oj.uz

Submission #42759

# Submission time Handle Problem Language Result Execution time Memory
42759 2018-03-03T20:25:28 Z yusufake Ancient Books (IOI17_books) C++
100 / 100
 269 ms 169312 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
#define _   int v, int tl, int tr, int l, int r
#define tm  (tl+tr >> 1)
#define sol v+v,tl,tm,l,r
#define sag v+v+1,tm+1,tr,l,r
 
#define mp make_pair
#define pb push_back
#define st first
#define nd second
 
//typedef long long ll;
//typedef pair < ll , ll > pp;
 
const int mod = 1e9 + 7;
const int N   = 1e6 + 6;
 
int H[N],T[N],A[N],B[N],n,i,j,l,r,ll,rr,t1,t2,t,a,b,lll,rrr;
long long x;
 
void relax(int &l, int &r, int &a, int &b){
    for(;l > a || r < b;){
        if(l > a) { l--; a = min(a,A[l]); b = max(b,B[l]); }
        if(r < b) { r++; a = min(a,A[r]); b = max(b,B[r]); }
    }
}
 
long long minimum_walk(vector < int > p, int s){
    x = 0;
    n = p.size();
	for(i=0;i<n;i++){
		x += abs(p[i] - i);
		if(H[i]) continue;
		r = i;
		for(j=i; !H[j] ; j = p[j]){
			H[j] = 1;
			r = max(r , j);
		}
        for(j=i; !T[j] ; j = p[j]){
		    T[j] = 1; A[j] = i; B[j] = r;
        }
    }
    
    for(i=0;i<n && p[i] == i; i++);
    for(j=n-1;j>=0 && p[j] == j; j--);
    
    l = r = s; a = A[s]; b = B[s];
    relax(l,r,a,b);
    for(; l > i || r < j ;){
        t1 = 0;
        ll = lll = l; rr = rrr = r;
        if(l > i){
            for(a=l, b=r ; rr == r && ll > i ; )
            { ll--; t1++; a = min(A[ll],a); b = max(B[ll],b); relax(ll,rr,a,b); }    
            if(r >= j) { t += t1; break; }
        }
        
        t2 = 0;
        if(r < j){
            for(a = l, b = r ; lll == l && rrr < j ; )
            { rrr++; t2++; a = min(A[rrr],a); b = max(B[rrr],b); relax(lll,rrr,a,b); }    
            if(l <= i) { t += t2; break; }
        }
        if(rr == r) { if(lll != l) assert(0);  t += t1+t2; break; }
        t += min(t1,t2);
        l = ll; r = rr;
        if(lll != ll || rrr != rr) assert(0);
    }
    
