oj.uz

Submission #427475

# Submission time Handle Problem Language Result Execution time Memory
427475 2021-06-14T15:59:12 Z Tangent Ancient Books (IOI17_books) C++17
50 / 100
 274 ms 19740 KB 
#include "books.h"
#include "bits/stdc++.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;

#define ffor(i, a, b) for (ll i = (a); i < (ll)(b); i++)
#define fford(i, a, b) for (ll i = (a); i > (ll)(b); i--)
#define rep(i, n) ffor(i, 0, n)
#define forin(x, a) for (auto &x: a)
#define all(a) a.begin(), a.end()

long long minimum_walk(std::vector<int> p, int s) {
	int n = p.size();
	vii seen(n);
	vpii segs;
	ll res = 0;
	rep(i, n) {
		if (!seen[i]) {
			seen[i] = true;
			int lo = i, hi = i;
			res += abs(p[i] - i);
			int curr = p[i];
			while (curr != i) {
				lo = min(lo, curr);
				hi = max(hi, curr);
				seen[curr] = true;
				res += abs(curr - p[curr]);
				curr = p[curr];
			}
			if (lo != hi)
				segs.emplace_back(lo, hi);
		}
	}
	sort(all(segs));
	reverse(all(segs));
	if (segs.empty()) return res;
	vpii merged = {segs.back()};
	segs.pop_back();
	while (!segs.empty()) {
		if (segs.back().first <= merged.back().second) {
			merged.back().second = max(merged.back().second, segs.back().second);
		} else {
			merged.emplace_back(segs.back());
		}
		segs.pop_back();
	}
	rep(i, merged.size() - 1) {
		res += (merged[i + 1].first - merged[i].second) * 2;
	}
	
	bool inside = false;
	forin(seg, merged) {
		if (seg.first <= s && s <= seg.second) {
			inside = true;
			rep(i, n) {
				if (p[s + i] != s + i || p[s - i] != s - i) {
					res += 2 * i;
					break;
				}
			}
		}
	}
	if (!inside) {
		ffor(i, s, n) {
			if (p[i] != i) {
				res += 2 * (i - s);
				break;
			}
		}
		fford(i, s, -1) {
			if (p[i] != i) {
				res += 2 * (i - s);
				break;
			}
		}
	}

	return res;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 292 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 288 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 292 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 288 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 292 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 288 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 193 ms 12572 KB Output is correct
31 Correct 274 ms 12644 KB Output is correct
32 Correct 136 ms 12664 KB Output is correct
33 Correct 145 ms 17204 KB Output is correct
34 Correct 138 ms 17232 KB Output is correct
35 Correct 149 ms 17380 KB Output is correct
36 Correct 170 ms 15540 KB Output is correct
37 Correct 151 ms 13160 KB Output is correct
38 Correct 138 ms 13452 KB Output is correct
39 Correct 188 ms 14184 KB Output is correct
40 Correct 156 ms 16164 KB Output is correct
41 Correct 165 ms 17440 KB Output is correct
42 Correct 161 ms 17460 KB Output is correct
43 Correct 143 ms 19740 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 292 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 288 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 193 ms 12572 KB Output is correct
31 Correct 274 ms 12644 KB Output is correct
32 Correct 136 ms 12664 KB Output is correct
33 Correct 145 ms 17204 KB Output is correct
34 Correct 138 ms 17232 KB Output is correct
35 Correct 149 ms 17380 KB Output is correct
36 Correct 170 ms 15540 KB Output is correct
37 Correct 151 ms 13160 KB Output is correct
38 Correct 138 ms 13452 KB Output is correct
39 Correct 188 ms 14184 KB Output is correct
40 Correct 156 ms 16164 KB Output is correct
41 Correct 165 ms 17440 KB Output is correct
42 Correct 161 ms 17460 KB Output is correct
43 Correct 143 ms 19740 KB Output is correct
44 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -