답안 #404126

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
404126 2021-05-13T20:03:24 Z b00n0rp 고대 책들 (IOI17_books) C++17
100 / 100
182 ms 26568 KB
#include<bits/stdc++.h>
#include "books.h"
using namespace std;

#define vi vector<int>
#define REP(i,n) for(int i = 0; i < n; i ++)
#define FOR(i,a,b) for(int i = a; i < b; i ++)

const int MX = 1000005;

int n,S;
int lft,rgt,cur = 0;
int C[MX],L[MX],R[MX];

int solve(int l,int r){
	int ll = L[C[l]];
	int rr = R[C[r]];
	while(ll < l or rr > r){
		if(ll < l){
			l--;
			ll = min(ll,L[C[l]]);
			rr = max(rr,R[C[l]]);
		}
		else{
			r++;
			rr = max(rr,R[C[r]]);
			ll = min(ll,L[C[r]]);
		}
	}
	int costleft = 0,costright = 0;
	int indleft = -1,indright = -1;
	int mn = l,mx = r;
	for(int i = l-1; i >= lft; i --){
		if(R[C[i]] > S){
			indleft = i;
			break;
		}
	}
	for(int i = r+1; i <= rgt; i ++){
		if(L[C[i]] < S){
			indright = i;
			break;
		}
	}
	if(indleft == -1){
		for(int i = l-1; i >= lft; i --){
			mn = min(mn,L[C[i]]);
			if(mn == i) costleft += 2;
		}
		for(int i = r+1; i <= rgt; i ++){
			mx = max(mx,R[C[i]]);
			if(mx == i) costright += 2;
		}
		return costleft+costright;
	}
	int lcur = l,rcur = r;
	while(ll > indleft){
		costleft += 2;
		ll--;
		while(ll < l){
			l--;
			ll = min(ll,L[C[l]]);
			rcur = max(rcur,R[C[l]]);
		}
	}
	while(rr < indright){
		costright += 2;
		rr++;
		while(rr > r){
			r++;
			rr = max(rr,R[C[r]]);
			lcur = min(lcur,L[C[l]]);
		}
	}
	ll = min(lcur,ll);
	rr = max(rcur,rr);
	while(ll < l or rr > r){
		if(ll < l){
			l--;
			ll = min(ll,L[C[l]]);
			rr = max(rr,R[C[l]]);
		}
		else{
			r++;
			rr = max(rr,R[C[r]]);
			ll = min(ll,L[C[r]]);
		}
	}
	return min(costleft,costright)+solve(ll,rr);
}

long long minimum_walk(vi p, int s) {
	S = s;
	long long ans = 0;
	n = p.size();
	lft = s;
	rgt = s;
	REP(i,n) C[i] = -1;
	REP(i,n){
		ans += abs(p[i]-i);
		if(C[i] == -1){
			C[i] = cur;
			L[cur] = R[cur] = i;
			int j = i;
			while(true){
				j = p[j];
				C[j] = cur;
				R[cur] = max(R[cur],j);
				if(i == j) break;
			}
			cur++;
		}
		if(i != p[i]){
			lft = min(lft,i);
			rgt = max(rgt,i);
		}
	}
	return ans+solve(s,s);
}
# 결과 실행 시간 메모리 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 204 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 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
# 결과 실행 시간 메모리 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 204 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 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 272 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 304 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
# 결과 실행 시간 메모리 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 204 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 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 272 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 304 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 182 ms 12152 KB Output is correct
31 Correct 171 ms 12168 KB Output is correct
32 Correct 135 ms 19908 KB Output is correct
33 Correct 134 ms 17524 KB Output is correct
34 Correct 154 ms 17552 KB Output is correct
35 Correct 134 ms 16376 KB Output is correct
36 Correct 130 ms 14068 KB Output is correct
37 Correct 163 ms 12380 KB Output is correct
38 Correct 128 ms 12228 KB Output is correct
39 Correct 131 ms 12208 KB Output is correct
40 Correct 164 ms 12156 KB Output is correct
41 Correct 163 ms 12136 KB Output is correct
42 Correct 143 ms 12192 KB Output is correct
43 Correct 135 ms 17860 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 304 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
# 결과 실행 시간 메모리 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 204 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 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 272 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 304 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 182 ms 12152 KB Output is correct
31 Correct 171 ms 12168 KB Output is correct
32 Correct 135 ms 19908 KB Output is correct
33 Correct 134 ms 17524 KB Output is correct
34 Correct 154 ms 17552 KB Output is correct
35 Correct 134 ms 16376 KB Output is correct
36 Correct 130 ms 14068 KB Output is correct
37 Correct 163 ms 12380 KB Output is correct
38 Correct 128 ms 12228 KB Output is correct
39 Correct 131 ms 12208 KB Output is correct
40 Correct 164 ms 12156 KB Output is correct
41 Correct 163 ms 12136 KB Output is correct
42 Correct 143 ms 12192 KB Output is correct
43 Correct 135 ms 17860 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 296 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 300 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 3 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 304 KB Output is correct
55 Correct 1 ms 300 KB Output is correct
56 Correct 1 ms 304 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 304 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 177 ms 24548 KB Output is correct
65 Correct 154 ms 25136 KB Output is correct
66 Correct 132 ms 19056 KB Output is correct
67 Correct 133 ms 18916 KB Output is correct
68 Correct 13 ms 2308 KB Output is correct
69 Correct 13 ms 2124 KB Output is correct
70 Correct 15 ms 2252 KB Output is correct
71 Correct 14 ms 2480 KB Output is correct
72 Correct 21 ms 2684 KB Output is correct
73 Correct 14 ms 1972 KB Output is correct
74 Correct 138 ms 24168 KB Output is correct
75 Correct 159 ms 24132 KB Output is correct
76 Correct 150 ms 24420 KB Output is correct
77 Correct 135 ms 24556 KB Output is correct
78 Correct 165 ms 23776 KB Output is correct
79 Correct 146 ms 23668 KB Output is correct
80 Correct 131 ms 26568 KB Output is correct
81 Correct 163 ms 22644 KB Output is correct
82 Correct 136 ms 22636 KB Output is correct
83 Correct 134 ms 21736 KB Output is correct
84 Correct 134 ms 21092 KB Output is correct
85 Correct 144 ms 19812 KB Output is correct
86 Correct 131 ms 19176 KB Output is correct
87 Correct 137 ms 25316 KB Output is correct
88 Correct 144 ms 24296 KB Output is correct
89 Correct 166 ms 22376 KB Output is correct
90 Correct 135 ms 18876 KB Output is correct
91 Correct 131 ms 18816 KB Output is correct
92 Correct 156 ms 18796 KB Output is correct