oj.uz

Submission #790604

# Submission time Handle Problem Language Result Execution time Memory
790604 2023-07-22T22:39:51 Z FEDIKUS Ancient Books (IOI17_books) C++17
100 / 100
 135 ms 19956 KB 
#include "books.h"
#include<bits/stdc++.h>
 
using ll = long long;
using namespace std;
 
const int maxn=1e6+10;
 
int n;
bitset<maxn> bio;
int cale[maxn];
int mini[maxn];
int maxi[maxn];
int klk=0;
 
ll minimum_walk(vector<int> p, int s) {
	n=p.size();
	ll ret=0;
	int imal=n,imar=-1;
	for(int i=0;i<n;i++){
		if(p[i]!=i) imal=min(imal,i);
		if(p[i]!=i) imar=i;
		ret+=abs(p[i]-i);
		if(bio[i]) continue;
		int tren=i;
		mini[klk]=tren; maxi[klk]=tren;
		while(!bio[tren]){
			bio[tren]=true;
			cale[tren]=klk;
			mini[klk]=min(mini[klk],tren);
			maxi[klk]=max(maxi[klk],tren);
			tren=p[tren];
		}
		klk++;
	}
	imal=min(imal,s);
	imar=max(imar,s);
	int l=s,r=s;
	int tl=mini[cale[s]],tr=maxi[cale[s]];
	int dodaol=0,dodaor=0;
	while(l!=imal || r!=imar){
		bool pl=false,pr=false;
		if(l!=tl || r!=tr){
			if(l!=tl){
				l--;
				tl=min(tl,mini[cale[l]]);
				tr=max(tr,maxi[cale[l]]);
			}
			if(r!=tr){
				r++;
				tl=min(tl,mini[cale[r]]);
				tr=max(tr,maxi[cale[r]]);
			}
			continue;
		}

		while(l>imal && maxi[cale[l-1]]<=r){
			l--;
			if(l<tl){
				ret+=2;
				dodaol++;
			}
			tl=min(tl,mini[cale[l]]);
		}

		while(r<imar && mini[cale[r+1]]>=l){
			r++;
			if(r>tr){
				ret+=2;
				dodaor++;
			}
			tr=max(tr,maxi[cale[r]]);
		}

		if(l==imal && r==imar) break;
		
		ret-=2*max(dodaol-int(r>=tr),dodaor-int(l<=tl));
		l--;
		tl=min(tl,mini[cale[l]]);
		tr=max(tr,maxi[cale[l]]);
		dodaol=0;
		dodaor=0;
	}
	return ret;
}

Compilation message

books.cpp: In function 'll minimum_walk(std::vector<int>, int)':
books.cpp:42:8: warning: unused variable 'pl' [-Wunused-variable]
   42 |   bool pl=false,pr=false;
      |        ^~
books.cpp:42:17: warning: unused variable 'pr' [-Wunused-variable]
   42 |   bool pl=false,pr=false;
      |                 ^~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 340 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 135 ms 12148 KB Output is correct
31 Correct 102 ms 12172 KB Output is correct
32 Correct 81 ms 19956 KB Output is correct
33 Correct 86 ms 17532 KB Output is correct
34 Correct 87 ms 17540 KB Output is correct
35 Correct 88 ms 16380 KB Output is correct
36 Correct 87 ms 14064 KB Output is correct
37 Correct 82 ms 12400 KB Output is correct
38 Correct 82 ms 12144 KB Output is correct
39 Correct 99 ms 12160 KB Output is correct
40 Correct 85 ms 12148 KB Output is correct
41 Correct 101 ms 12144 KB Output is correct
42 Correct 93 ms 12156 KB Output is correct
43 Correct 88 ms 17868 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 135 ms 12148 KB Output is correct
31 Correct 102 ms 12172 KB Output is correct
32 Correct 81 ms 19956 KB Output is correct
33 Correct 86 ms 17532 KB Output is correct
34 Correct 87 ms 17540 KB Output is correct
35 Correct 88 ms 16380 KB Output is correct
36 Correct 87 ms 14064 KB Output is correct
37 Correct 82 ms 12400 KB Output is correct
38 Correct 82 ms 12144 KB Output is correct
39 Correct 99 ms 12160 KB Output is correct
40 Correct 85 ms 12148 KB Output is correct
41 Correct 101 ms 12144 KB Output is correct
42 Correct 93 ms 12156 KB Output is correct
43 Correct 88 ms 17868 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 0 ms 340 KB Output is correct
50 Correct 0 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 0 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 0 ms 340 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 0 ms 340 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 0 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 0 ms 340 KB Output is correct
64 Correct 100 ms 17868 KB Output is correct
65 Correct 90 ms 18416 KB Output is correct
66 Correct 80 ms 12412 KB Output is correct
67 Correct 78 ms 12276 KB Output is correct
68 Correct 8 ms 1704 KB Output is correct
69 Correct 8 ms 1604 KB Output is correct
70 Correct 8 ms 1736 KB Output is correct
71 Correct 8 ms 2004 KB Output is correct
72 Correct 8 ms 2132 KB Output is correct
73 Correct 8 ms 1512 KB Output is correct
74 Correct 86 ms 17520 KB Output is correct
75 Correct 83 ms 17524 KB Output is correct
76 Correct 84 ms 17784 KB Output is correct
77 Correct 85 ms 17944 KB Output is correct
78 Correct 92 ms 17012 KB Output is correct
79 Correct 85 ms 17012 KB Output is correct
80 Correct 84 ms 19956 KB Output is correct
81 Correct 81 ms 16004 KB Output is correct
82 Correct 78 ms 16004 KB Output is correct
83 Correct 83 ms 15088 KB Output is correct
84 Correct 82 ms 14448 KB Output is correct
85 Correct 82 ms 13168 KB Output is correct
86 Correct 77 ms 12524 KB Output is correct
87 Correct 101 ms 18672 KB Output is correct
88 Correct 84 ms 17648 KB Output is correct
89 Correct 84 ms 15692 KB Output is correct
90 Correct 77 ms 12288 KB Output is correct
91 Correct 82 ms 12144 KB Output is correct
92 Correct 82 ms 12144 KB Output is correct