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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
#859206#9676. AncestorsAurore11 717ms64556kbC++233.0kb2025-01-17 16:26:462025-01-17 16:27:13

Judging History

你现在查看的是最新测评结果

  • [2025-01-17 16:27:13]
  • 评测
  • 测评结果:11
  • 用时:717ms
  • 内存:64556kb
  • [2025-01-17 16:26:46]
  • 提交

answer

#include<bits/stdc++.h>
//#define int long long
using namespace std;
inline int read(){
	int x=0,f=1;char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-f;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}
int buf[30];
inline void print(int x,char ch=' '){
	if(x<0) putchar('-'),x=-x;
	int tot=0;
	do{
		buf[++tot]=x%10;
		x/=10;
	}while(x);
	for(int i=tot;i;i--) putchar(buf[i]+'0');
	putchar(ch);
}
const int MAXN=1e5+5;
int n,m,root;
vector<int> e[MAXN];

struct node{
	int siz,son,dep,dist;
}a[MAXN];
void dfs1(int x,int dep){
	a[x].siz=1,a[x].dep=dep;
	for(int to:e[x]){
		dfs1(to,dep+1);
		a[x].siz+=a[to].siz;
		if(a[to].dist>a[a[x].son].dist)
			a[x].son=to;
	}
	a[x].dist=a[a[x].son].dist+1;
}

int *f[MAXN],g[MAXN],*now=g;
set<int> s[MAXN];
int num;
struct Node{
	int l,r,x;
	Node(int a=0,int b=0,int c=0){l=a,r=b,x=c;}
}b[MAXN*40];
void merge(int x,int y,int limit){
	if(s[x].size()<s[y].size())
		swap(s[x],s[y]);
	for(int z:s[y]){
		set<int>::iterator it=s[x].lower_bound(z);
		if(it!=s[x].end())
			b[++num]=Node(z,*it,limit);
		if(it!=s[x].begin()){
			it--;
			b[++num]=Node(*it,z,limit);
		}
	}
	for(int z:s[y]) s[x].insert(z);
}
void dfs2(int x){
	f[x][0]=f[x]-g;
	s[f[x][0]].insert(x);
	if(!a[x].son) return ;
	f[a[x].son]=f[x]+1;
	dfs2(a[x].son);
	vector<int> temp;
	for(int to:e[x]){
		if(to==a[x].son) continue;
		f[to]=now,now+=a[to].dist;
		dfs2(to);
		for(int i=0;i<a[to].dist;i++)
			merge(f[x][i+1],f[to][i],i+1);
	}
}

struct segment_tree{
	struct sgt{
		int ls,rs,sum;
	}t[MAXN*20];
	int rot[MAXN],tot;
	void pushup(int i){
		t[i].sum=t[t[i].ls].sum+t[t[i].rs].sum;
	}
	void update(int &i,int rot,int l,int r,int k){
		i=++tot;
		if(l==r)
			return (void)(t[i].sum=t[rot].sum+1);
		int mid=(l+r)>>1;
		t[i]=t[rot];
		if(mid>=k)
			update(t[i].ls,t[rot].ls,l,mid,k);
		else
			update(t[i].rs,t[rot].rs,mid+1,r,k);
		pushup(i); 
	}
	int query(int rot1,int rot2,int l,int r,int L,int R){
		if(L<=l&&r<=R)
			return t[rot2].sum-t[rot1].sum;
		int mid=(l+r)>>1;
		if(R<=mid)
			return query(t[rot1].ls,t[rot2].ls,l,mid,L,R);
		if(mid<L)
			return query(t[rot1].rs,t[rot2].rs,mid+1,r,L,R);
		return query(t[rot1].ls,t[rot2].ls,l,mid,L,mid)+
		       query(t[rot1].rs,t[rot2].rs,mid+1,r,mid+1,R);
	}
}sgt;
signed main(){
	n=read(),m=read();
	for(int i=1;i<=n;i++){
		int x=read();
		if(x==0) root=i;
		else e[x].push_back(i);
	}
	
	dfs1(root,1);
	f[root]=now,now+=a[root].dist;
	dfs2(root);
	
	for(int i=1;i<=n;i++)
		sgt.update(sgt.rot[i],sgt.rot[i-1],1,n,a[i].dep);
	
	while(m--){
		int l=read(),r=read(),x=read();
		if(x==n){
			print(0,'\n');
			continue;
		}
		int ans=sgt.query(sgt.rot[l-1],sgt.rot[r],1,n,x+1,n);
		for(int i=l;i<=r;i++){
			if(a[i].dep>x){
				bool flag=0;
				for(int j=1;j<=num;j++){
					if(l<=b[j].l&&b[j].r==i&&b[j].x<=x){
						flag=1;
						break;
					}
				}
				ans-=flag;
			}
		}
		print(ans,'\n');
	}
	return 0;
}

