Submission #1048550

# Submission time Handle Problem Language Result Execution time Memory
1048550 2024-08-08T08:17:33 Z pcc Ancient Books (IOI17_books) C++17
50 / 100
82 ms 20108 KB
#include "books.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long
const int mxn = 1e6+10;
int N;
int l[mxn],r[mxn];

long long minimum_walk(std::vector<int> p, int s) {
	ll ans = 0;
	N = p.size();
	for(int i = 0;i<N;i++){
		if(p[i] == i)continue;
		int a = i,b = p[i];
		if(a<b){
			l[a]++;
			l[b]--;
		}
		else{
			r[b]++;
			r[a]--;
		}
	}
	for(int i = 1;i<N;i++){
		l[i] += l[i-1];
		r[i] += r[i-1];
	}
	int rp = -1;
	for(int i = 0;i+1<N;i++){
		if(max(l[i],r[i]) != 0)rp = i;
	}
	for(int i = 0;i+1<N;i++){
		if(rp<i)break;
		ans += max({l[i],r[i],1})<<1;
	}
	return ans;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 2492 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 2492 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 0 ms 2396 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2396 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 2492 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 0 ms 2396 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2396 KB Output is correct
30 Correct 59 ms 15948 KB Output is correct
31 Correct 73 ms 20108 KB Output is correct
32 Correct 59 ms 19676 KB Output is correct
33 Correct 61 ms 19796 KB Output is correct
34 Correct 59 ms 19820 KB Output is correct
35 Correct 71 ms 19796 KB Output is correct
36 Correct 75 ms 19832 KB Output is correct
37 Correct 68 ms 19796 KB Output is correct
38 Correct 60 ms 19736 KB Output is correct
39 Correct 60 ms 19860 KB Output is correct
40 Correct 59 ms 19796 KB Output is correct
41 Correct 60 ms 19704 KB Output is correct
42 Correct 82 ms 19852 KB Output is correct
43 Correct 73 ms 20052 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2396 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 2492 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 0 ms 2396 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2396 KB Output is correct
30 Correct 59 ms 15948 KB Output is correct
31 Correct 73 ms 20108 KB Output is correct
32 Correct 59 ms 19676 KB Output is correct
33 Correct 61 ms 19796 KB Output is correct
34 Correct 59 ms 19820 KB Output is correct
35 Correct 71 ms 19796 KB Output is correct
36 Correct 75 ms 19832 KB Output is correct
37 Correct 68 ms 19796 KB Output is correct
38 Correct 60 ms 19736 KB Output is correct
39 Correct 60 ms 19860 KB Output is correct
40 Correct 59 ms 19796 KB Output is correct
41 Correct 60 ms 19704 KB Output is correct
42 Correct 82 ms 19852 KB Output is correct
43 Correct 73 ms 20052 KB Output is correct
44 Incorrect 0 ms 2396 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -