oj.uz

Submission #243591

# Submission time Handle Problem Language Result Execution time Memory
243591 2020-07-01T11:20:29 Z AlexPop28 The Big Prize (IOI17_prize) C++11
100 / 100
 65 ms 680 KB 
#include <bits/stdc++.h>
#include "prize.h"

#define dbg(...) fprintf(stderr, __VA_ARGS__)

using namespace std;

map<int, map<int, int>> memo;

pair<int, int> Ask(int pos) {
  auto ans = ask(pos);
  return make_pair(ans[0], ans[1]);
}

int Solve(int left, int right) {
  if (left > right) {
    return -1;
  }
  
  int mid = left + (right - left) / 2;
  auto ans = Ask(mid);
  int color = ans.first + ans.second;
  memo[color][mid] = ans.first;
  
  // dbg("l = %d r = %d m = %d\n", left, right, mid);
  
  if (color == 0) {
    return mid;
  }
  
  auto it = memo[color].upper_bound(mid);
  if (it == memo[color].end() || ans.first != it->second) {
    int aux = Solve(mid + 1, right);
    if (aux != -1) return aux;
  }
  it = memo[color].lower_bound(mid);
  if (it == memo[color].begin() || ans.first != prev(it)->second) {
    int aux = Solve(left, mid - 1);
    if (aux != -1) return aux;
  }
  return -1;
}

int find_best(int n) {
  return Solve(0, n - 1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 404 KB Output is correct
9 Correct 5 ms 360 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 6 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 7 ms 376 KB Output is correct
12 Correct 11 ms 376 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 11 ms 384 KB Output is correct
15 Correct 55 ms 504 KB Output is correct
16 Correct 14 ms 384 KB Output is correct
17 Correct 30 ms 596 KB Output is correct
18 Correct 5 ms 256 KB Output is correct
19 Correct 52 ms 472 KB Output is correct
20 Correct 20 ms 384 KB Output is correct
21 Correct 39 ms 504 KB Output is correct
22 Correct 21 ms 496 KB Output is correct
23 Correct 6 ms 384 KB Output is correct
24 Correct 8 ms 384 KB Output is correct
25 Correct 28 ms 488 KB Output is correct
26 Correct 35 ms 376 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 7 ms 524 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 62 ms 504 KB Output is correct
32 Correct 6 ms 392 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 49 ms 488 KB Output is correct
35 Correct 6 ms 256 KB Output is correct
36 Correct 41 ms 504 KB Output is correct
37 Correct 6 ms 404 KB Output is correct
38 Correct 7 ms 256 KB Output is correct
39 Correct 29 ms 504 KB Output is correct
40 Correct 5 ms 256 KB Output is correct
41 Correct 28 ms 376 KB Output is correct
42 Correct 24 ms 384 KB Output is correct
43 Correct 33 ms 404 KB Output is correct
44 Correct 23 ms 508 KB Output is correct
45 Correct 32 ms 620 KB Output is correct
46 Correct 65 ms 636 KB Output is correct
47 Correct 34 ms 384 KB Output is correct
48 Correct 24 ms 376 KB Output is correct
49 Correct 37 ms 668 KB Output is correct
50 Correct 5 ms 256 KB Output is correct
51 Correct 25 ms 384 KB Output is correct
52 Correct 44 ms 504 KB Output is correct
53 Correct 5 ms 256 KB Output is correct
54 Correct 40 ms 396 KB Output is correct
55 Correct 47 ms 536 KB Output is correct
56 Correct 6 ms 304 KB Output is correct
57 Correct 17 ms 384 KB Output is correct
58 Correct 16 ms 376 KB Output is correct
59 Correct 31 ms 384 KB Output is correct
60 Correct 20 ms 384 KB Output is correct
61 Correct 5 ms 384 KB Output is correct
62 Correct 6 ms 256 KB Output is correct
63 Correct 5 ms 384 KB Output is correct
64 Correct 6 ms 256 KB Output is correct
65 Correct 5 ms 256 KB Output is correct
66 Correct 5 ms 256 KB Output is correct
67 Correct 5 ms 256 KB Output is correct
68 Correct 5 ms 308 KB Output is correct
69 Correct 6 ms 256 KB Output is correct
70 Correct 5 ms 256 KB Output is correct
71 Correct 61 ms 540 KB Output is correct
72 Correct 9 ms 384 KB Output is correct
73 Correct 62 ms 680 KB Output is correct
74 Correct 64 ms 508 KB Output is correct
75 Correct 7 ms 256 KB Output is correct
76 Correct 43 ms 504 KB Output is correct
77 Correct 49 ms 504 KB Output is correct
78 Correct 10 ms 384 KB Output is correct
79 Correct 34 ms 384 KB Output is correct
80 Correct 51 ms 504 KB Output is correct
81 Correct 46 ms 504 KB Output is correct
82 Correct 47 ms 504 KB Output is correct
83 Correct 6 ms 384 KB Output is correct
84 Correct 41 ms 504 KB Output is correct
85 Correct 37 ms 504 KB Output is correct
86 Correct 13 ms 384 KB Output is correct
87 Correct 7 ms 256 KB Output is correct
88 Correct 11 ms 384 KB Output is correct
89 Correct 10 ms 384 KB Output is correct
90 Correct 6 ms 256 KB Output is correct
91 Correct 8 ms 380 KB Output is correct
92 Correct 5 ms 512 KB Output is correct
93 Correct 9 ms 384 KB Output is correct
94 Correct 8 ms 384 KB Output is correct
95 Correct 10 ms 384 KB Output is correct
96 Correct 8 ms 384 KB Output is correct
97 Correct 5 ms 256 KB Output is correct