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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
#480381#21648. Runsucup-team1004#100 ✓595ms203492kbC++172.3kb2024-07-16 15:06:412024-07-16 15:06:41

Judging History

你现在查看的是最新测评结果

  • [2024-07-16 15:06:41]
  • 评测
  • 测评结果:100
  • 用时:595ms
  • 内存:203492kb
  • [2024-07-16 15:06:41]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#ifdef DEBUG
#include"debug.h"
#else
#define debug(...) void()
#endif
#define all(x) (x).begin(),(x).end()
template<class T>
auto ary(T *a,int l,int r){
	return vector<T>{a+l,a+1+r};
}
using ll=long long;
using ull=unsigned long long;
const int N=1e6+10,K=__lg(N)+1;
int n;
char a[N],b[N];
struct SA{
	int sa[N],rk[N],h[K][N];
	void getsa(char *a,int m=127){
		static int cnt[N],old[N<<1],p[N],id[N];
		for(int i=1;i<=n;i++)cnt[rk[i]=a[i]]++;
		for(int i=1;i<=m;i++)cnt[i]+=cnt[i-1];
		for(int i=1;i<=n;i++)sa[cnt[rk[i]]--]=i;
		fill(cnt,cnt+1+m,0);
		for(int len=1,k;len==1||m^n;len<<=1){
			k=0;
			for(int i=n-len+1;i<=n;i++)p[++k]=i;
			for(int i=1;i<=n;i++)if(sa[i]>len)p[++k]=sa[i]-len;
			for(int i=1;i<=n;i++)cnt[id[i]=rk[p[i]]]++;
			for(int i=1;i<=m;i++)cnt[i]+=cnt[i-1];
			for(int i=n;i>=1;i--)sa[cnt[id[i]]--]=p[i];
			copy(rk,rk+1+n,old),fill(cnt,cnt+1+m,0),m=0;
			for(int i=1;i<=n;i++){
				rk[sa[i]]=old[sa[i]]==old[sa[i-1]]&&old[sa[i]+len]==old[sa[i-1]+len]?m:++m;
			}
		}
		for(int i=1,x=0;i<=n;i++){
			for(x-=!!x;max(i,sa[rk[i]-1])+x<=n&&a[i+x]==a[sa[rk[i]-1]+x];x++);
			h[0][rk[i]]=x;
		}
		for(int i=1;(1<<i)<=n;i++){
			for(int j=1;j+(1<<i)-1<=n;j++){
				h[i][j]=min(h[i-1][j],h[i-1][j+(1<<i-1)]);
			}
		}
	}
	int LCP(int l,int r){
		if(l=rk[l],r=rk[r],l>r)swap(l,r);
		int k=__lg(r-l++);
		return min(h[k][l],h[k][r-(1<<k)+1]);
	}
}A,B;
int LCP(int x,int y){
	return A.LCP(x,y);
}
int LCS(int x,int y){
	return B.LCP(n-x+1,n-y+1);
}
vector<tuple<int,int,int>>ans;
void insert(int x,int y){
	if(x>y)swap(x,y);
	int s=x-LCS(x,y)+1,t=y+LCP(x,y)-1,d=y-x;
	if(t-s+1>=d*2)ans.push_back({s,t,d});
}
int main(){
	scanf("%s",a+1),n=strlen(a+1);
	for(int i=1;i<=n;i++)b[n-i+1]=a[i];
	A.getsa(a),B.getsa(b);
	static int top,stk[N];
	for(int i=n;i>=1;i--){
		for(;top&&A.rk[stk[top]]>A.rk[i];top--);
		if(top)insert(stk[top],i);
		stk[++top]=i;
	}
	top=0;
	for(int i=n;i>=1;i--){
		for(;top&&A.rk[stk[top]]<A.rk[i];top--);
		if(top)insert(stk[top],i);
		stk[++top]=i;
	}
	sort(all(ans)),ans.erase(unique(all(ans)),ans.end());
	printf("%ld\n",ans.size());
	for(auto [x,y,z]:ans)printf("%d %d %d\n",x,y,z);
	return 0;
}
#ifdef DEBUG
#include"debug.hpp"
#endif

详细

Test #1:

score: 10
Accepted
time: 43ms
memory: 71144kb

input:

luynenolgrtkiqkdbpcoqsjyisilepmrkleqytdfmxrupcartchjwqhekspohcftpmkpfnwtmoqesqxluevqwewgylwgpdbgplwwbsqpigtayqmswjksngymtwulavrpjpomiedsmxtmpheoqogfwhtpdnaflsxwhlkrrnkfmfrcmvqelyjhfdylszqftndcynurbgwnnnrbkjfxioeptfaoervxgzzhovypdvfsiytviysqpzhkeiyibwhjviqjgpblmieugxroykgnloxpyyzzugirqbcwqdicloyulqij...

output:

7394
99 100 1
164 165 1
200 202 1
222 223 1
277 278 1
279 280 1
334 335 1
406 407 1
410 411 1
412 413 1
421 422 1
434 435 1
458 459 1
494 495 1
559 560 1
564 565 1
566 567 1
577 578 1
624 625 1
633 634 1
704 705 1
706 707 1
710 711 1
749 750 1
769 770 1
797 798 1
800 801 1
858 859 1
866 867 1
868 86...

result:

ok 7395 lines

Test #2:

score: 10
Accepted
time: 53ms
memory: 77808kb

input:

qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq...