    return x + t+t;
}
/*
int main(){
    cout << minimum_walk({1,0,2,3} , 2);
} */

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 624 KB Output is correct
5 Correct 1 ms 624 KB Output is correct
6 Correct 1 ms 668 KB Output is correct
7 Correct 2 ms 668 KB Output is correct
8 Correct 1 ms 668 KB Output is correct
9 Correct 1 ms 668 KB Output is correct
10 Correct 1 ms 668 KB Output is correct
11 Correct 1 ms 668 KB Output is correct
12 Correct 1 ms 732 KB Output is correct
13 Correct 1 ms 732 KB Output is correct
14 Correct 1 ms 732 KB Output is correct
15 Correct 1 ms 732 KB Output is correct
16 Correct 1 ms 732 KB Output is correct
17 Correct 1 ms 732 KB Output is correct
18 Correct 1 ms 732 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 624 KB Output is correct
5 Correct 1 ms 624 KB Output is correct
6 Correct 1 ms 668 KB Output is correct
7 Correct 2 ms 668 KB Output is correct
8 Correct 1 ms 668 KB Output is correct
9 Correct 1 ms 668 KB Output is correct
10 Correct 1 ms 668 KB Output is correct
11 Correct 1 ms 668 KB Output is correct
12 Correct 1 ms 732 KB Output is correct
13 Correct 1 ms 732 KB Output is correct
14 Correct 1 ms 732 KB Output is correct
15 Correct 1 ms 732 KB Output is correct
16 Correct 1 ms 732 KB Output is correct
17 Correct 1 ms 732 KB Output is correct
18 Correct 1 ms 732 KB Output is correct
19 Correct 1 ms 732 KB Output is correct
20 Correct 1 ms 732 KB Output is correct
21 Correct 1 ms 732 KB Output is correct
22 Correct 1 ms 732 KB Output is correct
23 Correct 1 ms 732 KB Output is correct
24 Correct 1 ms 732 KB Output is correct
25 Correct 1 ms 732 KB Output is correct
26 Correct 1 ms 732 KB Output is correct
27 Correct 1 ms 732 KB Output is correct
28 Correct 1 ms 732 KB Output is correct
29 Correct 1 ms 732 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 624 KB Output is correct
5 Correct 1 ms 624 KB Output is correct
6 Correct 1 ms 668 KB Output is correct
7 Correct 2 ms 668 KB Output is correct
8 Correct 1 ms 668 KB Output is correct
9 Correct 1 ms 668 KB Output is correct
10 Correct 1 ms 668 KB Output is correct
11 Correct 1 ms 668 KB Output is correct
12 Correct 1 ms 732 KB Output is correct
13 Correct 1 ms 732 KB Output is correct
14 Correct 1 ms 732 KB Output is correct
15 Correct 1 ms 732 KB Output is correct
16 Correct 1 ms 732 KB Output is correct
17 Correct 1 ms 732 KB Output is correct
18 Correct 1 ms 732 KB Output is correct
19 Correct 1 ms 732 KB Output is correct
20 Correct 1 ms 732 KB Output is correct
21 Correct 1 ms 732 KB Output is correct
22 Correct 1 ms 732 KB Output is correct
23 Correct 1 ms 732 KB Output is correct
24 Correct 1 ms 732 KB Output is correct
25 Correct 1 ms 732 KB Output is correct
26 Correct 1 ms 732 KB Output is correct
27 Correct 1 ms 732 KB Output is correct
28 Correct 1 ms 732 KB Output is correct
29 Correct 1 ms 732 KB Output is correct
30 Correct 269 ms 24044 KB Output is correct
31 Correct 264 ms 24044 KB Output is correct
32 Correct 143 ms 24044 KB Output is correct
33 Correct 156 ms 24044 KB Output is correct
34 Correct 159 ms 24044 KB Output is correct
35 Correct 160 ms 24044 KB Output is correct
36 Correct 157 ms 24044 KB Output is correct
37 Correct 155 ms 24044 KB Output is correct
38 Correct 162 ms 24044 KB Output is correct
39 Correct 162 ms 24044 KB Output is correct
40 Correct 184 ms 24172 KB Output is correct
41 Correct 243 ms 24172 KB Output is correct
42 Correct 211 ms 24172 KB Output is correct
43 Correct 166 ms 24172 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 24172 KB Output is correct
2 Correct 2 ms 24172 KB Output is correct
3 Correct 1 ms 24172 KB Output is correct
4 Correct 1 ms 24172 KB Output is correct
5 Correct 2 ms 24172 KB Output is correct
6 Correct 1 ms 24172 KB Output is correct
7 Correct 1 ms 24172 KB Output is correct
8 Correct 2 ms 24172 KB Output is correct
9 Correct 1 ms 24172 KB Output is correct
10 Correct 1 ms 24172 KB Output is correct
11 Correct 1 ms 24172 KB Output is correct
12 Correct 1 ms 24172 KB Output is correct
13 Correct 1 ms 24172 KB Output is correct
14 Correct 1 ms 24172 KB Output is correct
15 Correct 1 ms 24172 KB Output is correct
