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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
#80589#5173. 染色LWLAymh0 809ms84452kbC++144.0kb2023-02-24 12:43:382023-02-24 12:43:40

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 12:43:40]
  • 评测
  • 测评结果:0
  • 用时:809ms
  • 内存:84452kb
  • [2023-02-24 12:43:38]
  • 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;
struct tree{
	int son[2];
	int dis;
	int val;
	int tag;
	int ans;
}tr[qwq];
inline void add_v(int x,int v){
	tr[x].tag+=v;
	tr[x].ans+=v;
	return ;
}
inline void pushdown(int x){
	if(tr[x].tag){
		if(tr[x].son[0])add_v(tr[x].son[0],tr[x].tag);
		if(tr[x].son[1])add_v(tr[x].son[1],tr[x].tag);
		tr[x].tag=0;
	}
	return ;
}
int merge(int x,int y){
	if(!x)return y;
	if(!y)return x;
	pushdown(x);
	pushdown(y);
	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;
}
int flagdel[qwq];
inline int delet(int x){
	flagdel[x]=1;
	pushdown(x);
	return merge(tr[x].son[0],tr[x].son[1]);
}
void dfs_pushdown(int x){
	pushdown(x);
	if(tr[x].son[0]){
		dfs_pushdown(tr[x].son[0]);
	}
	if(tr[x].son[1]){
		dfs_pushdown(tr[x].son[1]);
	}
	return ;
}
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){
				++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);
	int num=0;
	for(int i=1;i<=q;++i){
		++num;
		int x=read(),y=read();
		if(x>y)std::swap(x,y);
		if(x==y){
			--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;
	//	printf("[%d,%d]\n",l,r);
		ans[num]=r-l+y-x;
		ask[i].l=l;ask[i].r=r;ask[i].num=num;
//		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);
//	for(int i=1;i<=q;++i){
//		printf("ask[%d,%d]:%d\n",ask[i].l,ask[i].r,ask[i].num);
//	}
	int lasask=1,lasc=1;
	for(int r=1;r<=cntb;++r){
	//	printf("nowwork%d\n",r);
		for(;lasask<=q&&ask[lasask].l==r;++lasask){
			p_que.push(mp(-ask[lasask].l,lasask));
			tr[lasask].val=ask[lasask].r;
		}
	//	printf("qwq\n");
		for(;lasc<=cntc&&c[lasc].r==r;++lasc){
			int nowx=0;
			while(!p_que.empty()){
				int x=p_que.top().second,R=-p_que.top().first;
				if(ask[x].r<r){
					int x=delet(x);
					p_que.pop();
					if(x!=0)p_que.push(mp(-R,x));
					continue;
				}
				if(R>c[lasc].l){
					break;
				}
			//	printf("nowget:%d\n",x);
				nowx=merge(nowx,x);
				p_que.pop();
			}
			if(nowx!=0){
				add_v(nowx,1);
				p_que.push(mp(-c[lasc].r,nowx));
			}
		}
	}
//	printf("initOK\n");
	while(!p_que.empty()){
		int x=p_que.top().second;
		dfs_pushdown(x);
		p_que.pop();
	}
	for(int i=1;i<=q;++i){
		ans[ask[i].num]-=tr[i].ans;
	//	printf("%d:%d\n",ask[i].num,tr[i].ans);
	}
	for(int i=1;i<=num;++i){
		printf("%d\n",ans[i]);
	}
	return 0;
}

詳細信息

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 8ms
memory: 21468kb

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:

3796
4747
6203
8669
729
7280
183
7558
492
1140
253
2285
13728
6485
473
7801
2175
10892
1854
2771
4980
293
6213
627
6906
6420
11827
2818
3285
8138
18456
529
5696
18518
9941
6391
5185
15141
692
463
16213
13142
9204
8131
11404
6857
6647
5191
9453
8854
2251
10691
2750
13024
5035
2203
9141
1966
6666
2931...

result:

wrong answer 1st words differ - expected: '3668', found: '3796'

Subtask #2:

score: 0
Wrong Answer

Test #7:

score: 0
Wrong Answer
time: 57ms
memory: 23736kb

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
150896
62213
7308
10431
88737
106496
33148
44094
126519
75565
8152
74877
48480
50556
55887
12574
122112
81270
12099
5331
98810
53110
85916
30888
12398
13899
67422
21123
62473
13152
8881
6254
43916
76308
66138
19211
79437
79787
60826
58788
613
20952
135949
4545
49084
70881
38494
11190
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: 4ms
memory: 19360kb

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
1779
2667
4867
5109
3024
1359
901
5182
7991
4966
953
943
822
7437
7833
5450
3897
3306
4575
1609
2594
40
925
309
4455
3972
3893
5862
4719
1692
442
1449
3701
5371
578
121
2089
7781
9318
2096
3188
3761
2950
429
741
4102
182
3302
1473
1637
7283
3072
6088
8262
1579
3887
370
4573
3369
1782
836
2...

result:

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

Subtask #4:

score: 0
Wrong Answer

Test #23:

score: 0
Wrong Answer
time: 809ms
memory: 84452kb

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
310327
764303
79896
161233
580078
993703
1725609
1352531
216386
619391
549268
1393595
322493
1100382
52572
277656
228838
2486
148572
145585
670804
25564
225019
185373
1453210
1675547
550682
147232
974688
1112613
238859
821830
113118
85279
1195295
318431
721953
170462
562948
772053
414516
736...

result:

wrong answer 1st words differ - expected: '1263815', found: '1270837'