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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
#80576#5173. 染色LWLAymh0 36ms19372kbC++143.0kb2023-02-24 11:48:352023-02-24 11:48:37

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 11:48:37]
  • 评测
  • 测评结果:0
  • 用时:36ms
  • 内存:19372kb
  • [2023-02-24 11:48:35]
  • 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[r-1]-flag1[l]!=r-1-l)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;
}

詳細信息

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 17296kb

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:

3813
4757
6211
8703
757
7287
190
7599
513
1187
264
2334
13730
6499
473
7801
2236
10893
1858
2772
4986
303
6227
651
6921
6422
11825
2818
3285
8138
18463
531
5696
18512
9941
6391
5191
15142
692
482
16213
13130
9216
8135
11399
6865
6650
5223
9455
8858
2263
10699
2788
13028
5144
2230
9136
1980
6720
2943...

result:

wrong answer 1st words differ - expected: '3668', found: '3813'

Subtask #2:

score: 0
Wrong Answer

Test #7:

score: 0
Wrong Answer
time: 36ms
memory: 19372kb

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:

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
135951
4551
49084
70881
38498
11191
28347
37...

result:

wrong answer 1st words differ - expected: '113194', found: '128352'

Subtask #3:

score: 0
Wrong Answer

Test #15:

score: 0
Wrong Answer
time: 3ms
memory: 17288kb

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:

1353
2759
1778
2665
4866
5107
3024
1359
901
5167
7983
4961
954
937
822
7430
7810
5450
3896
3306
4568
1607
2582
40
925
309
4455
3972
3884
5846
4719
1692
445
1449
3692
5363
580
122
2089
7758
9297
2096
3181
3752
2950
431
741
4102
183
3302
1469
1632
7264
3071
6081
8243
1579
3878
366
4564
3355
1783
834
2...

result:

wrong answer 1st words differ - expected: '1322', found: '1353'

Subtask #4:

score: 0
Time Limit Exceeded

Test #23:

score: 0
Time Limit Exceeded

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:

1270837
310328
764283
79896
161234
580078
993703
1725609
1352531
216386
619391
549268
1393595
322493
1100382
52572
277656
228815
2492
148572
145586
670804
25565
225019
185373
1453210
1675547
550683
147235
974688
1112614
238859
821830
113118
85279
1195295
318431
721953
170463
562948
772053
414516
736...

result: