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Submission #125064

# Submission time Handle Problem Language Result Execution time Memory
125064 2019-07-04T14:07:52 Z nvmdava Ancient Books (IOI17_books) C++17
100 / 100
 165 ms 8440 KB 
#include <bits/stdc++.h>
using namespace std;
long long res;
 
inline void push(int& l, int& r, int& mn, int& mx, vector<int>& p){
   while(l != mn || r != mx){
      if(l != mn){
         l--;
         mn = min(mn, p[l]);
         mx = max(mx, p[l]);
      } else {
         r++;
         mn = min(mn, p[r]);
         mx = max(mx, p[r]);
      }
   }
}
long long minimum_walk(vector<int> p, int s){
   int L = 0, R = p.size() - 1;
   while(R >= 0 && p[R] == R) R--;
   if(R == -1) return 0;
   while(p[L] == L) L++;
 
   if(s > R){
      res += (s - R) << 1;
      s = R;
   }
   if(s < L){
      res += (L - s) << 1;
      s = L;
   }
 
   int tmn = s, tmx = s;
   for(int i = L; i <= R; i++){
      res += abs(p[i] - i);
      if(1LL * (tmx - p[i]) * (tmx - i) <= 0 || 1LL * (tmn - p[i]) * (tmn - i) <= 0){
         tmx = max(tmx, max(i, p[i]));
         tmn = min(tmn, min(i, p[i]));
      }
   }
   int l, r, mn = min(s, p[s]), mx = max(s, p[s]);
   l = r = s;
   push(l, r, tmn, tmx, p);
 
   l = r = s;
   push(l, r, mn, mx, p);
 
   while(mn != tmn || mx != tmx){
      res += 2;
      if(mn != tmn)mn--;
      if(mx != tmx)mx++;
      push(l, r, mn, mx, p);
   }
   for(; l >= L; l--){
      if(mn > l) res += 2;
      mn = min(mn, p[l]);
   }
   for(; r <= R; r++){
      if(mx < r) res += 2;
      mx = max(mx, p[r]);
   }
   return res;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 480 KB Output is correct
22 Correct 2 ms 308 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 480 KB Output is correct
22 Correct 2 ms 308 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 165 ms 8312 KB Output is correct
31 Correct 165 ms 8296 KB Output is correct
32 Correct 133 ms 8288 KB Output is correct
33 Correct 141 ms 8284 KB Output is correct
34 Correct 141 ms 8288 KB Output is correct
35 Correct 142 ms 8312 KB Output is correct
36 Correct 141 ms 8312 KB Output is correct
37 Correct 143 ms 8296 KB Output is correct
38 Correct 147 ms 8440 KB Output is correct
39 Correct 147 ms 8336 KB Output is correct
40 Correct 152 ms 8328 KB Output is correct
41 Correct 160 ms 8312 KB Output is correct
42 Correct 157 ms 8328 KB Output is correct
43 Correct 147 ms 8292 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 252 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 400 KB Output is correct
20 Correct 2 ms 376 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 480 KB Output is correct
22 Correct 2 ms 308 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 165 ms 8312 KB Output is correct
31 Correct 165 ms 8296 KB Output is correct
32 Correct 133 ms 8288 KB Output is correct
33 Correct 141 ms 8284 KB Output is correct
34 Correct 141 ms 8288 KB Output is correct
35 Correct 142 ms 8312 KB Output is correct
36 Correct 141 ms 8312 KB Output is correct
37 Correct 143 ms 8296 KB Output is correct
38 Correct 147 ms 8440 KB Output is correct
39 Correct 147 ms 8336 KB Output is correct
40 Correct 152 ms 8328 KB Output is correct
41 Correct 160 ms 8312 KB Output is correct
42 Correct 157 ms 8328 KB Output is correct
43 Correct 147 ms 8292 KB Output is correct
44 Correct 2 ms 256 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 256 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 2 ms 256 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 256 KB Output is correct
54 Correct 2 ms 252 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 252 KB Output is correct
59 Correct 2 ms 256 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 256 KB Output is correct
62 Correct 2 ms 400 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 141 ms 8320 KB Output is correct
65 Correct 139 ms 8312 KB Output is correct
66 Correct 147 ms 8284 KB Output is correct
67 Correct 148 ms 8312 KB Output is correct
68 Correct 17 ms 1144 KB Output is correct
69 Correct 16 ms 1144 KB Output is correct
70 Correct 19 ms 1272 KB Output is correct
71 Correct 17 ms 1272 KB Output is correct
72 Correct 16 ms 1144 KB Output is correct
73 Correct 16 ms 1272 KB Output is correct
74 Correct 142 ms 8284 KB Output is correct
75 Correct 141 ms 8312 KB Output is correct
76 Correct 142 ms 8300 KB Output is correct
77 Correct 142 ms 8312 KB Output is correct
78 Correct 140 ms 8344 KB Output is correct
79 Correct 143 ms 8312 KB Output is correct
80 Correct 139 ms 8312 KB Output is correct
81 Correct 142 ms 8440 KB Output is correct
82 Correct 140 ms 8352 KB Output is correct
83 Correct 143 ms 8352 KB Output is correct
84 Correct 145 ms 8252 KB Output is correct
85 Correct 143 ms 8348 KB Output is correct
86 Correct 145 ms 8344 KB Output is correct
87 Correct 156 ms 8344 KB Output is correct
88 Correct 149 ms 8288 KB Output is correct
89 Correct 145 ms 8272 KB Output is correct
90 Correct 147 ms 8344 KB Output is correct
91 Correct 149 ms 8312 KB Output is correct
92 Correct 155 ms 8284 KB Output is correct