK7EO]BPD7B6AW741J5YIHIa1:ERSG>L3N2^F3<4F`DLE@2AA5=8GZK6:192FB736[WMV7:^DA2C:<LK040VJBM3M]WXU50`407TR_?PLF@5VL7OSL...

output:


result: