oj.uz

Submission #963463

# Submission time Handle Problem Language Result Execution time Memory
963463 2024-04-15T04:47:04 Z The_Samurai Combo (IOI18_combo) C++17
30 / 100
 51 ms 600 KB 
#include "combo.h"
#include "bits/stdc++.h"
using namespace std;

random_device rd;
mt19937_64 rng(rd());

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 = 0;
  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:9:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |   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 1 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 Correct 0 ms 344 KB Output is correct
6 Correct 1 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 596 KB Output is correct
13 Correct 1 ms 500 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 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 432 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 540 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 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 Partially correct 0 ms 344 KB Output is partially correct
2 Correct 0 ms 344 KB Output is correct
3 Partially correct 0 ms 344 KB Output is partially correct
4 Partially correct 1 ms 344 KB Output is partially correct
5 Partially correct 0 ms 344 KB Output is partially correct
6 Partially correct 0 ms 344 KB Output is partially correct
7 Partially correct 0 ms 344 KB Output is partially correct
8 Partially correct 1 ms 340 KB Output is partially correct
9 Correct 0 ms 344 KB Output is correct
10 Partially correct 1 ms 344 KB Output is partially correct
11 Correct 1 ms 596 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Partially correct 0 ms 344 KB Output is partially correct
14 Partially correct 1 ms 344 KB Output is partially correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 48 ms 344 KB Output is correct
18 Correct 46 ms 344 KB Output is correct
19 Correct 49 ms 344 KB Output is correct
20 Correct 46 ms 344 KB Output is correct
21 Correct 47 ms 344 KB Output is correct
22 Partially correct 1 ms 340 KB Output is partially correct
23 Correct 1 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 344 KB Output is correct
28 Partially correct 1 ms 344 KB Output is partially correct
29 Correct 1 ms 344 KB Output is correct
30 Partially correct 2 ms 344 KB Output is partially correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 48 ms 344 KB Output is correct
33 Partially correct 49 ms 340 KB Output is partially correct
34 Partially correct 48 ms 344 KB Output is partially correct
35 Partially correct 46 ms 344 KB Output is partially correct
36 Correct 47 ms 344 KB Output is correct
37 Partially correct 49 ms 344 KB Output is partially correct
38 Correct 46 ms 344 KB Output is correct
39 Correct 47 ms 344 KB Output is correct
40 Correct 47 ms 344 KB Output is correct
41 Correct 47 ms 344 KB Output is correct
42 Partially correct 47 ms 344 KB Output is partially correct
43 Correct 48 ms 344 KB Output is correct
44 Partially correct 47 ms 344 KB Output is partially correct
45 Correct 46 ms 344 KB Output is correct
46 Partially correct 48 ms 344 KB Output is partially correct
47 Partially correct 49 ms 344 KB Output is partially correct
48 Correct 47 ms 344 KB Output is correct
49 Correct 46 ms 344 KB Output is correct
50 Correct 46 ms 344 KB Output is correct
51 Correct 48 ms 344 KB Output is correct
52 Partially correct 48 ms 344 KB Output is partially correct
53 Correct 47 ms 344 KB Output is correct
54 Correct 47 ms 344 KB Output is correct
55 Partially correct 49 ms 344 KB Output is partially correct
56 Partially correct 46 ms 340 KB Output is partially correct
57 Correct 46 ms 344 KB Output is correct
58 Partially correct 51 ms 344 KB Output is partially correct
59 Correct 44 ms 344 KB Output is correct
60 Correct 49 ms 344 KB Output is correct
61 Partially correct 47 ms 344 KB Output is partially correct
62 Correct 46 ms 344 KB Output is correct
63 Correct 47 ms 344 KB Output is correct
64 Correct 47 ms 344 KB Output is correct
65 Partially correct 47 ms 344 KB Output is partially correct
66 Partially correct 48 ms 344 KB Output is partially correct
67 Correct 47 ms 344 KB Output is correct
68 Partially correct 48 ms 344 KB Output is partially correct
69 Partially correct 50 ms 344 KB Output is partially correct
70 Partially correct 46 ms 344 KB Output is partially correct
71 Partially correct 46 ms 344 KB Output is partially correct
72 Partially correct 48 ms 344 KB Output is partially correct
73 Correct 46 ms 344 KB Output is correct
74 Correct 49 ms 344 KB Output is correct
75 Correct 47 ms 344 KB Output is correct
76 Partially correct 46 ms 344 KB Output is partially correct
77 Partially correct 47 ms 344 KB Output is partially correct
78 Correct 0 ms 344 KB Output is correct
79 Partially correct 1 ms 344 KB Output is partially correct
80 Partially correct 1 ms 344 KB Output is partially correct
81 Partially correct 1 ms 344 KB Output is partially correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Partially correct 1 ms 432 KB Output is partially correct
85 Partially correct 1 ms 344 KB Output is partially correct
86 Partially correct 1 ms 344 KB Output is partially correct
87 Correct 1 ms 596 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Partially correct 1 ms 344 KB Output is partially correct
92 Partially correct 1 ms 344 KB Output is partially correct
93 Partially correct 0 ms 344 KB Output is partially correct
94 Partially correct 1 ms 436 KB Output is partially correct
95 Correct 1 ms 344 KB Output is correct
96 Partially correct 1 ms 344 KB Output is partially correct
97 Partially correct 1 ms 344 KB Output is partially correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 0 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 Partially correct 1 ms 344 KB Output is partially correct
103 Correct 0 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 Correct 0 ms 344 KB Output is correct
109 Partially correct 0 ms 344 KB Output is partially correct
110 Partially correct 1 ms 344 KB Output is partially correct
111 Partially correct 1 ms 344 KB Output is partially correct
112 Partially correct 0 ms 344 KB Output is partially correct
113 Correct 0 ms 344 KB Output is correct
114 Partially correct 0 ms 344 KB Output is partially correct
115 Partially correct 0 ms 344 KB Output is partially correct
116 Partially correct 0 ms 344 KB Output is partially correct
117 Correct 0 ms 344 KB Output is correct
118 Partially correct 1 ms 600 KB Output is partially correct
119 Correct 0 ms 344 KB Output is correct
120 Partially correct 0 ms 344 KB Output is partially correct
121 Partially correct 1 ms 344 KB Output is partially correct
122 Partially correct 1 ms 344 KB Output is partially correct
123 Partially correct 1 ms 344 KB Output is partially correct