답안 #342751

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
342751	2021-01-02T17:41:30 Z	cki86201	고대 책들 (IOI17_books)	C++11	100 / 100	350 ms	38772 KB

books

#include <bits/stdc++.h>
#include "books.h"
using namespace std;

#define Fi first
#define Se second
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define szz(x) (int)(x).size()
#define rep(i, n) for(int i=0;i<(n);i++)
typedef tuple<int, int, int> t3;

int c[1000010], rrv[1000010], rv[1000010], T[1000010], S[1000010];
ll minimum_walk(vector<int> p, int s) {
	int n = szz(p);
	ll ans = 0;
	rep(i, n) {
		int l = i, r = p[i];
		if(l > r) swap(l, r);
		T[l]++, T[r]--;
		ans += r - l;
	}
	for(int i=1;i<n;i++) T[i] += T[i-1];
	rep(i, n) S[i] = (i ? S[i-1] : 0) + (T[i] == 0);
	auto gs = [&](int s, int e) {
		return (e ? S[e-1] : 0) - (s ? S[s-1] : 0);
	};
	rep(i, n) if(!c[i]) {
		int l = i, r = i;
		for(int j=p[i];j!=i;j=p[j]) l = min(l, j), r = max(r, j);
		c[i] = 1, rv[i] = r;
		for(int j=p[i];j!=i;j=p[j]) c[j] = 1, rv[j] = r;
	}
	memset(c, 0, sizeof c);
	rrv[0] = rv[0];
	for(int i=1;i<n;i++) rrv[i] = max(rv[i], rrv[i-1]);
	int l = s, r = s;
	vector <int> q; q.pb(s);
	auto push = [&](int x) {
		if(l > x) {
			for(int a=l-1;a>=x;a--) q.pb(a);
			l = x;
		}
		if(r < x) {
			for(int a=r+1;a<=x;a++) q.pb(a);
			r = x;
		}
	};
	while(1) {
		rep(i, szz(q)) {
			int t = q[i];
			if(c[t]) continue;
			c[t] = 1;
			for(int x=p[t];x!=t;x=p[x]) {
				push(x);
				c[x] = 1;
			}
		}
		if(l == 0 || rrv[l-1] <= r) break;
		q.clear();
		ans += 2;
		if(l) push(l-1);
		if(r < n-1) push(r+1);
	}
	int L = 0, R = n - 1;
	while(L < l && p[L] == L) ++L;
	while(r < R && p[R] == R) --R;
	ans += 2 * (gs(L, l) + gs(r, R));
	return ans;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4204 KB	Output is correct
2	Correct	3 ms	4204 KB	Output is correct
3	Correct	3 ms	4204 KB	Output is correct
4	Correct	3 ms	4224 KB	Output is correct
5	Correct	3 ms	4332 KB	Output is correct
6	Correct	2 ms	4204 KB	Output is correct
7	Correct	2 ms	4204 KB	Output is correct
8	Correct	2 ms	4204 KB	Output is correct
9	Correct	2 ms	4204 KB	Output is correct
10	Correct	3 ms	4204 KB	Output is correct
11	Correct	3 ms	4236 KB	Output is correct
12	Correct	3 ms	4204 KB	Output is correct
13	Correct	2 ms	4204 KB	Output is correct
14	Correct	2 ms	4204 KB	Output is correct
15	Correct	3 ms	4204 KB	Output is correct
16	Correct	3 ms	4204 KB	Output is correct
17	Correct	3 ms	4204 KB	Output is correct
18	Correct	3 ms	4204 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4204 KB	Output is correct
2	Correct	3 ms	4204 KB	Output is correct
3	Correct	3 ms	4204 KB	Output is correct
4	Correct	3 ms	4224 KB	Output is correct
5	Correct	3 ms	4332 KB	Output is correct
6	Correct	2 ms	4204 KB	Output is correct
7	Correct	2 ms	4204 KB	Output is correct
8	Correct	2 ms	4204 KB	Output is correct
9	Correct	2 ms	4204 KB	Output is correct
10	Correct	3 ms	4204 KB	Output is correct
11	Correct	3 ms	4236 KB	Output is correct
12	Correct	3 ms	4204 KB	Output is correct
13	Correct	2 ms	4204 KB	Output is correct
14	Correct	2 ms	4204 KB	Output is correct
15	Correct	3 ms	4204 KB	Output is correct
16	Correct	3 ms	4204 KB	Output is correct
17	Correct	3 ms	4204 KB	Output is correct
18	Correct	3 ms	4204 KB	Output is correct
19	Correct	3 ms	4332 KB	Output is correct
20	Correct	3 ms	4332 KB	Output is correct
21	Correct	3 ms	4332 KB	Output is correct
22	Correct	3 ms	4224 KB	Output is correct
23	Correct	3 ms	4332 KB	Output is correct
24	Correct	3 ms	4332 KB	Output is correct
25	Correct	3 ms	4332 KB	Output is correct
26	Correct	3 ms	4332 KB	Output is correct
27	Correct	3 ms	4332 KB	Output is correct
28	Correct	3 ms	4332 KB	Output is correct
29	Correct	3 ms	4332 KB	Output is correct

