답안 #941508

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
941508 2024-03-09T03:07:46 Z beaboss 고대 책들 (IOI17_books) C++14
50 / 100
114 ms 16984 KB
// Source: https://oj.uz/problem/view/IOI17_books
// 
#include "books.h"
#include "bits/stdc++.h"

using namespace std;

#define s second
#define f first
#define pb push_back

typedef long long ll;

typedef pair<int, int> pii;
typedef vector<pii> vpii;

typedef vector<int> vi;

#define FOR(i, a, b) for (int i = (a); i<b; i++)

bool ckmin(int& a, int b){ return b < a ? a = b, true : false; }

bool ckmax(int& a, int b){ return b > a ? a = b, true : false; }

const int N = 1e6 + 10;
int ri[N], le[N];
bool vis[N];

ll minimum_walk(vector<int> p, int s) {
	// if (s == 0) {
	ll ans = 0;
	int n = p.size();
	FOR(i, 0, n) {
		// cout << i << endl;
		if (!vis[i]) {
			int l, r;
			r = l = i;
			int cur = p[i];
			while (cur != i) {
				l = min(l, cur);r=max(r, cur);
				cur=p[cur];
			}
			cur = i;
			do {

				ans += abs(p[cur]-cur);
				le[cur] = l;
				ri[cur] = r;
				vis[cur]=true;
				cur=p[cur];
			} while (cur != i);
		}
	}

	int en = n-1;
	while (en != -1 && p[en] == en) en--;
	int st = 0;
	while (st != n && p[st] == st) st++;

	if (st > en) return 0;
	// cout << 'd' << endl;
	// cout << ans << 
	ans += 2 * (max(st - s, 0) + max(s - en, 0));
	s = min(max(s, st), en);
	int l = s, r = s;
	// cout << ans << endl;
	while (l > st || r < en) {
		// cout << l << r << endl;
		int tr = r;
		int hr = ri[tr];
		int tl = le[tr];
		int cr = 0;
		while (tr < en && (tl >= l || tr != hr)) {
			// cout << tl << tr << endl;
			if (tr == hr) cr+=2;
			tr++;
			tl=min(tl,le[tr]);
			hr = max(hr, ri[tr]);
		}

		int right = tr;

		// if (tl >= s) ans += cr; // didn't get through

		tl = l;
		int hl = le[tl];
		tr = ri[tl];
		int cl = 0;
		// cout << hl << tl << endl;
		while (tl > st && (tr <= r || tl != hl)) {
			// cout << hl << tl << endl;
			if (tl == hl) cl+=2;
			tl--;
			tr=max(tr, ri[tl]);
			hl = min(hl, le[tl]);
		}

		int left = tl;
		// if (tr <= s) ans += cl; // didn't get through

		// cout << cl << cr << endl;
		// cout << ans << endl;
		if (tl >= l || tr <= r) ans += cr + cl;
		else ans += min(cl, cr);
		// cout << ans << endl;
		l = left, r = right;
	}
	// cout << ans << endl;

	// int r =0;
	// FOR(i, 0, en+1) {
	// 	if (r < i) {
	// 		r++;
	// 		ans+=2;
	// 	}
	// 	r = max(p[i], r);
	// }
	return ans;
	// } else assert(false);
}



// int main() {
// 	ios::sync_with_stdio(false);
// 	cin.tie(nullptr);

// 	int res = minimum_walk({0, 2, 3, 1, 5, 6, 4}, 4);
// 	cout << res << endl;
// }












# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4440 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 3 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4440 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 3 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 114 ms 16904 KB Output is correct
31 Correct 103 ms 16976 KB Output is correct
32 Correct 84 ms 16892 KB Output is correct
33 Correct 78 ms 16980 KB Output is correct
34 Correct 84 ms 16888 KB Output is correct
35 Correct 81 ms 16980 KB Output is correct
36 Correct 81 ms 16984 KB Output is correct
37 Correct 97 ms 16980 KB Output is correct
38 Correct 83 ms 16888 KB Output is correct
39 Correct 87 ms 16900 KB Output is correct
40 Correct 82 ms 16888 KB Output is correct
41 Correct 98 ms 16900 KB Output is correct
42 Correct 97 ms 16888 KB Output is correct
43 Correct 79 ms 16980 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 4440 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3308'
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4440 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 3 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 114 ms 16904 KB Output is correct
31 Correct 103 ms 16976 KB Output is correct
32 Correct 84 ms 16892 KB Output is correct
33 Correct 78 ms 16980 KB Output is correct
34 Correct 84 ms 16888 KB Output is correct
35 Correct 81 ms 16980 KB Output is correct
36 Correct 81 ms 16984 KB Output is correct
37 Correct 97 ms 16980 KB Output is correct
38 Correct 83 ms 16888 KB Output is correct
39 Correct 87 ms 16900 KB Output is correct
40 Correct 82 ms 16888 KB Output is correct
41 Correct 98 ms 16900 KB Output is correct
42 Correct 97 ms 16888 KB Output is correct
43 Correct 79 ms 16980 KB Output is correct
44 Incorrect 1 ms 4440 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3308'
45 Halted 0 ms 0 KB -