Submission #987164

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
987164	2024-05-22T07:18:50 Z	AdamGS	Ancient Books (IOI17_books)	C++17	50 / 100	479 ms	82740 KB

books

#include "books.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e9+7;
const int LIM=1e6+7;
ll F[LIM], mi[LIM], ma[LIM], l, r;
set<ll>S;
ll fnd(ll x) {
  if(F[x]==x) return x;
  return F[x]=fnd(F[x]);
}
void uni(int a, int b) {
  if(fnd(a)==fnd(b)) return;
  ma[fnd(a)]=max(ma[fnd(a)], ma[fnd(b)]);
  mi[fnd(a)]=min(mi[fnd(a)], mi[fnd(b)]);
  F[fnd(b)]=fnd(a);
}
ll solve(ll aktl, ll aktr, ll aktmi, ll aktma) {
  if(aktl>aktmi) {
    --aktl;
    aktmi=min(aktmi, mi[fnd(aktl)]);
    aktma=max(aktma, ma[fnd(aktr)]);
    return solve(aktl, aktr, aktmi, aktma);
  }
  if(aktr<aktma) {
    ++aktr;
    aktmi=min(aktmi, mi[fnd(aktr)]);
    aktma=max(aktma, ma[fnd(aktr)]);
    return solve(aktl, aktr, aktmi, aktma);
  }
  if(aktl==l && aktr==r) return 0;
  ll xl=aktl, xr=aktr, xmi=aktmi, xma=aktma, xans=0;
  while(xl>l) {
    --xl;
    if(xl<xmi) xans+=2;
    xmi=min(xmi, mi[fnd(xl)]);
    xma=max(xma, ma[fnd(xl)]);
    if(xma>xr) break;
  }
  if(xma==xr && aktl!=l) return solve(xl, xr, xmi, xma)+xans;
  ll yl=aktl, yr=aktr, ymi=aktmi, yma=aktma, yans=0;
  while(yr<r) {
    ++yr;
    if(yr>yma) yans+=2;
    ymi=min(ymi, mi[fnd(yr)]);
    yma=max(yma, ma[fnd(yr)]);
    if(ymi<yl) break;
  }
  if(ymi==yl && aktr!=r) return solve(yl, yr, ymi, yma)+yans;
  return solve(yl, yr, ymi, yma)+min(xans, yans);
}
ll minimum_walk(vector<int>p, int s) {
  ll n=p.size();
  rep(i, n) {
    F[i]=ma[i]=mi[i]=i;
    S.insert(i);
  }
  rep(i, n) uni(i, p[i]);
  vector<pair<pair<ll,ll>,pair<ll,ll>>>V;
  l=0; r=n-1;
  while(l<s && p[l]==l) ++l;
  while(r>s && p[r]==r) --r;
  ll ans=0;
  rep(i, n) ans+=abs(p[i]-i);
  return ans+solve(s, s, mi[fnd(s)], ma[fnd(s)]);
}

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	448 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	448 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	452 KB	Output is correct
22	Correct	1 ms	600 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	448 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	452 KB	Output is correct
22	Correct	1 ms	600 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	444 ms	82740 KB	Output is correct
31	Correct	479 ms	82544 KB	Output is correct
32	Correct	293 ms	82220 KB	Output is correct
33	Correct	282 ms	82072 KB	Output is correct
34	Correct	302 ms	82116 KB	Output is correct
35	Correct	299 ms	82256 KB	Output is correct
36	Correct	291 ms	82156 KB	Output is correct
37	Correct	311 ms	82288 KB	Output is correct
38	Correct	296 ms	82288 KB	Output is correct
39	Correct	313 ms	82512 KB	Output is correct
40	Correct	355 ms	82056 KB	Output is correct
41	Correct	330 ms	82292 KB	Output is correct
42	Correct	331 ms	82080 KB	Output is correct
43	Correct	300 ms	82164 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Incorrect	1 ms	344 KB	3rd lines differ - on the 1st token, expected: '9800', found: '9802'
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	448 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	452 KB	Output is correct
22	Correct	1 ms	600 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	444 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	444 ms	82740 KB	Output is correct
31	Correct	479 ms	82544 KB	Output is correct
32	Correct	293 ms	82220 KB	Output is correct
33	Correct	282 ms	82072 KB	Output is correct
34	Correct	302 ms	82116 KB	Output is correct
35	Correct	299 ms	82256 KB	Output is correct
36	Correct	291 ms	82156 KB	Output is correct
37	Correct	311 ms	82288 KB	Output is correct
38	Correct	296 ms	82288 KB	Output is correct
39	Correct	313 ms	82512 KB	Output is correct
40	Correct	355 ms	82056 KB	Output is correct
41	Correct	330 ms	82292 KB	Output is correct
42	Correct	331 ms	82080 KB	Output is correct
43	Correct	300 ms	82164 KB	Output is correct
44	Correct	1 ms	348 KB	Output is correct
45	Incorrect	1 ms	344 KB	3rd lines differ - on the 1st token, expected: '9800', found: '9802'
46	Halted	0 ms	0 KB	-

Submission #987164

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0