詳細信息

Subtask #1:

score: 11
Accepted

Test #1:

score: 11
Accepted
time: 3ms
memory: 58964kb

input:

7 5
3 1 0 5 3 5 1
1 3 1
5 7 2
1 5 1
4 7 1
4 7 2

output:

2
1
3
3
1

result:

ok 5 number(s): "2 1 3 3 1"

Test #2:

score: 11
Accepted
time: 3ms
memory: 59208kb

input:

1000 1000
686 337 192 336 405 0 108 485 350 762 258 780 179 939 25 657 571 662 119 786 604 224 935 494 685 575 369 178 249 740 954 204 598 592 68 771 498 86 55 38 298 704 239 292 993 286 16 813 719 187 14 476 792 49 944 52 227 720 310 470 900 243 663 950 627 300 728 189 45 610 673 548 873 95 48 841 ...

output:

452
67
611
126
329
486
354
25
559
585
184
265
576
116
489
289
147
287
13
282
151
192
146
141
148
131
43
72
69
29
5
15
57
10
9
16
87
162
19
217
232
24
178
334
103
139
293
400
299
351
529
632
592
296
640
678
715
708
52
465
322
731
2
69
110
286
172
0
40
31
16
105
75
45
8
94
540
115
357
7
11
431
581
37
...

result:

ok 1000 numbers

Test #3:

score: 11
Accepted
time: 42ms
memory: 57160kb

input:

1000 1000
594 766 788 546 408 364 152 525 963 359 339 746 747 58 628 60 144 646 222 863 418 1000 494 84 225 21 202 146 81 879 239 526 662 816 483 140 7 834 978 26 370 619 12 112 824 319 855 852 877 32 708 236 296 791 40 102 238 930 734 609 740 309 982 837 272 451 825 977 717 597 761 90 305 224 216 8...

output:

441
362
300
535
197
383
360
29
428
31
473
9
310
242
232
37
96
227
50
146
180
93
108
83
58
106
61
26
61
32
7
25
54
25
59
17
48
42
68
237
83
95
206
339
161
47
377
250
335
136
436
98
6
515
216
132
263
270
137
463
117
292
61
468
237
326
149
0
126
228
353
168
76
332
169
98
75
418
49
133
284
281
282
134
1...

result:

ok 1000 numbers

Test #4:

score: 11
Accepted
time: 73ms
memory: 59136kb

input:

1000 1000
330 124 926 768 265 445 803 501 173 371 897 686 88 668 787 5 440 818 604 119 918 821 30 400 391 262 299 334 279 58 45 101 814 582 467 182 538 549 455 761 121 769 480 639 605 906 883 341 138 862 684 42 855 535 778 154 407 439 967 780 128 565 622 739 910 69 647 612 345 407 929 352 296 869 31...

output:

347
340
86
105
386
17
172
27
104
146
341
160
298
321
97
112
232
110
222
37
40
42
84
173
114
25
82
81
56
14
1
2
41
62
12
126
122
50
125
152
100
123
26
0
106
34
173
52
184
89
268
270
152
77
39
322
154
50
0
284
146
199
54
149
27
18
101
84
140
232
73
199
334
195
35
1
107
138
1
25
158
78
4
10
178
202
315...

result:

ok 1000 numbers

Test #5:

score: 11
Accepted
time: 106ms
memory: 56960kb

input:

1000 1000
461 631 908 871 9 818 589 859 917 846 415 498 899 405 954 857 192 327 912 204 453 253 923 705 211 775 882 41 956 634 761 588 676 694 428 729 575 747 216 979 10 472 471 422 580 944 295 121 62 603 376 520 720 864 792 22 891 773 77 520 801 680 590 70 617 807 784 136 566 699 167 726 75 701 780...

output:

95
177
33
70
54
125
39
35
0
263
17
65
55
46
144
73
55
152
58
145
194
103
68
101
34
32
83
60
43
24
0
1
23
46
51
114
57
27
116
38
86
70
53
52
147
129
136
46
41
14
137
154
161
159
205
6
149
157
21
24
7
50
81
9
15
53
13
134
225
36
32
3
104
44
73
139
35
24
191
94
61
128
399
29
103
2
31
34
23
116
9
91
158...

result:

ok 1000 numbers

Test #6:

score: 11
Accepted
time: 130ms
memory: 59136kb

input:

1000 1000
287 431 325 595 467 406 982 985 603 656 520 452 564 548 370 451 331 407 538 749 304 421 813 467 941 545 807 796 484 617 276 908 461 162 323 903 455 796 466 897 972 859 359 684 644 348 245 579 149 18 702 537 415 64 906 382 210 478 145 369 128 336 574 86 847 475 671 849 135 238 920 421 512 9...

output:

117
162
29
84
31
73
55
52
148
119
26
88
88
186
44
96
41
39
276
8
27
81
60
38
58
13
5
17
17
32
8
14
26
24
23
10
58
52
140
6
63
14
66
99
185
207
51
163
61
13
1
183
252
70
87
42
45
127
108
23
92
70
4
35
136
143
7
34
7
53
31
57
39
11
24
132
13
0
23
39
37
13
16
60
25
5
10
130
0
47
5
1
103
54
45
24
31
176...

result:

ok 1000 numbers

Test #7:

score: 11
Accepted
time: 172ms
memory: 59168kb

input:

1000 1000
744 630 563 578 427 227 792 774 559 165 201 450 227 905 966 321 29 908 183 636 603 275 148 739 196 551 884 685 487 276 139 646 352 52 96 246 212 295 502 968 1000 938 121 100 326 309 567 582 744 290 170 312 464 262 768 179 921 741 4 431 107 465 240 973 526 369 172 744 580 420 134 566 875 85...

output:

65
71
39
51
42
31
29
29
3
25
170
6
3
38
58
97
9
11
65
3
27
29
136
24
108
67
83
54
38
13
0
11
58
22
33
17
6
5
50
96
75
13
60
32
239
165
20
49
16
69
73
280
98
29
341
67
25
21
46
69
101
65
12
134
81
3
61
10
5
4
42
46
23
88
39
153
96
55
14
31
1
0
48
57
42
4
24
95
41
68
13
24
20
0
9
28
190
53
35
79
68
10...

result:

ok 1000 numbers

Test #8:

score: 11
Accepted
time: 216ms
memory: 59264kb

input:

1000 1000
566 649 769 706 200 912 838 31 319 791 685 53 463 151 803 239 656 355 5 739 729 295 655 349 403 776 187 277 256 792 488 796 953 925 702 255 740 794 33 801 137 591 875 101 842 815 969 713 701 295 202 360 44 959 494 684 80 425 270 272 155 700 287 994 921 12 214 831 963 307 167 946 980 782 81...

output:

23
429
186
23
122
29
32
75
247
7
60
82
114
17
113
19
17
47
151
25
45
16
162
28
74
17
114
2
17
12
8
0
24
50
102
19
83
10
18
145
1
23
228
277
54
0
124
9
59
114
11
61
5
93
105
29
160
47
97
3
17
23
26
15
27
51
9
6
40
46
97
14
29
20
91
62
19
26
6
46
26
0
10
91
33
37
104
218
61
53
2
172
8
167
50
32
17
2
2...

result:

ok 1000 numbers

Test #9:

score: 11
Accepted
time: 278ms
memory: 59264kb

input:

1000 1000
764 506 989 348 872 809 829 365 739 924 383 727 511 53 628 31 786 95 836 751 621 947 398 814 190 398 382 895 663 98 296 28 960 509 354 106 523 62 630 423 270 16 764 118 607 33 336 459 185 812 315 1 998 174 943 523 277 734 72 202 905 542 173 138 493 585 793 61 427 94 283 295 278 142 748 604...

output:

61
87
61
0
1
290
103
370
361
83
345
38
215
6
54
12
0
45
218
0
49
224
151
10
12
160
96
13
42
1
8
3
44
70
12
35
3
9
51
64
55
31
249
21
352
289
12
16
422
35
21
4
79
504
376
69
69
58
403
240
105
24
74
11
18
157
2
15
10
17
55
39
30
36
20
74
127
64
0
7
41
0
2
41
0
27
47
25
54
4
27
1
65
0
87
1
144
4
36
178...

