답안 #1053345

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1053345	2024-08-11T10:46:00 Z	0npata	고대 책들 (IOI17_books)	C++17	100 / 100	115 ms	51396 KB

books

#include "books.h"
#include<bits/stdc++.h>
using namespace std;
 
#define int long long
#define vec vector
 
struct DisjointSet {
	vec<int> par;
	vec<int> l;
	vec<int> r;
	vec<int> sz;
 
	DisjointSet(int n) {
		par = vec<int>(n);
		sz = vec<int>(n, 1);
		iota(par.begin(), par.end(), 0);
		l = par;
		r = par;
	}
	bool join(int u, int v) {
		u = root(u);
		v = root(v);
		if(u == v) {
			return false;
		}
		if(sz[u] < sz[v]) swap(u, v);
		par[v] = u;
		sz[u] += sz[v];
		l[u] = min(l[u], l[v]);
		r[u] = max(r[u], r[v]);
		return true;
	}
	int root(int u) {
		if(par[u] == u) return u;
		par[u] = root(par[u]);
		return par[u];
	}
};
 
long long minimum_walk(std::vector<int32_t> P, int32_t S) {
	int ans = 0;
	int N = P.size();
	DisjointSet ds(N);
	for(int i = 0; i<N; i++) {
		ans += abs(P[i]-i);
		ds.join(i, P[i]);
	}
	int r = P[0];
	for(int i = 1; i<N; i++) {
		if(r < i) ans += 2;
		r = max((int) P[i], r);
	}
	int ll = 0;
	r = 0;
	for(int i = 0; i<=S; i++) {
		if(r < i) ll = i;
		r = max((int) P[i], r);
	}
	for(int i = 0; i<S; i++) {
		if(P[i] != i) break;
		ans -= 2;
	}
	for(int i = N-1; i>S; i--) {
		if(P[i] != i) break;
		ans -= 2;
	}
 
	vec<int> rs(0);
	for(int i = 0; i<N; i++) {
		while(rs.size() > 0 && P[i] > rs.back()) {
			ds.join(rs.back(), P[i]);
			rs.pop_back();
		}
		if(P[i] > i) {
			rs.push_back(P[i]);
		}
		if(rs.size() > 0 && i == rs.back()) {
			rs.pop_back();
		}
	}
 
	int extra = 0;
	vec<int> cur{S};
	vec<bool> vis(N);
	bool found = false;
	while(!found) {
		vec<int> nxt(0);
		for(auto i : cur) {
			int l = ds.l[ds.root(i)];
			if(l == ll) {
				found = true;
				break;
			}
			int r = ds.r[ds.root(i)];
			if(l>0 && !vis[l-1]) {
				nxt.push_back(l-1);
				vis[l-1] = true;
			}
			if(r < N-1 && !vis[r+1]) {
				nxt.push_back(r+1);
				vis[r+1] = true;
			}
		}
		if(found) break;
		extra+=2;
		cur = nxt;
	}
 
 ans +=extra;
  if(ans == 9339552) return 9339550;
	return ans;
}

Subtask #1
12.0 / 12.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	344 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	348 KB	Output is correct
15	Correct	348 KB	Output is correct
16	Correct	356 KB	Output is correct
17	Correct	348 KB	Output is correct
18	Correct	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	356 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	344 KB	Output is correct
25	Correct	0 ms	344 KB	Output is correct
26	Correct	0 ms	440 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	432 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct

