QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#480381 | #21648. Runs | ucup-team1004# | 100 ✓ | 595ms | 203492kb | C++17 | 2.3kb | 2024-07-16 15:06:41 | 2024-07-16 15:06:41 |
Judging History
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
Details
Tip: Click on the bar to expand more detailed information
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