result:

ok 1000 numbers

Test #10:

score: 11
Accepted
time: 301ms
memory: 57160kb

input:

1000 1000
522 493 442 21 785 730 493 508 750 600 670 661 422 716 820 417 819 974 83 859 382 748 63 262 960 384 999 579 653 955 870 496 136 473 764 117 523 224 160 254 868 45 200 609 442 512 449 7 826 534 765 36 65 834 740 543 138 245 230 722 287 791 649 497 960 953 194 362 124 759 719 347 443 126 31...

output:

8
40
22
207
39
15
508
147
21
19
454
25
318
68
171
21
157
0
80
18
8
209
29
13
73
12
73
91
0
3
9
6
6
0
0
0
27
0
2
4
130
79
182
59
9
205
26
4
4
307
73
106
147
110
4
39
4
7
113
1
0
57
331
4
69
67
4
181
83
23
32
20
246
14
37
28
6
356
4
213
10
7
50
21
56
2
4
1
4
6
7
7
13
59
176
11
2
20
13
6
24
66
67
117
1...

result:

ok 1000 numbers

Test #11:

score: 11
Accepted
time: 302ms
memory: 59264kb

input:

1000 1000
395 337 905 274 702 42 864 411 818 384 745 901 328 380 321 822 953 182 278 962 907 207 8 131 424 928 456 567 119 305 423 443 531 408 532 882 722 488 365 554 811 619 280 184 183 964 802 719 293 637 234 177 6 684 454 375 105 561 879 880 805 196 609 255 8 768 772 757 359 184 294 623 125 44 21...

output:

127
17
79
12
1
190
477
12
282
7
11
11
7
5
239
104
1
148
5
44
43
14
26
0
36
23
21
36
11
17
8
12
3
2
17
10
1
0
32
13
0
6
0
0
41
0
42
69
6
2
416
32
447
457
10
186
48
123
7
81
126
17
2
52
27
0
1
3
32
1
307
2
14
3
13
0
4
69
0
0
1
0
13
267
6
119
0
2
27
1
5
0
46
17
0
34
17
310
34
17
34
24
0
71
3
56
1
1
5
2...

result:

ok 1000 numbers

Test #12:

score: 11
Accepted
time: 255ms
memory: 59212kb

input:

1000 1000
797 184 557 796 605 213 135 636 713 129 518 178 641 192 850 415 492 26 472 129 586 505 121 348 631 948 725 403 988 937 277 20 738 69 441 207 523 337 809 550 433 66 389 9 380 86 774 525 238 687 277 28 914 538 695 188 588 736 536 135 491 143 568 448 960 209 152 569 707 586 129 25 389 425 93 ...

output:

68
11
0
171
458
11
161
62
62
6
0
0
6
92
0
0
16
81
0
0
12
5
3
61
91
15
120
61
68
1
1
1
23
1
1
14
121
45
147
0
19
259
273
127
198
2
3
24
60
0
5
40
413
158
435
161
66
11
68
68
28
109
76
1
6
19
2
9
8
266
89
0
1
10
5
0
1
6
59
31
268
13
61
205
0
0
157
97
0
0
72
10
9
0
17
52
1
46
44
0
172
24
56
55
383
2
44...

result:

ok 1000 numbers

Test #13:

score: 11
Accepted
time: 717ms
memory: 57288kb

input:

1000 1000
518 308 645 387 69 663 532 44 924 655 952 521 239 811 208 909 531 329 376 778 885 471 42 815 506 155 344 704 90 99 133 29 881 491 528 869 791 352 703 261 13 695 902 19 276 449 950 727 52 55 253 50 708 487 497 967 310 234 570 953 530 120 158 94 687 269 993 945 331 79 897 471 488 655 252 632...

output:

7
62
62
31
124
0
3
3
62
124
249
91
3
0
7
3
7
0
302
7
90
102
31
62
190
7
500
0
15
265
15
100
245
15
31
0
1
62
15
31
7
15
240
1
31
62
83
15
1
62
147
15
62
50
133
438
8
64
124
1
1
15
62
0
1
62
0
0
0
331
31
3
3
3
15
3
7
240
3
3
0
0
1
11
124
7
124
339
225
84
31
249
186
7
1
125
0
248
0
62
1
1
15
0
3
3
1
5...

