oj.uz

Submission #921301

# Submission time Handle Problem Language Result Execution time Memory
921301 2024-02-03T16:43:27 Z siewjh Ancient Books (IOI17_books) C++17
100 / 100
 97 ms 26964 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 1'000'005;
int cyc[MAXN], lc[MAXN], rc[MAXN];
void extend(int &cl, int &cr, int tl, int tr){
	while (cl > tl || cr < tr){
		if (cl > tl){
			cl--;
			tl = min(tl, lc[cyc[cl]]); tr = max(tr, rc[cyc[cl]]);
		}
		else{
			cr++;
			tl = min(tl, lc[cyc[cr]]); tr = max(tr, rc[cyc[cr]]);
		}
	}
}
ll minimum_walk(vector<int> p, int s) {
	int nums = p.size();
	int mn = s, mx = s;
	memset(cyc, -1, sizeof(cyc));
	ll ans = 0;
	for (int i = 0; i < nums; i++) ans += abs(i - p[i]);
	for (int i = 0; i < nums; i++)
		if (cyc[i] == -1){
			int curr = i, l = i, r = i;
			do{
				cyc[curr] = i; l = min(l, curr); r = max(r, curr);
				curr = p[curr];
			} while (curr != i);
			lc[i] = l; rc[i] = r;
			if (p[i] != i){
				mn = min(mn, l); mx = max(mx, r);
			}
		}
	int cl = s, cr = s;
	extend(cl, cr, lc[cyc[s]], rc[cyc[s]]);
	while (cl > mn || cr < mx){
		int lnl = cl, lnr = cr, le = 0;
		while (lnl > mn && lnr <= cr){
			extend(lnl, lnr, lnl - 1, lnr);
			le++;
		}
		int rnl = cl, rnr = cr, re = 0;
		while (rnr < mx && rnl >= cl){
			extend(rnl, rnr, rnl, rnr + 1);
			re++;
		}
		if (lnl == rnl && lnr == rnr){ // cross the middle
			ans += 2 * min(le, re);
			cl = lnl; cr = lnr;
		}
		else{
			ans += 2 * (le + re);
			cl = lnl; cr = rnr;
		}
	}
	return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB Output is correct
2 Correct 2 ms 7772 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7772 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 2 ms 7772 KB Output is correct
11 Correct 2 ms 7768 KB Output is correct
12 Correct 2 ms 7768 KB Output is correct
13 Correct 2 ms 7772 KB Output is correct
14 Correct 2 ms 7772 KB Output is correct
15 Correct 2 ms 7772 KB Output is correct
16 Correct 2 ms 7768 KB Output is correct
17 Correct 2 ms 7772 KB Output is correct
18 Correct 2 ms 7772 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB Output is correct
2 Correct 2 ms 7772 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7772 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 2 ms 7772 KB Output is correct
11 Correct 2 ms 7768 KB Output is correct
12 Correct 2 ms 7768 KB Output is correct
13 Correct 2 ms 7772 KB Output is correct
14 Correct 2 ms 7772 KB Output is correct
15 Correct 2 ms 7772 KB Output is correct
16 Correct 2 ms 7768 KB Output is correct
17 Correct 2 ms 7772 KB Output is correct
18 Correct 2 ms 7772 KB Output is correct
19 Correct 2 ms 7772 KB Output is correct
20 Correct 2 ms 7772 KB Output is correct
21 Correct 2 ms 7772 KB Output is correct
22 Correct 2 ms 8028 KB Output is correct
23 Correct 2 ms 7772 KB Output is correct
24 Correct 2 ms 8024 KB Output is correct
25 Correct 2 ms 7772 KB Output is correct
26 Correct 2 ms 7772 KB Output is correct
27 Correct 2 ms 7772 KB Output is correct
28 Correct 2 ms 7772 KB Output is correct
29 Correct 2 ms 7772 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB Output is correct
2 Correct 2 ms 7772 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7772 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 2 ms 7772 KB Output is correct
11 Correct 2 ms 7768 KB Output is correct
12 Correct 2 ms 7768 KB Output is correct
13 Correct 2 ms 7772 KB Output is correct
14 Correct 2 ms 7772 KB Output is correct
15 Correct 2 ms 7772 KB Output is correct
16 Correct 2 ms 7768 KB Output is correct
17 Correct 2 ms 7772 KB Output is correct
18 Correct 2 ms 7772 KB Output is correct
19 Correct 2 ms 7772 KB Output is correct
20 Correct 2 ms 7772 KB Output is correct
21 Correct 2 ms 7772 KB Output is correct
22 Correct 2 ms 8028 KB Output is correct
23 Correct 2 ms 7772 KB Output is correct
24 Correct 2 ms 8024 KB Output is correct
25 Correct 2 ms 7772 KB Output is correct
26 Correct 2 ms 7772 KB Output is correct
27 Correct 2 ms 7772 KB Output is correct
28 Correct 2 ms 7772 KB Output is correct
29 Correct 2 ms 7772 KB Output is correct
30 Correct 97 ms 26484 KB Output is correct
31 Correct 92 ms 22356 KB Output is correct
32 Correct 79 ms 26708 KB Output is correct
33 Correct 85 ms 26472 KB Output is correct
34 Correct 86 ms 26704 KB Output is correct
35 Correct 90 ms 26580 KB Output is correct
36 Correct 83 ms 26600 KB Output is correct
37 Correct 78 ms 26708 KB Output is correct
38 Correct 78 ms 26476 KB Output is correct
39 Correct 81 ms 26444 KB Output is correct