16 Correct 1 ms 24172 KB Output is correct
17 Correct 1 ms 24172 KB Output is correct
18 Correct 2 ms 24172 KB Output is correct
19 Correct 1 ms 24172 KB Output is correct
20 Correct 2 ms 24172 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 376 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 1 ms 424 KB Output is correct
4 Correct 1 ms 624 KB Output is correct
5 Correct 1 ms 624 KB Output is correct
6 Correct 1 ms 668 KB Output is correct
7 Correct 2 ms 668 KB Output is correct
8 Correct 1 ms 668 KB Output is correct
9 Correct 1 ms 668 KB Output is correct
10 Correct 1 ms 668 KB Output is correct
11 Correct 1 ms 668 KB Output is correct
12 Correct 1 ms 732 KB Output is correct
13 Correct 1 ms 732 KB Output is correct
14 Correct 1 ms 732 KB Output is correct
15 Correct 1 ms 732 KB Output is correct
16 Correct 1 ms 732 KB Output is correct
17 Correct 1 ms 732 KB Output is correct
18 Correct 1 ms 732 KB Output is correct
19 Correct 1 ms 732 KB Output is correct
20 Correct 1 ms 732 KB Output is correct
21 Correct 1 ms 732 KB Output is correct
22 Correct 1 ms 732 KB Output is correct
23 Correct 1 ms 732 KB Output is correct
24 Correct 1 ms 732 KB Output is correct
25 Correct 1 ms 732 KB Output is correct
26 Correct 1 ms 732 KB Output is correct
27 Correct 1 ms 732 KB Output is correct
28 Correct 1 ms 732 KB Output is correct
29 Correct 1 ms 732 KB Output is correct
30 Correct 269 ms 24044 KB Output is correct
31 Correct 264 ms 24044 KB Output is correct
32 Correct 143 ms 24044 KB Output is correct
33 Correct 156 ms 24044 KB Output is correct
34 Correct 159 ms 24044 KB Output is correct
35 Correct 160 ms 24044 KB Output is correct
36 Correct 157 ms 24044 KB Output is correct
37 Correct 155 ms 24044 KB Output is correct
38 Correct 162 ms 24044 KB Output is correct
39 Correct 162 ms 24044 KB Output is correct
40 Correct 184 ms 24172 KB Output is correct
41 Correct 243 ms 24172 KB Output is correct
42 Correct 211 ms 24172 KB Output is correct
43 Correct 166 ms 24172 KB Output is correct
44 Correct 1 ms 24172 KB Output is correct
45 Correct 2 ms 24172 KB Output is correct
46 Correct 1 ms 24172 KB Output is correct
47 Correct 1 ms 24172 KB Output is correct
48 Correct 2 ms 24172 KB Output is correct
49 Correct 1 ms 24172 KB Output is correct
50 Correct 1 ms 24172 KB Output is correct
51 Correct 2 ms 24172 KB Output is correct
52 Correct 1 ms 24172 KB Output is correct
53 Correct 1 ms 24172 KB Output is correct
54 Correct 1 ms 24172 KB Output is correct
55 Correct 1 ms 24172 KB Output is correct
56 Correct 1 ms 24172 KB Output is correct
57 Correct 1 ms 24172 KB Output is correct
58 Correct 1 ms 24172 KB Output is correct
59 Correct 1 ms 24172 KB Output is correct
60 Correct 1 ms 24172 KB Output is correct
61 Correct 2 ms 24172 KB Output is correct
62 Correct 1 ms 24172 KB Output is correct
63 Correct 2 ms 24172 KB Output is correct
64 Correct 180 ms 24172 KB Output is correct
65 Correct 191 ms 24172 KB Output is correct
66 Correct 166 ms 30840 KB Output is correct
67 Correct 209 ms 37652 KB Output is correct
68 Correct 17 ms 37652 KB Output is correct
69 Correct 17 ms 37652 KB Output is correct
70 Correct 16 ms 37652 KB Output is correct
71 Correct 16 ms 37652 KB Output is correct
72 Correct 16 ms 37652 KB Output is correct
73 Correct 28 ms 37652 KB Output is correct
74 Correct 158 ms 47932 KB Output is correct
75 Correct 194 ms 54664 KB Output is correct
76 Correct 162 ms 61404 KB Output is correct
77 Correct 178 ms 68092 KB Output is correct
78 Correct 161 ms 74892 KB Output is correct
79 Correct 161 ms 81636 KB Output is correct
80 Correct 148 ms 88436 KB Output is correct
81 Correct 152 ms 95128 KB Output is correct
82 Correct 152 ms 101868 KB Output is correct
83 Correct 163 ms 108596 KB Output is correct
84 Correct 170 ms 115268 KB Output is correct
85 Correct 173 ms 122112 KB Output is correct
86 Correct 161 ms 128800 KB Output is correct
87 Correct 182 ms 135544 KB Output is correct
88 Correct 169 ms 142336 KB Output is correct
89 Correct 164 ms 149080 KB Output is correct
90 Correct 162 ms 155812 KB Output is correct
91 Correct 169 ms 162480 KB Output is correct
92 Correct 224 ms 169312 KB Output is correct