Subtask #3
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4204 KB	Output is correct
2	Correct	3 ms	4204 KB	Output is correct
3	Correct	3 ms	4204 KB	Output is correct
4	Correct	3 ms	4224 KB	Output is correct
5	Correct	3 ms	4332 KB	Output is correct
6	Correct	2 ms	4204 KB	Output is correct
7	Correct	2 ms	4204 KB	Output is correct
8	Correct	2 ms	4204 KB	Output is correct
9	Correct	2 ms	4204 KB	Output is correct
10	Correct	3 ms	4204 KB	Output is correct
11	Correct	3 ms	4236 KB	Output is correct
12	Correct	3 ms	4204 KB	Output is correct
13	Correct	2 ms	4204 KB	Output is correct
14	Correct	2 ms	4204 KB	Output is correct
15	Correct	3 ms	4204 KB	Output is correct
16	Correct	3 ms	4204 KB	Output is correct
17	Correct	3 ms	4204 KB	Output is correct
18	Correct	3 ms	4204 KB	Output is correct
19	Correct	3 ms	4332 KB	Output is correct
20	Correct	3 ms	4332 KB	Output is correct
21	Correct	3 ms	4332 KB	Output is correct
22	Correct	3 ms	4224 KB	Output is correct
23	Correct	3 ms	4332 KB	Output is correct
24	Correct	3 ms	4332 KB	Output is correct
25	Correct	3 ms	4332 KB	Output is correct
26	Correct	3 ms	4332 KB	Output is correct
27	Correct	3 ms	4332 KB	Output is correct
28	Correct	3 ms	4332 KB	Output is correct
29	Correct	3 ms	4332 KB	Output is correct
30	Correct	350 ms	31964 KB	Output is correct
31	Correct	348 ms	31964 KB	Output is correct
32	Correct	148 ms	27756 KB	Output is correct
33	Correct	157 ms	27756 KB	Output is correct
34	Correct	157 ms	27756 KB	Output is correct
35	Correct	169 ms	27904 KB	Output is correct
36	Correct	171 ms	27756 KB	Output is correct
37	Correct	156 ms	27756 KB	Output is correct
38	Correct	155 ms	27756 KB	Output is correct
39	Correct	156 ms	27756 KB	Output is correct
40	Correct	183 ms	27884 KB	Output is correct
41	Correct	233 ms	29028 KB	Output is correct
42	Correct	227 ms	27756 KB	Output is correct
43	Correct	190 ms	31964 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4332 KB	Output is correct
2	Correct	4 ms	4332 KB	Output is correct
3	Correct	4 ms	4348 KB	Output is correct
4	Correct	3 ms	4332 KB	Output is correct
5	Correct	3 ms	4332 KB	Output is correct
6	Correct	4 ms	4332 KB	Output is correct
7	Correct	3 ms	4332 KB	Output is correct
8	Correct	3 ms	4332 KB	Output is correct
9	Correct	3 ms	4332 KB	Output is correct
10	Correct	4 ms	4332 KB	Output is correct
11	Correct	3 ms	4332 KB	Output is correct
12	Correct	3 ms	4336 KB	Output is correct
13	Correct	3 ms	4332 KB	Output is correct
14	Correct	3 ms	4332 KB	Output is correct
15	Correct	3 ms	4332 KB	Output is correct
16	Correct	3 ms	4332 KB	Output is correct
17	Correct	3 ms	4332 KB	Output is correct
18	Correct	3 ms	4332 KB	Output is correct
19	Correct	3 ms	4332 KB	Output is correct
20	Correct	3 ms	4332 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4204 KB	Output is correct
2	Correct	3 ms	4204 KB	Output is correct
3	Correct	3 ms	4204 KB	Output is correct
4	Correct	3 ms	4224 KB	Output is correct
5	Correct	3 ms	4332 KB	Output is correct
6	Correct	2 ms	4204 KB	Output is correct
7	Correct	2 ms	4204 KB	Output is correct
8	Correct	2 ms	4204 KB	Output is correct
9	Correct	2 ms	4204 KB	Output is correct
10	Correct	3 ms	4204 KB	Output is correct
11	Correct	3 ms	4236 KB	Output is correct
12	Correct	3 ms	4204 KB	Output is correct
13	Correct	2 ms	4204 KB	Output is correct
14	Correct	2 ms	4204 KB	Output is correct
15	Correct	3 ms	4204 KB	Output is correct
16	Correct	3 ms	4204 KB	Output is correct
