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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#80584#5173. 染色LWLAymh0 565ms52128kbC++143.1kb2023-02-24 12:03:422023-02-24 12:03:44

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-02-24 12:03:44]
  • 评测
  • 测评结果:0
  • 用时:565ms
  • 内存:52128kb
  • [2023-02-24 12:03:42]
  • 提交

answer

#include<algorithm>
#include<cstring>
#include<cstdio>
#include<queue>
#define ll long long
#define qwq 2000007
inline int read(){
	char c=getchar();
	int x=0;int flag=0;
	for(;c<'0'||c>'9';c=getchar())flag|=(c=='-');
	for(;c<='9'&&c>='0';c=getchar())x=(x<<1)+(x<<3)+c-'0';
	if(flag)return -x;
	return x;
}
int n,q;
int a[qwq];
int flag1[qwq];
struct Line{
	int l,r;
}b[qwq],c[qwq];
int cntb,cntc;
bool cmpLine(Line x,Line y){
	if(x.r!=y.r)return x.r<y.r;
	return x.l>y.l;
}
int L[qwq];
inline void add_line(int l,int r){
//	printf("add[%d,%d]\n",l,r);
	++cntb;
	b[cntb].l=l;b[cntb].r=r;
	return ;
}
struct ASK{
	int l,r;
	int num;
}ask[qwq];
bool cmpASK(ASK x,ASK y){
	return x.l<y.l;
}
int ans[qwq];
int T[qwq];
#define pii std::pair<int,int>
#define mp std::make_pair
std::priority_queue<pii>p_que;
int fa[qwq];
int get_f(int x){
	if(fa[x]==x)return x;
	return fa[x]=get_f(fa[x]);
}
struct tree{
	int son[2];
	int dis;
	int val;
	int tag;
}tr[qwq];
int merge(int x,int y){
	if(!x)return y;
	if(!y)return x;
	if(tr[x].val<tr[y].val)std::swap(x,y);
	if(tr[x].val==tr[y].val&&y>x)std::swap(x,y);
	tr[y].son[1]=merge(x,tr[y].son[1]);
	if(tr[tr[y].son[1]].dis>tr[tr[y].son[0]].dis)std::swap(tr[y].son[0],tr[y].son[1]);
	tr[y].dis=tr[tr[y].son[1]].dis+1;
	return y;
}
inline int delet(int x){
	x=get_f(x);
	return fa[x]=fa[tr[x].son[0]]=fa[tr[x].son[1]]=merge(tr[x].son[0],tr[x].son[1]);
}
int main(){
	scanf("%d%d",&n,&q);
	for(int i=1;i<=n;++i){
		scanf("%d",&a[i]);
	} 
	int lasl=1,lasr=1;
	for(int i=2;i<=n;++i){
		if(a[i]==a[lasr])++lasr;
		else {
			add_line(lasl,lasr);
			lasl=i;lasr=i;
		}
	}
	add_line(lasl,lasr);
	for(int i=1;i<=cntb;++i){
		L[i]=b[i].l;
		if(b[i].l==b[i].r){
			flag1[b[i].l]=1;
		}
	}
	for(int i=1;i<=n;++i)flag1[i]+=flag1[i-1];
	for(int i=1;i<=cntb;++i){
		if(T[a[b[i].l]]){
			int l=T[a[b[i].l]];
			int r=i;
			if(flag1[b[r].l-1]-flag1[b[l].r]!=b[r].l-1-b[l].r)continue;
			++cntc;
			c[cntc].l=l,c[cntc].r=r;
			printf("[%d,%d]\n",l,r);
		}
		T[a[b[i].l]]=i;
	}
	std::sort(c+1,c+cntc+1,cmpLine);
	for(int i=1;i<=q;++i){
		int x=read(),y=read();
		if(x>y)std::swap(x,y);
		if(x==y){
			printf("%d\n",0);
			--q;--i;
			continue;
		}
		int l=std::upper_bound(L+1,L+cntb+1,x)-L-1;
		int r=std::upper_bound(L+1,L+cntb+1,y)-L-1;
		ans[i]=r-l+y-x;
		ask[i].l=l;ask[i].r=r;ask[i].num=i;
		int R=l,cnt=0;
//		for(int j=1;j<=cntc;++j){
//			if(c[j].r>r)continue;
//			if(c[j].l>=R){
//				R=c[j].r;++cnt;
//			}
//		}
		printf("%d\n",ans[i]-cnt);
	}
	
//	std::sort(ask+1,ask+q+1,cmpASK);
//	int lasask=1,lasc=1;
//	for(int r=1;r<=cntb;++r){
//		for(;lasask<=q&&ask[lasask].l==r;++lasask){
//			p_que.push(mp(-ask[lasask].l,lasask));
//			tr[lasask].val=ask[lasask].r;
//			fa[lasask]=lasask;
//		}
//		for(;lasc<=cntc&&c[lasc].r==r;++lasc){
//			while(!p_que.empty()){
//				int x=p_que.top().second,R=-p_que.top().first;
//				if(ask[lasask].r<r){
//					int x=delet(lasask);
//					if(x!=0)p_que.push(mp(-ask[x].r,x));
//					continue;
//				}
//			}
//		}
//	}	
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 3ms
memory: 19364kb

input:

10000 100
84 85 52 2 78 53 20 21 23 76 37 44 18 5 37 8 81 65 46 58 69 1 69 37 53 46 37 35 35 89 1 77 35 6 46 59 89 46 25 55 50 38 61 67 44 23 29 24 46 4 42 15 34 77 20 34 83 79 12 50 69 26 38 14 9 66 80 72 22 26 9 68 35 38 19 84 92 30 83 62 100 71 81 60 7 37 64 50 33 60 86 75 45 78 32 53 3 48 87 60 ...

output:

[11,15]
[21,23]
[15,24]
[6,25]
[19,26]
[24,27]
[28,32]
[29,36]
[31,53]
[52,55]
[40,59]
[41,62]
[61,69]
[64,70]
[32,72]
[62,73]
[56,78]
[59,87]
[83,89]
[89,99]
[81,103]
[39,106]
[67,108]
[55,109]
[74,112]
[102,113]
[65,114]
[33,115]
[51,117]
[96,118]
[53,119]
[118,120]
[106,121]
[77,122]
[92,124]
[11...

result:

wrong answer 1st words differ - expected: '3668', found: '[11,15]'

Subtask #2:

score: 0
Wrong Answer

Test #7:

score: 0
Wrong Answer
time: 39ms
memory: 17376kb

input:

100000 100000
3 2 3 3 3 3 2 3 2 1 3 1 1 1 3 2 1 3 1 2 2 1 3 1 2 2 1 1 1 3 2 1 3 3 3 3 1 1 1 2 3 3 2 1 1 1 3 1 3 1 3 2 1 3 2 3 3 2 3 3 2 3 3 3 3 3 2 3 2 3 1 3 3 3 3 3 3 3 1 2 3 3 1 3 1 1 2 2 3 1 1 2 3 2 3 1 3 2 1 3 2 3 2 1 1 3 3 1 3 1 2 2 2 3 2 3 2 3 2 1 1 3 1 3 2 2 3 3 3 1 2 2 3 3 2 1 3 1 2 2 2 3 2 ...

output:

[1,3]
[3,5]
[5,8]
[7,9]
[9,12]
[12,14]
128352
150899
62213
7320
10434
88757
106497
33161
44094
126519
75568
8160
74877
48480
50589
55889
12574
122114
81271
12099
5357
98811
53111
85916
30888
12412
13903
67422
21123
62474
13153
8882
6256
43916
76308
66138
19211
79437
79788
60826
58789
630
20953
13595...

result:

wrong answer 1st words differ - expected: '113194', found: '[1,3]'

Subtask #3:

score: 0
Wrong Answer

Test #15:

score: 0
Wrong Answer
time: 3ms
memory: 17392kb

input:

5000 5000
256 63 197 36 75 66 33 72 27 75 66 248 29 166 209 252 141 95 84 226 147 249 116 94 192 256 199 273 182 166 116 274 27 211 154 144 283 23 53 110 215 11 164 284 161 221 251 96 43 47 18 115 12 51 156 61 116 209 93 98 47 165 174 106 83 67 184 75 12 290 183 197 112 240 67 56 215 148 104 5 141 2...

output:

[5,10]
[6,11]
[1,26]
[14,30]
[23,31]
[9,33]
[31,57]
[15,58]
[50,61]
[10,68]
[53,69]
[3,72]
[66,75]
[41,77]
[17,81]
[59,83]
[2,84]
[16,86]
[62,87]
[12,89]
[78,96]
[84,102]
[76,114]
[80,117]
[24,127]
[25,129]
[93,133]
[107,134]
[127,135]
[4,137]
[13,138]
[124,140]
[88,145]
[37,151]
[102,156]
[123,159]...

result:

wrong answer 1st words differ - expected: '1322', found: '[5,10]'

Subtask #4:

score: 0
Wrong Answer

Test #23:

score: 0
Wrong Answer
time: 565ms
memory: 52128kb

input:

1000000 1000000
1105 3246 1880 3554 818 2331 2576 4140 149 4562 3498 3536 3400 4788 4363 4742 1216 4218 4032 1701 1489 4889 1761 3022 3145 4945 3067 4304 5016 4624 1612 13 1335 3613 1086 2210 386 3464 1156 3352 4341 5006 3465 3900 622 654 1826 2983 1250 4164 3335 4308 2995 1982 1347 4335 2535 5054 4...

output:

[73,100]
[61,152]
[139,177]
[162,222]
[222,224]
[187,294]
[152,321]
[62,325]
[312,342]
[49,355]
[205,362]
[94,377]
[370,380]
[21,387]
[101,389]
[399,403]
[215,405]
[282,418]
[263,442]
[58,444]
[371,450]
[351,466]
[470,486]
[352,496]
[346,509]
[50,523]
[88,525]
[402,528]
[260,530]
[460,538]
[485,539]...

result:

wrong answer 1st words differ - expected: '1263815', found: '[73,100]'