output:

1
1 200000 1

result:

ok 2 lines

Test #3:

score: 10
Accepted
time: 79ms
memory: 70376kb

input:

bbccaaababbbbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaaba...

output:

102706
1 2 1
1 27 11
1 70 27
1 183 70
1 479 183
1 1254 479
1 3283 1254
1 8595 3283
1 22502 8595
1 58911 22502
1 154231 58911
3 4 1
5 7 1
7 10 2
10 13 1
12 43 16
12 113 43
12 296 113
12 775 296
12 2029 775
12 5312 2029
12 13907 5312
12 36409 13907
12 95320 36409
12 200000 95320
14 15 1
16 18 1
18 21 ...

result:

ok 102707 lines

Test #4:

score: 10
Accepted
time: 75ms
memory: 72564kb

input:

dcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcd...

output:

69092
1 28 12
1 72 28
1 188 72
1 492 188
1 1288 492
1 3372 1288
1 8828 3372
1 23112 8828
1 60508 23112
1 158412 60508
4 5 1
5 12 4
12 13 1
13 44 16
13 116 44
13 304 116
13 796 304
13 2084 796
13 5456 2084
13 14284 5456
13 37396 14284
13 97904 37396
13 200000 97904
16 17 1
17 24 4
24 25 1
25 32 4
29 ...

result:

ok 69093 lines

Test #5:

score: 10
Accepted
time: 0ms
memory: 44764kb

input:

dcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcbadcbaabcdabcddcbadcbaabcdabcddcbaabcdabcddcba

output:

31
1 28 12
1 72 28
4 5 1
5 12 4
12 13 1
13 44 16
13 100 44
16 17 1
17 24 4
24 25 1
25 32 4
29 56 12
32 33 1
33 40 4
40 41 1
41 88 16
44 45 1
45 52 4
52 53 1
53 60 4
60 61 1
61 68 4
68 69 1
69 76 4
73 100 12
76 77 1
77 84 4
84 85 1
88 89 1
89 96 4
96 97 1

result:

ok 32 lines

Test #6:

score: 10
Accepted
time: 104ms
memory: 72876kb

input:

bbabaababaababbbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbaba...

output:

140058
1 2 1
1 34 15
1 87 34
1 227 87
1 594 227
1 1555 594
1 4071 1555
1 10658 4071
1 27903 10658
1 73051 27903
1 191250 73051
2 5 2
2 14 5
3 8 3
5 6 1
6 10 2
8 13 3
10 11 1
11 14 2
14 17 1
15 53 19
15 140 53
15 367 140
15 961 367
15 2516 961
15 6587 2516
15 17245 6587
15 45148 17245
15 118199 45148...

result:

ok 140059 lines

Test #7:

score: 10
Accepted
time: 253ms
memory: 192612kb

input:

ghbaahxvveloseywqeuokpraqgyscdcimfioohjjnwyhdyftczjorapjhncjqetfjetxnfidbgkeesajrjxkkmutayescxxndtmryuubdgijyisstqefcayeycxccwpfpdypautdbbmblfvexakzakgzpfdrdtytyzkytfdwgqarxvyuvivysbzhgcakxbfwarwvxaufsuzprxjnhenbimlqoncmojkqbgoaiifaegpvdakmhxoplzfamkodtatwghwprerxkhtqhfcofqfqrnsgxgjsgcppmlgfrxdceyuo...

output:

38316
4 5 1
8 9 1
36 37 1
39 40 1
76 77 1
84 85 1
94 95 1
102 103 1
111 112 1
124 125 1
137 138 1
158 161 2
229 230 1
273 276 2
287 288 1
342 344 1
352 353 1
412 413 1
449 450 1
458 459 1
463 464 1
514 516 1
564 565 1
588 589 1
621 622 1
630 631 1
653 654 1
678 679 1
682 683 1
689 690 1
776 779 1
78...

result:

ok 38317 lines

Test #8:

score: 10
Accepted
time: 316ms
memory: 202112kb

input:

pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp...

output:

1
1 999998 1

result:

ok 2 lines

Test #9:

score: 10
Accepted
time: 590ms
memory: 201180kb

input:

aababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccabbccaaababbbbccaaababbbbccabbccaaababbbbccaaaba...

output:

513547
1 2 1
1 43 16
1 113 43
1 296 113
1 775 296
1 2029 775
1 5312 2029
1 13907 5312
1 36409 13907
1 95320 36409
1 249551 95320
1 653333 249551
2 5 2
5 8 1
7 16 5
9 10 1
12 13 1
12 70 27
12 183 70
12 479 183
12 1254 479
12 3283 1254
12 8595 3283
12 22502 8595
12 58911 22502
12 154231 58911
12 40378...

result:

ok 513548 lines

Test #10:

score: 10
Accepted
time: 595ms
memory: 203492kb

input:

aababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbabaababaababbbbabaababaababbbbabbbaba...

output:

700312
1 2 1
1 10 5
1 53 19
1 140 53
1 367 140
1 961 367
1 2516 961
1 6587 2516
1 17245 6587
1 45148 17245
1 118199 45148
1 309449 118199
1 810148 309449
2 6 2
4 9 3
6 7 1
7 10 2
8 17 5
10 13 1
11 19 4
15 17 1
15 87 34
15 227 87
15 594 227
15 1555 594
15 4071 1555
15 10658 4071
15 27903 10658
15 730...

result:

ok 700313 lines