oj.uz

Submission #963461

# Submission time Handle Problem Language Result Execution time Memory
963461 2024-04-15T04:21:29 Z The_Samurai Combo (IOI18_combo) C++17
30 / 100
 52 ms 596 KB 
#include "combo.h"
#include "bits/stdc++.h"
using namespace std;

mt19937_64 rng(513412);

void shuffle(string &s) {
  for (int i = 1; i < s.size(); i++) swap(s[rng() % (i + 1)], s[i]);
}

string guess_sequence(int n) {
  string ans(n, '#'), s = "ABXY";
  vector can(vector(n, vector(4, '#')));
  for (int i = 0; i < n; i++) for (int j = 0; j < 4; j++) can[i][j] = s[j];
  auto get = [&](int i) -> char {
    return can[i][rng() % can[i].size()];
  };
  auto remove = [&](int i, char x) -> void {
    can[i].erase(find(can[i].begin(), can[i].end(), x));
  };
  for (int i = 0; i < 3; i++) {
    string t = ""; t += get(0);
    if (press(t)) {
      ans[0] = t[0];
      break;
    }
    remove(0, t[0]);
  }
  if (ans[0] == '#') ans[0] = get(0);
  for (int i = 1; i < n; i++) remove(i, ans[0]);
  int unknown = 1;
  while (unknown < n) {
    for (int i = unknown; i < n; i++) ans[i] = get(i);
    unknown = press(ans);
    if (unknown == n) break;
    remove(unknown, ans[unknown]);
  }
  return ans;
}

Compilation message

combo.cpp: In function 'void shuffle(std::string&)':
combo.cpp:8:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |   for (int i = 1; i < s.size(); i++) swap(s[rng() % (i + 1)], s[i]);
      |                   ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 352 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct

Subtask #2
25.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Partially correct 1 ms 344 KB Output is partially correct
6 Partially correct 1 ms 344 KB Output is partially correct
7 Correct 1 ms 344 KB Output is correct
8 Partially correct 0 ms 596 KB Output is partially correct
9 Partially correct 1 ms 344 KB Output is partially correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Partially correct 0 ms 344 KB Output is partially correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Partially correct 47 ms 344 KB Output is partially correct
18 Correct 46 ms 344 KB Output is correct
19 Partially correct 49 ms 344 KB Output is partially correct
20 Partially correct 47 ms 344 KB Output is partially correct
21 Partially correct 47 ms 344 KB Output is partially correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Partially correct 1 ms 344 KB Output is partially correct
25 Partially correct 1 ms 344 KB Output is partially correct
26 Partially correct 1 ms 344 KB Output is partially correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Partially correct 1 ms 344 KB Output is partially correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 47 ms 344 KB Output is correct
33 Partially correct 49 ms 344 KB Output is partially correct
34 Partially correct 46 ms 344 KB Output is partially correct
35 Partially correct 49 ms 344 KB Output is partially correct
36 Correct 46 ms 344 KB Output is correct
37 Partially correct 47 ms 344 KB Output is partially correct
38 Partially correct 47 ms 344 KB Output is partially correct
39 Partially correct 48 ms 344 KB Output is partially correct
40 Partially correct 46 ms 344 KB Output is partially correct
41 Partially correct 48 ms 344 KB Output is partially correct
42 Correct 48 ms 504 KB Output is correct
43 Correct 47 ms 344 KB Output is correct
44 Correct 49 ms 344 KB Output is correct
45 Correct 46 ms 344 KB Output is correct
46 Partially correct 47 ms 344 KB Output is partially correct
47 Correct 46 ms 344 KB Output is correct
48 Correct 45 ms 344 KB Output is correct
49 Correct 48 ms 344 KB Output is correct
50 Partially correct 50 ms 344 KB Output is partially correct
51 Correct 46 ms 344 KB Output is correct
52 Partially correct 47 ms 344 KB Output is partially correct
53 Correct 48 ms 344 KB Output is correct
54 Correct 47 ms 344 KB Output is correct
55 Correct 47 ms 344 KB Output is correct
56 Correct 48 ms 344 KB Output is correct
57 Partially correct 48 ms 344 KB Output is partially correct
58 Correct 49 ms 344 KB Output is correct
59 Partially correct 49 ms 344 KB Output is partially correct
60 Partially correct 47 ms 344 KB Output is partially correct
61 Correct 46 ms 344 KB Output is correct
62 Partially correct 47 ms 344 KB Output is partially correct
63 Partially correct 50 ms 344 KB Output is partially correct
64 Partially correct 47 ms 344 KB Output is partially correct
65 Partially correct 46 ms 344 KB Output is partially correct
66 Correct 49 ms 344 KB Output is correct
67 Correct 47 ms 344 KB Output is correct
68 Partially correct 52 ms 344 KB Output is partially correct
69 Partially correct 51 ms 344 KB Output is partially correct
70 Partially correct 49 ms 344 KB Output is partially correct
71 Correct 49 ms 344 KB Output is correct
72 Correct 45 ms 344 KB Output is correct
73 Partially correct 50 ms 344 KB Output is partially correct
74 Correct 47 ms 344 KB Output is correct
75 Partially correct 50 ms 344 KB Output is partially correct
76 Correct 49 ms 344 KB Output is correct
77 Correct 48 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Partially correct 1 ms 344 KB Output is partially correct
80 Correct 1 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 1 ms 344 KB Output is correct
83 Partially correct 0 ms 344 KB Output is partially correct
84 Correct 1 ms 436 KB Output is correct
85 Partially correct 0 ms 344 KB Output is partially correct
86 Correct 1 ms 344 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Partially correct 0 ms 344 KB Output is partially correct
89 Correct 0 ms 344 KB Output is correct
90 Partially correct 0 ms 344 KB Output is partially correct
91 Partially correct 1 ms 344 KB Output is partially correct
92 Correct 0 ms 344 KB Output is correct
93 Correct 0 ms 344 KB Output is correct
94 Correct 1 ms 436 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Correct 0 ms 344 KB Output is correct
98 Partially correct 1 ms 344 KB Output is partially correct
99 Correct 1 ms 344 KB Output is correct
100 Partially correct 1 ms 344 KB Output is partially correct
101 Partially correct 1 ms 344 KB Output is partially correct
102 Correct 1 ms 344 KB Output is correct
103 Correct 1 ms 344 KB Output is correct
104 Correct 1 ms 344 KB Output is correct
105 Correct 1 ms 440 KB Output is correct
106 Partially correct 0 ms 344 KB Output is partially correct
107 Partially correct 1 ms 344 KB Output is partially correct
108 Partially correct 1 ms 344 KB Output is partially correct
109 Correct 1 ms 344 KB Output is correct
110 Partially correct 0 ms 344 KB Output is partially correct
111 Correct 1 ms 344 KB Output is correct
112 Partially correct 0 ms 344 KB Output is partially correct
113 Partially correct 1 ms 344 KB Output is partially correct
114 Correct 0 ms 344 KB Output is correct
115 Correct 0 ms 344 KB Output is correct
116 Partially correct 1 ms 344 KB Output is partially correct
117 Partially correct 1 ms 344 KB Output is partially correct
118 Correct 1 ms 444 KB Output is correct
119 Partially correct 0 ms 344 KB Output is partially correct
120 Partially correct 1 ms 344 KB Output is partially correct
121 Partially correct 1 ms 344 KB Output is partially correct
122 Correct 1 ms 596 KB Output is correct
123 Correct 1 ms 344 KB Output is correct