Submission #949609

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
949609	2024-03-19T12:28:02 Z	qin	Ancient Books (IOI17_books)	C++17	50 / 100	88 ms	14196 KB

books

#include <bits/stdc++.h>
#define fi first
#define se second
#define ssize(x) int(x.size())
#define pn printf("\n")
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(), x.rend()
#define vv vector
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
int inf = 2e09; ll infll = 2e18; int mod = 119<<23|1;
ll minimum_walk(vv<int> p, int s){
		int n = ssize(p);
		vv<int> vis(n, 0);
		int l = 0;
		ll result = 0;
		vv<pii> st;
		for(int i = 0; i < n; ++i) if(!vis[i]){
				//~ printf("%d\n", i);
				int mx = i; vis[i] = ++l; result += abs(i-p[i]);
				for(int u = p[i]; u != i; u = p[u]) vis[u] = l, mx = max(mx, u), result += abs(u-p[u]);
				if(st.empty()) {if(mx != i) st.emplace_back(i, mx);}
				else{
						if(i < st.back().se) st.back().se = max(st.back().se, mx);
						else if(mx != i) st.emplace_back(i, mx);
				}
				//~ printf("%d %lld\n", i, result);
		}
		//~ printf("a\n");
		for(int i = 1; i < ssize(st); ++i) result += 2*(st[i].fi-st[i-1].se);
		int mn = inf;
		for(int i = s; i < n; ++i) if(i != p[i]){ mn = i-s; break; }
		for(int i = s; ~i; --i) if(i != p[i]){ mn = min(s-i, mn); break; }
		if(mn != inf) result += 2*mn;
		return result;
}
#ifdef LOCAL
int main(){
		int T = 1;
		for(++T; --T; ){
				int n, s; scanf("%d%d", &n, &s);
				vv<int> p(n);
				for(int i = 0; i < n; ++i) scanf("%d", &p[i]);
				ll result = minimum_walk(p, s);
				printf("%lld\n", result);
		}
		return 0;
}
#endif

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	88 ms	12120 KB	Output is correct
31	Correct	88 ms	12116 KB	Output is correct
32	Correct	75 ms	12116 KB	Output is correct
33	Correct	78 ms	14196 KB	Output is correct
34	Correct	78 ms	14176 KB	Output is correct
35	Correct	79 ms	14140 KB	Output is correct
36	Correct	83 ms	13176 KB	Output is correct
37	Correct	74 ms	12116 KB	Output is correct
38	Correct	74 ms	12116 KB	Output is correct
39	Correct	73 ms	12112 KB	Output is correct
40	Correct	76 ms	12012 KB	Output is correct
41	Correct	84 ms	12116 KB	Output is correct
42	Correct	82 ms	12028 KB	Output is correct
43	Correct	78 ms	12120 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	348 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	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	88 ms	12120 KB	Output is correct
31	Correct	88 ms	12116 KB	Output is correct
32	Correct	75 ms	12116 KB	Output is correct
33	Correct	78 ms	14196 KB	Output is correct
34	Correct	78 ms	14176 KB	Output is correct
35	Correct	79 ms	14140 KB	Output is correct
36	Correct	83 ms	13176 KB	Output is correct
37	Correct	74 ms	12116 KB	Output is correct
38	Correct	74 ms	12116 KB	Output is correct
39	Correct	73 ms	12112 KB	Output is correct
40	Correct	76 ms	12012 KB	Output is correct
41	Correct	84 ms	12116 KB	Output is correct
42	Correct	82 ms	12028 KB	Output is correct
43	Correct	78 ms	12120 KB	Output is correct
44	Incorrect	1 ms	348 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #949609

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0