답안 #371126

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
371126	2021-02-25T21:58:49 Z	doowey	고대 책들 (IOI17_books)	C++14	50 / 100	205 ms	20184 KB

books

#include <bits/stdc++.h>
#include "books.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair

int n;
const int N = (int)1e6 + 100;
int lef[N], rig[N];
bool vis[N];
bool has[N];

int tl, tr;


void extend(int &li, int &ri){
    int ni = min(lef[li],lef[ri]);
    int nj = max(rig[li],rig[ri]);
    while(li > ni || ri < nj){
        if(li > ni){
            li--;
            ni = min(ni, lef[li]);
            nj = max(nj, rig[li]);
        }
        else{
            ri++;
            ni = min(ni, lef[ri]);
            nj = max(nj, rig[ri]);
        }
    }
}

int disl[N];
int disr[N];

int st;

int solve(int li, int ri){
    int cnt = 0;
    extend(li, ri);
    while(li != tl || ri != tr){
        if(li == tl){
            cnt += 2;
            ri ++ ;
        }
        else if(ri == tr){
            cnt += 2;
            li -- ;
        }
        else{
            int ca = 0;
            int nl = li;
            bool ok = false;
            while(nl >= tl){
                ca += 2;
                nl -- ;
                for(int j = nl; j >= lef[nl]; j -- ){
                    if(rig[j] >= st){
                        ok=true;
                        break;
                    }
                }
                nl = min(nl, lef[nl]);
                if(ok)break;
            }
            if(!ok){
                li--;
                cnt += 2;
                extend(li, ri);
                continue;
            }
            int cb = 0;
            int nr = ri;
            ok = false;
            while(nr <= tr){
                cb += 2;
                nr ++ ;
                for(int j = nr; j <= rig[nr] ; j ++ ){
                    if(rig[j] <= st){
                        ok=true;
                        break;
                    }
                }
                nr = max(nr, rig[nr]);
                if(ok)break;
            }
            cnt += min(ca, cb);
            li = nl;
            ri = nr;
        }
        extend(li,ri);
    }
    return cnt;
}
long long minimum_walk(vector<int> p, int s) {
	n = p.size();
	st = s;
	int id;
	int low, high;
	ll sol = 0;
    tl = tr = s;
	for(int i = 0 ; i < n; i ++ ){
        sol += abs(p[i] - i);
        if(!vis[i]){
            vector<int> cyc;
            id = i;
            while(!vis[id]){
                vis[id]=true;
                cyc.push_back(id);
                id=p[id];
            }
            low = n-1;
            high = 0;
            for(auto x : cyc){
                low = min(low, x);
                high = max(high, x);
            }
            for(auto x : cyc){
                lef[x] = low;
                rig[x] = high;
            }
        }
        if(p[i] != i){
            tl = min(tl, i);
            tr = max(tr, i);
        }
	}
	return sol + solve(s, s);
}

Subtask #1

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	0 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	396 KB	Output is correct
17	Correct	0 ms	364 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	0 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	396 KB	Output is correct
17	Correct	0 ms	364 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	508 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct

Subtask #3

28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	0 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	396 KB	Output is correct
17	Correct	0 ms	364 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	508 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	198 ms	20184 KB	Output is correct
31	Correct	205 ms	19024 KB	Output is correct
32	Correct	186 ms	17004 KB	Output is correct
33	Correct	165 ms	17004 KB	Output is correct
34	Correct	172 ms	17004 KB	Output is correct
35	Correct	169 ms	17004 KB	Output is correct
36	Correct	163 ms	17004 KB	Output is correct
37	Correct	150 ms	17004 KB	Output is correct
38	Correct	141 ms	17132 KB	Output is correct
39	Correct	140 ms	17004 KB	Output is correct
40	Correct	145 ms	17172 KB	Output is correct
41	Correct	168 ms	17924 KB	Output is correct
42	Correct	157 ms	17956 KB	Output is correct
43	Correct	164 ms	17004 KB	Output is correct

Subtask #4

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	15 ms	492 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	0 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	396 KB	Output is correct
17	Correct	0 ms	364 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	508 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	198 ms	20184 KB	Output is correct
31	Correct	205 ms	19024 KB	Output is correct
32	Correct	186 ms	17004 KB	Output is correct
33	Correct	165 ms	17004 KB	Output is correct
34	Correct	172 ms	17004 KB	Output is correct
35	Correct	169 ms	17004 KB	Output is correct
36	Correct	163 ms	17004 KB	Output is correct
37	Correct	150 ms	17004 KB	Output is correct
38	Correct	141 ms	17132 KB	Output is correct
39	Correct	140 ms	17004 KB	Output is correct
40	Correct	145 ms	17172 KB	Output is correct
41	Correct	168 ms	17924 KB	Output is correct
42	Correct	157 ms	17956 KB	Output is correct
43	Correct	164 ms	17004 KB	Output is correct
44	Runtime error	15 ms	492 KB	Execution killed with signal 11
45	Halted	0 ms	0 KB	-