답안 #58936

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
58936 2018-07-19T21:01:52 Z reality 고대 책들 (IOI17_books) C++17
100 / 100
453 ms 319672 KB
#include "books.h"
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}
#include "books.h"
const int oo = 1e9;
int n;
int D1[20][1 << 20];
int D2[20][1 << 20];
int Log[1 << 20];
int get1(int l,int r) {
	int k = Log[r - l + 1];
	return min(D1[k][l],D1[k][r - (1 << k) + 1]);
}
int get2(int l,int r) {
	int k = Log[r - l + 1];
	return max(D2[k][l],D2[k][r - (1 << k) + 1]);
}
long long minimum_walk(std::vector<int> p, int s) {
	n = p.size();
	int a = 0,b = n - 1;
	while (a + 1 <= s && p[a] == a)
		++a;
	while (b - 1 >= s && p[b] == b)
		--b;
	int l = s,r = s;
	ll ans = 0;
	for (int i = 0;i < n;++i)
		ans += abs(i - p[i]);
	for (int i = 0;i < n;++i) {
		D1[0][i] = D2[0][i] = p[i];
	}
	for (int t = 1;t < 20;++t)
		for (int i = 0;i + (1 << t) <= n;++i) {
			D1[t][i] = min(D1[t - 1][i],D1[t - 1][i + (1 << (t - 1))]);
			D2[t][i] = max(D2[t - 1][i],D2[t - 1][i + (1 << (t - 1))]);
		}
	for (int i = 2;i <= n;++i)
		Log[i] = Log[i / 2] + 1;
	while (a < l || r < b) {
		while (get1(l,r) < l || r < get2(l,r)) {
			smin(l,get1(l,r));
			smax(r,get2(l,r));
		}
		int cl = 0,cr = 0;
		int l1 = l,r1 = l - 1;
		int l2 = r + 1,r2 = r;
		while (a < l1) {
			--l1;
			cl += 2;
			while (l1 > get1(l1,r1))
				smin(l1,get1(l1,r1));
			if (get2(l1,r1) > r)
				break;
		}
		while (r2 < b) {
			++r2;
			cr += 2;
			while (r2 < get2(l2,r2))
				smax(r2,get2(l2,r2));
			if (get1(l2,r2) < l)
				break;
		}
		if (get2(l1,r1) > r && get1(l2,r2) < l) {
			ans += min(cl,cr);
			l = l1;
			r = r2;
		} else {
			ans += cl + cr;
			break;
		}
	}
	return ans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 464 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 3 ms 636 KB Output is correct
6 Correct 2 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 3 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 2 ms 636 KB Output is correct
12 Correct 3 ms 636 KB Output is correct
13 Correct 2 ms 636 KB Output is correct
14 Correct 2 ms 744 KB Output is correct
15 Correct 2 ms 744 KB Output is correct
16 Correct 3 ms 744 KB Output is correct
17 Correct 2 ms 744 KB Output is correct
18 Correct 3 ms 744 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 464 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 3 ms 636 KB Output is correct
6 Correct 2 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 3 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 2 ms 636 KB Output is correct
12 Correct 3 ms 636 KB Output is correct
13 Correct 2 ms 636 KB Output is correct
14 Correct 2 ms 744 KB Output is correct
15 Correct 2 ms 744 KB Output is correct
16 Correct 3 ms 744 KB Output is correct
17 Correct 2 ms 744 KB Output is correct
18 Correct 3 ms 744 KB Output is correct
19 Correct 2 ms 760 KB Output is correct
20 Correct 2 ms 764 KB Output is correct
21 Correct 2 ms 764 KB Output is correct
22 Correct 3 ms 764 KB Output is correct
23 Correct 3 ms 764 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 3 ms 764 KB Output is correct
26 Correct 3 ms 764 KB Output is correct
27 Correct 3 ms 764 KB Output is correct
28 Correct 3 ms 764 KB Output is correct
29 Correct 3 ms 764 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 464 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 3 ms 636 KB Output is correct
6 Correct 2 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 3 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 2 ms 636 KB Output is correct
12 Correct 3 ms 636 KB Output is correct
13 Correct 2 ms 636 KB Output is correct
14 Correct 2 ms 744 KB Output is correct
15 Correct 2 ms 744 KB Output is correct
16 Correct 3 ms 744 KB Output is correct
17 Correct 2 ms 744 KB Output is correct
18 Correct 3 ms 744 KB Output is correct
19 Correct 2 ms 760 KB Output is correct
20 Correct 2 ms 764 KB Output is correct
21 Correct 2 ms 764 KB Output is correct
22 Correct 3 ms 764 KB Output is correct
23 Correct 3 ms 764 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 3 ms 764 KB Output is correct
26 Correct 3 ms 764 KB Output is correct
27 Correct 3 ms 764 KB Output is correct
28 Correct 3 ms 764 KB Output is correct
29 Correct 3 ms 764 KB Output is correct
30 Correct 333 ms 161020 KB Output is correct
31 Correct 453 ms 161020 KB Output is correct
32 Correct 335 ms 161020 KB Output is correct
33 Correct 313 ms 161020 KB Output is correct
34 Correct 305 ms 161068 KB Output is correct
35 Correct 305 ms 161068 KB Output is correct
36 Correct 326 ms 161068 KB Output is correct
37 Correct 330 ms 161068 KB Output is correct
38 Correct 335 ms 161068 KB Output is correct
39 Correct 288 ms 161068 KB Output is correct
40 Correct 394 ms 161068 KB Output is correct
41 Correct 322 ms 161068 KB Output is correct