40 Correct 84 ms 26452 KB Output is correct
41 Correct 87 ms 26472 KB Output is correct
42 Correct 87 ms 26560 KB Output is correct
43 Correct 85 ms 26472 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7772 KB Output is correct
2 Correct 2 ms 7868 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7772 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 2 ms 7772 KB Output is correct
11 Correct 2 ms 7772 KB Output is correct
12 Correct 2 ms 7772 KB Output is correct
13 Correct 2 ms 8028 KB Output is correct
14 Correct 2 ms 7772 KB Output is correct
15 Correct 2 ms 7772 KB Output is correct
16 Correct 2 ms 7772 KB Output is correct
17 Correct 2 ms 7772 KB Output is correct
18 Correct 2 ms 7856 KB Output is correct
19 Correct 2 ms 7768 KB Output is correct
20 Correct 2 ms 7768 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB Output is correct
2 Correct 2 ms 7772 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7772 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 2 ms 7772 KB Output is correct
11 Correct 2 ms 7768 KB Output is correct
12 Correct 2 ms 7768 KB Output is correct
13 Correct 2 ms 7772 KB Output is correct
14 Correct 2 ms 7772 KB Output is correct
15 Correct 2 ms 7772 KB Output is correct
16 Correct 2 ms 7768 KB Output is correct
17 Correct 2 ms 7772 KB Output is correct
18 Correct 2 ms 7772 KB Output is correct
19 Correct 2 ms 7772 KB Output is correct
20 Correct 2 ms 7772 KB Output is correct
21 Correct 2 ms 7772 KB Output is correct
22 Correct 2 ms 8028 KB Output is correct
23 Correct 2 ms 7772 KB Output is correct
24 Correct 2 ms 8024 KB Output is correct
25 Correct 2 ms 7772 KB Output is correct
26 Correct 2 ms 7772 KB Output is correct
27 Correct 2 ms 7772 KB Output is correct
28 Correct 2 ms 7772 KB Output is correct
29 Correct 2 ms 7772 KB Output is correct
30 Correct 97 ms 26484 KB Output is correct
31 Correct 92 ms 22356 KB Output is correct
32 Correct 79 ms 26708 KB Output is correct
33 Correct 85 ms 26472 KB Output is correct
34 Correct 86 ms 26704 KB Output is correct
35 Correct 90 ms 26580 KB Output is correct
36 Correct 83 ms 26600 KB Output is correct
37 Correct 78 ms 26708 KB Output is correct
38 Correct 78 ms 26476 KB Output is correct
39 Correct 81 ms 26444 KB Output is correct
40 Correct 84 ms 26452 KB Output is correct
41 Correct 87 ms 26472 KB Output is correct
42 Correct 87 ms 26560 KB Output is correct
43 Correct 85 ms 26472 KB Output is correct
44 Correct 2 ms 7772 KB Output is correct
45 Correct 2 ms 7868 KB Output is correct
46 Correct 2 ms 7772 KB Output is correct
47 Correct 2 ms 7772 KB Output is correct
48 Correct 2 ms 7772 KB Output is correct
49 Correct 2 ms 7772 KB Output is correct
50 Correct 2 ms 7772 KB Output is correct
51 Correct 2 ms 7772 KB Output is correct
52 Correct 2 ms 7772 KB Output is correct
53 Correct 2 ms 7772 KB Output is correct
54 Correct 2 ms 7772 KB Output is correct
55 Correct 2 ms 7772 KB Output is correct
56 Correct 2 ms 8028 KB Output is correct
57 Correct 2 ms 7772 KB Output is correct
58 Correct 2 ms 7772 KB Output is correct
59 Correct 2 ms 7772 KB Output is correct
60 Correct 2 ms 7772 KB Output is correct
61 Correct 2 ms 7856 KB Output is correct
62 Correct 2 ms 7768 KB Output is correct
63 Correct 2 ms 7768 KB Output is correct
64 Correct 80 ms 26492 KB Output is correct
65 Correct 87 ms 26496 KB Output is correct
66 Correct 80 ms 26704 KB Output is correct
67 Correct 78 ms 26620 KB Output is correct
68 Correct 10 ms 13432 KB Output is correct
69 Correct 10 ms 13404 KB Output is correct
70 Correct 11 ms 13552 KB Output is correct
71 Correct 10 ms 13508 KB Output is correct
72 Correct 10 ms 13404 KB Output is correct
73 Correct 12 ms 11608 KB Output is correct
74 Correct 83 ms 26708 KB Output is correct
75 Correct 86 ms 26608 KB Output is correct
76 Correct 91 ms 26964 KB Output is correct
77 Correct 81 ms 26708 KB Output is correct
78 Correct 82 ms 26708 KB Output is correct
79 Correct 81 ms 26704 KB Output is correct
80 Correct 74 ms 26704 KB Output is correct
81 Correct 88 ms 26492 KB Output is correct
82 Correct 79 ms 26708 KB Output is correct
83 Correct 84 ms 26608 KB Output is correct
84 Correct 83 ms 26492 KB Output is correct
85 Correct 82 ms 26960 KB Output is correct
86 Correct 79 ms 26708 KB Output is correct
87 Correct 84 ms 26732 KB Output is correct
88 Correct 93 ms 26704 KB Output is correct
89 Correct 85 ms 26604 KB Output is correct
90 Correct 78 ms 26708 KB Output is correct
91 Correct 79 ms 26704 KB Output is correct
92 Correct 81 ms 26488 KB Output is correct