oj.uz

Submission #297037

# Submission time Handle Problem Language Result Execution time Memory
297037 2020-09-11T08:09:46 Z shayan_p Ancient Books (IOI17_books) C++17
100 / 100
 196 ms 18872 KB 
#include<bits/stdc++.h>
#include "books.h"
     
#define F first
#define S second
#define PB push_back
#define sz(s) (int(s.size()))
#define bit(n, k) (((n)>>(k))&1)
     
using namespace std;
     
typedef long long ll;
typedef pair<int, int> pii;
     
const int maxn = 1e6 + 10;
     
int cnt[maxn];
     
ll minimum_walk(vector<int> p, int s){
    int n = sz(p);
        
    int MN = s, MX = s;
    ll ans = 0;
    for(int i = 0; i < n; i++){
    	ans+= abs(p[i] - i);
    	cnt[min(i, p[i])]++;
    	cnt[max(i, p[i])]--;
    }
    int l = s, r = s;

    auto forw = [&]{
		    MX = max(MX, p[r]);
		    MN = min(MN, p[r]);
		    r++;
		};
    auto backw = [&]{
		     MN = min(MN, p[l]);
		     MX = max(MX, p[l]);
		     l--;
		 };
    auto go = [&](){
    		  while(true){
    		      bool is = 0;
    		      while(r < n && r <= MX)			  
    			  forw(), is = 1;
    		      while(l >= 0 && l >= MN)
    			  backw(), is = 1;
    		      if(!is)
    			  break;
    		  }
    	      };
    int L = -1, R = n;
    int lst = -1;
    int sm = 0;
    for(int i = 0; i < n; i++){
    	sm+= cnt[i];
    	if(sm == 0){
    	    if(i != n-1)
    		ans+= 2;
    	    if(lst < s && s <= i)
    		L = lst, R = i+1;
    	    lst = i;
    	}	
    }
     
    go();
    while(L < l || r < R){
    	ans+= 2;
	backw(), forw();
    	go();
    }
    for(int i = 0; i < s && p[i] == i; i++){
    	ans-= 2;
    }
    for(int i = n-1; i > s && p[i] == i; i--){
    	ans-= 2;
    }
    return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 195 ms 12408 KB Output is correct
31 Correct 196 ms 12408 KB Output is correct
32 Correct 164 ms 12408 KB Output is correct
33 Correct 172 ms 12408 KB Output is correct
34 Correct 168 ms 12408 KB Output is correct
35 Correct 166 ms 12408 KB Output is correct
36 Correct 164 ms 12408 KB Output is correct
37 Correct 166 ms 12408 KB Output is correct
38 Correct 173 ms 12404 KB Output is correct
39 Correct 169 ms 12404 KB Output is correct
40 Correct 176 ms 12412 KB Output is correct
41 Correct 182 ms 12408 KB Output is correct
42 Correct 177 ms 12408 KB Output is correct
43 Correct 164 ms 12408 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 372 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 195 ms 12408 KB Output is correct
31 Correct 196 ms 12408 KB Output is correct
32 Correct 164 ms 12408 KB Output is correct
33 Correct 172 ms 12408 KB Output is correct
34 Correct 168 ms 12408 KB Output is correct
35 Correct 166 ms 12408 KB Output is correct
36 Correct 164 ms 12408 KB Output is correct
37 Correct 166 ms 12408 KB Output is correct
38 Correct 173 ms 12404 KB Output is correct
39 Correct 169 ms 12404 KB Output is correct
40 Correct 176 ms 12412 KB Output is correct
41 Correct 182 ms 12408 KB Output is correct
42 Correct 177 ms 12408 KB Output is correct
43 Correct 164 ms 12408 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 1 ms 384 KB Output is correct
55 Correct 1 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 372 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 256 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 168 ms 18808 KB Output is correct
65 Correct 178 ms 18736 KB Output is correct
66 Correct 196 ms 18808 KB Output is correct
67 Correct 180 ms 18808 KB Output is correct
68 Correct 17 ms 2048 KB Output is correct
69 Correct 17 ms 2048 KB Output is correct
70 Correct 17 ms 2048 KB Output is correct
71 Correct 16 ms 2048 KB Output is correct
72 Correct 16 ms 2048 KB Output is correct
73 Correct 18 ms 2048 KB Output is correct
74 Correct 168 ms 18808 KB Output is correct
75 Correct 180 ms 18808 KB Output is correct
76 Correct 167 ms 18808 KB Output is correct
77 Correct 173 ms 18808 KB Output is correct
78 Correct 171 ms 18872 KB Output is correct
79 Correct 172 ms 18808 KB Output is correct
80 Correct 172 ms 18808 KB Output is correct
81 Correct 173 ms 18808 KB Output is correct
82 Correct 163 ms 18808 KB Output is correct
83 Correct 171 ms 18808 KB Output is correct
84 Correct 169 ms 18808 KB Output is correct
85 Correct 175 ms 18808 KB Output is correct
86 Correct 172 ms 18736 KB Output is correct
87 Correct 175 ms 18808 KB Output is correct
88 Correct 176 ms 18808 KB Output is correct
89 Correct 170 ms 18808 KB Output is correct
90 Correct 172 ms 18808 KB Output is correct
91 Correct 181 ms 18808 KB Output is correct
92 Correct 185 ms 18808 KB Output is correct