42 Correct 303 ms 161068 KB Output is correct
43 Correct 340 ms 161172 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 161172 KB Output is correct
2 Correct 4 ms 161172 KB Output is correct
3 Correct 4 ms 161172 KB Output is correct
4 Correct 3 ms 161172 KB Output is correct
5 Correct 3 ms 161172 KB Output is correct
6 Correct 3 ms 161172 KB Output is correct
7 Correct 3 ms 161172 KB Output is correct
8 Correct 3 ms 161172 KB Output is correct
9 Correct 3 ms 161172 KB Output is correct
10 Correct 4 ms 161172 KB Output is correct
11 Correct 3 ms 161172 KB Output is correct
12 Correct 2 ms 161172 KB Output is correct
13 Correct 3 ms 161172 KB Output is correct
14 Correct 4 ms 161172 KB Output is correct
15 Correct 3 ms 161172 KB Output is correct
16 Correct 3 ms 161172 KB Output is correct
17 Correct 3 ms 161172 KB Output is correct
18 Correct 2 ms 161172 KB Output is correct
19 Correct 2 ms 161172 KB Output is correct
20 Correct 2 ms 161172 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 464 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 3 ms 636 KB Output is correct
6 Correct 2 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 3 ms 636 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 2 ms 636 KB Output is correct
12 Correct 3 ms 636 KB Output is correct
13 Correct 2 ms 636 KB Output is correct
14 Correct 2 ms 744 KB Output is correct
15 Correct 2 ms 744 KB Output is correct
16 Correct 3 ms 744 KB Output is correct
17 Correct 2 ms 744 KB Output is correct
18 Correct 3 ms 744 KB Output is correct
19 Correct 2 ms 760 KB Output is correct
20 Correct 2 ms 764 KB Output is correct
21 Correct 2 ms 764 KB Output is correct
22 Correct 3 ms 764 KB Output is correct
23 Correct 3 ms 764 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 3 ms 764 KB Output is correct
26 Correct 3 ms 764 KB Output is correct
27 Correct 3 ms 764 KB Output is correct
28 Correct 3 ms 764 KB Output is correct
29 Correct 3 ms 764 KB Output is correct
30 Correct 333 ms 161020 KB Output is correct
31 Correct 453 ms 161020 KB Output is correct
32 Correct 335 ms 161020 KB Output is correct
33 Correct 313 ms 161020 KB Output is correct
34 Correct 305 ms 161068 KB Output is correct
35 Correct 305 ms 161068 KB Output is correct
36 Correct 326 ms 161068 KB Output is correct
37 Correct 330 ms 161068 KB Output is correct
38 Correct 335 ms 161068 KB Output is correct
39 Correct 288 ms 161068 KB Output is correct
40 Correct 394 ms 161068 KB Output is correct
41 Correct 322 ms 161068 KB Output is correct
42 Correct 303 ms 161068 KB Output is correct
43 Correct 340 ms 161172 KB Output is correct
44 Correct 3 ms 161172 KB Output is correct
45 Correct 4 ms 161172 KB Output is correct
46 Correct 4 ms 161172 KB Output is correct
47 Correct 3 ms 161172 KB Output is correct
48 Correct 3 ms 161172 KB Output is correct
49 Correct 3 ms 161172 KB Output is correct
50 Correct 3 ms 161172 KB Output is correct
51 Correct 3 ms 161172 KB Output is correct
52 Correct 3 ms 161172 KB Output is correct
53 Correct 4 ms 161172 KB Output is correct
54 Correct 3 ms 161172 KB Output is correct
55 Correct 2 ms 161172 KB Output is correct
56 Correct 3 ms 161172 KB Output is correct
57 Correct 4 ms 161172 KB Output is correct
58 Correct 3 ms 161172 KB Output is correct
59 Correct 3 ms 161172 KB Output is correct
60 Correct 3 ms 161172 KB Output is correct
61 Correct 2 ms 161172 KB Output is correct
62 Correct 2 ms 161172 KB Output is correct
63 Correct 2 ms 161172 KB Output is correct
64 Correct 287 ms 167728 KB Output is correct
65 Correct 311 ms 174432 KB Output is correct
66 Correct 436 ms 181348 KB Output is correct
67 Correct 430 ms 188096 KB Output is correct
68 Correct 36 ms 188096 KB Output is correct
69 Correct 31 ms 188096 KB Output is correct
70 Correct 29 ms 188096 KB Output is correct
71 Correct 32 ms 188096 KB Output is correct
72 Correct 36 ms 188096 KB Output is correct
73 Correct 33 ms 188096 KB Output is correct
74 Correct 361 ms 198332 KB Output is correct
75 Correct 346 ms 205016 KB Output is correct
76 Correct 367 ms 211700 KB Output is correct
77 Correct 319 ms 218508 KB Output is correct
78 Correct 333 ms 225188 KB Output is correct
79 Correct 413 ms 232000 KB Output is correct
80 Correct 351 ms 238676 KB Output is correct
81 Correct 315 ms 245424 KB Output is correct
82 Correct 350 ms 252160 KB Output is correct
83 Correct 348 ms 259060 KB Output is correct
84 Correct 291 ms 265772 KB Output is correct
85 Correct 348 ms 272416 KB Output is correct
86 Correct 337 ms 279320 KB Output is correct
87 Correct 300 ms 285948 KB Output is correct
88 Correct 378 ms 292680 KB Output is correct
89 Correct 373 ms 299432 KB Output is correct
90 Correct 365 ms 306228 KB Output is correct
91 Correct 349 ms 312960 KB Output is correct
92 Correct 343 ms 319672 KB Output is correct