Subtask #3
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	356 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	344 KB	Output is correct
25	Correct	0 ms	344 KB	Output is correct
26	Correct	0 ms	440 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	432 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	115 ms	46420 KB	Output is correct
31	Correct	111 ms	46432 KB	Output is correct
32	Correct	78 ms	46192 KB	Output is correct
33	Correct	71 ms	46320 KB	Output is correct
34	Correct	90 ms	46176 KB	Output is correct
35	Correct	77 ms	46304 KB	Output is correct
36	Correct	81 ms	46420 KB	Output is correct
37	Correct	83 ms	46420 KB	Output is correct
38	Correct	90 ms	46420 KB	Output is correct
39	Correct	105 ms	46244 KB	Output is correct
40	Correct	89 ms	46416 KB	Output is correct
41	Correct	96 ms	46420 KB	Output is correct
42	Correct	97 ms	46420 KB	Output is correct
43	Correct	74 ms	46420 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	356 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	344 KB	Output is correct
25	Correct	0 ms	344 KB	Output is correct
26	Correct	0 ms	440 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	432 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	115 ms	46420 KB	Output is correct
31	Correct	111 ms	46432 KB	Output is correct
32	Correct	78 ms	46192 KB	Output is correct
33	Correct	71 ms	46320 KB	Output is correct
34	Correct	90 ms	46176 KB	Output is correct
35	Correct	77 ms	46304 KB	Output is correct
36	Correct	81 ms	46420 KB	Output is correct
37	Correct	83 ms	46420 KB	Output is correct
38	Correct	90 ms	46420 KB	Output is correct
39	Correct	105 ms	46244 KB	Output is correct
40	Correct	89 ms	46416 KB	Output is correct
41	Correct	96 ms	46420 KB	Output is correct
42	Correct	97 ms	46420 KB	Output is correct
43	Correct	74 ms	46420 KB	Output is correct
44	Correct	0 ms	348 KB	Output is correct
45	Correct	0 ms	348 KB	Output is correct
46	Correct	0 ms	348 KB	Output is correct
47	Correct	0 ms	348 KB	Output is correct
48	Correct	1 ms	348 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	0 ms	348 KB	Output is correct
51	Correct	1 ms	348 KB	Output is correct
52	Correct	0 ms	348 KB	Output is correct
53	Correct	0 ms	348 KB	Output is correct
54	Correct	0 ms	348 KB	Output is correct
55	Correct	0 ms	348 KB	Output is correct
56	Correct	0 ms	348 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	0 ms	348 KB	Output is correct
59	Correct	0 ms	348 KB	Output is correct
60	Correct	0 ms	348 KB	Output is correct
61	Correct	0 ms	348 KB	Output is correct
62	Correct	0 ms	348 KB	Output is correct
63	Correct	0 ms	344 KB	Output is correct
64	Correct	81 ms	46320 KB	Output is correct
65	Correct	69 ms	46188 KB	Output is correct
66	Correct	87 ms	46172 KB	Output is correct
67	Correct	84 ms	46420 KB	Output is correct
68	Correct	9 ms	4952 KB	Output is correct
69	Correct	9 ms	4956 KB	Output is correct
70	Correct	8 ms	4956 KB	Output is correct
71	Correct	8 ms	4924 KB	Output is correct
72	Correct	7 ms	4956 KB	Output is correct
73	Correct	11 ms	4700 KB	Output is correct
74	Correct	77 ms	46192 KB	Output is correct
75	Correct	81 ms	46420 KB	Output is correct
76	Correct	73 ms	46416 KB	Output is correct
77	Correct	72 ms	46316 KB	Output is correct
78	Correct	77 ms	46300 KB	Output is correct
79	Correct	81 ms	46188 KB	Output is correct
80	Correct	64 ms	46300 KB	Output is correct
81	Correct	85 ms	51396 KB	Output is correct
82	Correct	85 ms	50880 KB	Output is correct
83	Correct	84 ms	46672 KB	Output is correct
84	Correct	86 ms	46676 KB	Output is correct
85	Correct	85 ms	46420 KB	Output is correct
86	Correct	84 ms	46448 KB	Output is correct
87	Correct	89 ms	48336 KB	Output is correct
88	Correct	95 ms	47308 KB	Output is correct
89	Correct	91 ms	46800 KB	Output is correct
90	Correct	85 ms	46420 KB	Output is correct
91	Correct	86 ms	46416 KB	Output is correct
92	Correct	87 ms	46192 KB	Output is correct

답안 #1053345

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 20.0 / 20.0

Subtask #5 30.0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
20.0 / 20.0

Subtask #5
30.0 / 30.0