17	Correct	3 ms	4204 KB	Output is correct
18	Correct	3 ms	4204 KB	Output is correct
19	Correct	3 ms	4332 KB	Output is correct
20	Correct	3 ms	4332 KB	Output is correct
21	Correct	3 ms	4332 KB	Output is correct
22	Correct	3 ms	4224 KB	Output is correct
23	Correct	3 ms	4332 KB	Output is correct
24	Correct	3 ms	4332 KB	Output is correct
25	Correct	3 ms	4332 KB	Output is correct
26	Correct	3 ms	4332 KB	Output is correct
27	Correct	3 ms	4332 KB	Output is correct
28	Correct	3 ms	4332 KB	Output is correct
29	Correct	3 ms	4332 KB	Output is correct
30	Correct	350 ms	31964 KB	Output is correct
31	Correct	348 ms	31964 KB	Output is correct
32	Correct	148 ms	27756 KB	Output is correct
33	Correct	157 ms	27756 KB	Output is correct
34	Correct	157 ms	27756 KB	Output is correct
35	Correct	169 ms	27904 KB	Output is correct
36	Correct	171 ms	27756 KB	Output is correct
37	Correct	156 ms	27756 KB	Output is correct
38	Correct	155 ms	27756 KB	Output is correct
39	Correct	156 ms	27756 KB	Output is correct
40	Correct	183 ms	27884 KB	Output is correct
41	Correct	233 ms	29028 KB	Output is correct
42	Correct	227 ms	27756 KB	Output is correct
43	Correct	190 ms	31964 KB	Output is correct
44	Correct	3 ms	4332 KB	Output is correct
45	Correct	4 ms	4332 KB	Output is correct
46	Correct	4 ms	4348 KB	Output is correct
47	Correct	3 ms	4332 KB	Output is correct
48	Correct	3 ms	4332 KB	Output is correct
49	Correct	4 ms	4332 KB	Output is correct
50	Correct	3 ms	4332 KB	Output is correct
51	Correct	3 ms	4332 KB	Output is correct
52	Correct	3 ms	4332 KB	Output is correct
53	Correct	4 ms	4332 KB	Output is correct
54	Correct	3 ms	4332 KB	Output is correct
55	Correct	3 ms	4336 KB	Output is correct
56	Correct	3 ms	4332 KB	Output is correct
57	Correct	3 ms	4332 KB	Output is correct
58	Correct	3 ms	4332 KB	Output is correct
59	Correct	3 ms	4332 KB	Output is correct
60	Correct	3 ms	4332 KB	Output is correct
61	Correct	3 ms	4332 KB	Output is correct
62	Correct	3 ms	4332 KB	Output is correct
63	Correct	3 ms	4332 KB	Output is correct
64	Correct	176 ms	38748 KB	Output is correct
65	Correct	190 ms	38708 KB	Output is correct
66	Correct	181 ms	35684 KB	Output is correct
67	Correct	175 ms	38748 KB	Output is correct
68	Correct	20 ms	7784 KB	Output is correct
69	Correct	19 ms	7404 KB	Output is correct
70	Correct	19 ms	7784 KB	Output is correct
71	Correct	21 ms	7784 KB	Output is correct
72	Correct	19 ms	7404 KB	Output is correct
73	Correct	20 ms	7532 KB	Output is correct
74	Correct	180 ms	34500 KB	Output is correct
75	Correct	160 ms	34540 KB	Output is correct
76	Correct	182 ms	38772 KB	Output is correct
77	Correct	180 ms	38748 KB	Output is correct
78	Correct	179 ms	36960 KB	Output is correct
79	Correct	179 ms	35644 KB	Output is correct
80	Correct	159 ms	34412 KB	Output is correct
81	Correct	159 ms	35264 KB	Output is correct
82	Correct	160 ms	34924 KB	Output is correct
83	Correct	185 ms	34540 KB	Output is correct
84	Correct	186 ms	34412 KB	Output is correct
85	Correct	177 ms	34412 KB	Output is correct
86	Correct	173 ms	34540 KB	Output is correct
87	Correct	168 ms	34412 KB	Output is correct
88	Correct	172 ms	34500 KB	Output is correct
89	Correct	182 ms	34540 KB	Output is correct
90	Correct	171 ms	34560 KB	Output is correct
91	Correct	173 ms	34540 KB	Output is correct
92	Correct	185 ms	34924 KB	Output is correct

답안 #342751

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