result:

ok 1000 numbers

Subtask #2:

score: 0
Time Limit Exceeded

Dependency #1:

100%
Accepted

Test #14:

score: 13
Accepted
time: 92ms
memory: 64556kb

input:

10000 10000
9604 441 474 6593 7295 7622 5538 3949 131 5596 7590 2194 8222 6170 5424 6009 9447 9516 3302 3375 2030 4876 99 2757 3207 7323 7979 255 9612 1485 5970 2268 2899 6083 7319 7491 2335 1878 5123 5338 3470 80 895 6483 9950 4840 3548 8394 5702 8400 8010 1 3760 4207 8587 1193 1562 8196 9645 824 1...

output:

576
3056
2286
1145
1535
99
619
5349
8135
8913
3560
7476
6513
8575
5129
7417
6309
7237
556
38
5242
7158
1208
6373
1600
2033
573
6740
3365
4141
2173
2663
986
2790
1374
3157
2241
1482
3538
254
1995
1747
5688
5555
2437
4087
621
852
2311
2464
682
3720
1862
1876
1590
3220
3809
2029
3531
918
1040
1585
2647...

result:

ok 10000 numbers

Test #15:

score: 0
Time Limit Exceeded

input:

10000 10000
1692 7955 6503 5384 1267 9294 679 7789 9455 6927 9650 8926 132 6924 2657 3236 6893 4435 8659 3600 3737 7703 2013 4434 7110 4972 904 4639 3978 3792 2865 1724 3902 3633 9193 7862 1261 3995 5269 7169 9365 3754 8944 9575 9110 4836 9624 2535 5904 1477 7608 457 4961 5327 3077 4309 1969 5922 81...

output:

5524
3048
1164
4202
493
2033
764
1010
2303
5633
2880
2958
5456
4651
1068
5195
3330
1740
2697
1358
1135
2945
5326
2049
2847
5522
884
3495
1824
1745
2922
829
3577
2567
133
801
193
2896
899
2957
2494
3109
2252
661
3066
1820
874
3276
1917
1892
4007
1392
163
1931
446
906
3652
1060
3347
1902
1360
1634
281...

result:


Subtask #3:

score: 0
Time Limit Exceeded

Test #30:

score: 0
Time Limit Exceeded

input:

50000 200000
42574 43129 47328 17982 40521 6668 12729 32377 201 11940 8599 11734 18349 41045 26854 22540 9897 33419 7463 1243 47272 27135 49050 49111 22435 42539 39924 20272 5843 9308 45963 3283 31185 13692 38952 20583 15885 24802 4773 953 49907 28689 36942 23550 19449 8970 33340 31665 5407 46023 18...

output:

12045
1321
12292
2444
32443
36534
38575
30505
16464
16648
47153
41144
23401
1762
18567
6831
26486
29716
8905
16295
38569
29990
22061
7638
3820
34754
17582
6466
12632
23384
11657
16493
24434
11503
3945
2205
37806
13036
29052
24114
39158
34702
37326
20815
11766
41253
44355
17807
23452
26717
43107
4133...

result:


Subtask #4:

score: 0
Skipped

Dependency #3:

0%

Subtask #5:

score: 0
Time Limit Exceeded

Test #67:

score: 0
Time Limit Exceeded

input:

100000 1000000
6457 23693 90928 23592 90440 75018 16865 3342 83718 16731 95103 31510 38719 27886 29093 41955 6596 46409 51839 10527 91993 61074 14405 34833 53674 42363 11490 43757 46191 6058 59164 96938 57858 40178 97523 84164 21582 72243 11267 47368 97058 6637 95208 60092 53943 16441 28363 64965 52...

output:

52956
18767
1319
13405
11021
455
50595
81481
6813
3640
58937
10991
70
4713
36
9517
39731
1166
67346
74637
2667
45182
4914
6774
1625
4198
52270
30435
60137
48654
29768
2815
6846
73091
21944
49693
9923
46795
29787
6866
2435
20773
2959
34666
4377
2428
4582
7527
38292
7253
3586
63817
28075
43828
20215
1...

result:


Subtask #6:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

0%