oj.uz

Submission #122101

# Submission time Handle Problem Language Result Execution time Memory
122101 2019-06-27T14:38:17 Z nvmdava Ancient Books (IOI17_books) C++17
100 / 100
 145 ms 8264 KB 
#include <bits/stdc++.h>
#pragma optimization("unroll-loops")
#pragma optimization("Ofast")
#pragma target("avx2")
using namespace std;
long long res;

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;
}

Compilation message

books.cpp:2:0: warning: ignoring #pragma optimization  [-Wunknown-pragmas]
 #pragma optimization("unroll-loops")
 
books.cpp:3:0: warning: ignoring #pragma optimization  [-Wunknown-pragmas]
 #pragma optimization("Ofast")
 
books.cpp:4:0: warning: ignoring #pragma target  [-Wunknown-pragmas]
 #pragma target("avx2")

Subtask #1
12.0 / 12.0

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

Subtask #2
10.0 / 10.0

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

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 140 ms 8248 KB Output is correct
31 Correct 145 ms 8192 KB Output is correct
32 Correct 121 ms 8184 KB Output is correct
33 Correct 116 ms 8184 KB Output is correct
34 Correct 118 ms 8184 KB Output is correct
35 Correct 117 ms 8120 KB Output is correct
36 Correct 121 ms 8184 KB Output is correct
37 Correct 122 ms 8184 KB Output is correct
38 Correct 125 ms 8184 KB Output is correct
39 Correct 122 ms 8184 KB Output is correct
40 Correct 126 ms 8184 KB Output is correct
41 Correct 132 ms 8184 KB Output is correct
42 Correct 130 ms 8184 KB Output is correct
43 Correct 123 ms 8184 KB Output is correct

Subtask #4
20.0 / 20.0

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

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 140 ms 8248 KB Output is correct
31 Correct 145 ms 8192 KB Output is correct
32 Correct 121 ms 8184 KB Output is correct
33 Correct 116 ms 8184 KB Output is correct
34 Correct 118 ms 8184 KB Output is correct
35 Correct 117 ms 8120 KB Output is correct
36 Correct 121 ms 8184 KB Output is correct
37 Correct 122 ms 8184 KB Output is correct
38 Correct 125 ms 8184 KB Output is correct
39 Correct 122 ms 8184 KB Output is correct
40 Correct 126 ms 8184 KB Output is correct
41 Correct 132 ms 8184 KB Output is correct
42 Correct 130 ms 8184 KB Output is correct
43 Correct 123 ms 8184 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 2 ms 256 KB Output is correct
46 Correct 2 ms 384 KB Output is correct
47 Correct 2 ms 384 KB Output is correct
48 Correct 2 ms 256 KB Output is correct
49 Correct 2 ms 384 KB Output is correct
50 Correct 2 ms 256 KB Output is correct
51 Correct 2 ms 256 KB Output is correct
52 Correct 2 ms 384 KB Output is correct
53 Correct 2 ms 256 KB Output is correct
54 Correct 2 ms 384 KB Output is correct
55 Correct 2 ms 256 KB Output is correct
56 Correct 2 ms 256 KB Output is correct
57 Correct 2 ms 256 KB Output is correct
58 Correct 2 ms 384 KB Output is correct
59 Correct 2 ms 256 KB Output is correct
60 Correct 2 ms 256 KB Output is correct
61 Correct 2 ms 256 KB Output is correct
62 Correct 2 ms 256 KB Output is correct
63 Correct 2 ms 256 KB Output is correct
64 Correct 123 ms 8120 KB Output is correct
65 Correct 117 ms 8120 KB Output is correct
66 Correct 125 ms 8248 KB Output is correct
67 Correct 127 ms 8120 KB Output is correct
68 Correct 14 ms 1152 KB Output is correct
69 Correct 14 ms 1152 KB Output is correct
70 Correct 13 ms 1152 KB Output is correct
71 Correct 13 ms 1152 KB Output is correct
72 Correct 14 ms 1152 KB Output is correct
73 Correct 15 ms 1152 KB Output is correct
74 Correct 116 ms 8124 KB Output is correct
75 Correct 117 ms 8264 KB Output is correct
76 Correct 121 ms 8128 KB Output is correct
77 Correct 124 ms 8136 KB Output is correct
78 Correct 123 ms 8120 KB Output is correct
79 Correct 119 ms 8184 KB Output is correct
80 Correct 110 ms 8124 KB Output is correct
81 Correct 119 ms 8124 KB Output is correct
82 Correct 120 ms 8184 KB Output is correct
83 Correct 124 ms 8156 KB Output is correct
84 Correct 122 ms 8124 KB Output is correct
85 Correct 122 ms 8184 KB Output is correct
86 Correct 125 ms 8124 KB Output is correct
87 Correct 134 ms 8184 KB Output is correct
88 Correct 128 ms 8184 KB Output is correct
89 Correct 127 ms 8128 KB Output is correct
90 Correct 127 ms 8136 KB Output is correct
91 Correct 128 ms 8124 KB Output is correct
92 Correct 137 ms 8120 KB Output is correct