oj.uz

Submission #545838

# Submission time Handle Problem Language Result Execution time Memory
545838 2022-04-05T14:36:08 Z Sergio_2357 Combo (IOI18_combo) C++17
100 / 100
 39 ms 660 KB 
#include "combo.h"
#include <bits/stdc++.h>

using namespace std;

char get_f_l()
{
    char a, b, c, d;
    a = 'A';
    b = 'B';
    c = 'X';
    d = 'Y';
    if (press({ a, b })) {
        if (press({ a }))
            return a;
        else
            return b;
    } else {
        if (press({ c }))
            return c;
        else
            return d;
    }
}

void assign_chars(char f, char& a, char& b, char& c)
{
    string s = "ABXY";
    int d = 0;
    while (f != s[d])
        d++;
    string r = "";
    for (int i = 0; i < 4; i++) {
        if (i == d)
            continue;
        r.push_back(s[i]);
    }
    a = r[0];
    b = r[1];
    c = r[2];
}

void swap_c(char& a, char& b, char& c)
{
    string s = { a, b, c };
    random_shuffle(s.begin(), s.end());
    a = s[0];
    b = s[1];
    c = s[2];
}

string gen_q(string s, char a, char b, char c, int n)
{
    vector<string> qs = {
        { a }, { b, a }, { b, b }, { b, c }
    };
    string res = "";
    for (int i = 0; i < qs.size(); i++)
        res += s + qs[i];
    return res;
}

string guess_sequence(int N)
{
    srand(chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count());
    //Pseudocode:
    char f_l = get_f_l();
    string s = "";
    s.push_back(f_l);
    if (N == 1)
        return s;
    char a, b, c;
    assign_chars(f_l, a, b, c);
    while (s.size() < N - 1) {
        // ask for a, ba, bb, bc
        //swap_c(a, b, c);
        string q = gen_q(s, a, b, c, N);
        int r = press(q) - s.size();
        if (r == 0)
            s.push_back(c);
        if (r == 1)
            s.push_back(a);
        if (r == 2)
            s.push_back(b);
    }
    if (press(s + a) - s.size())
        s.push_back(a);
    else if (press(s + b) - s.size())
        s.push_back(b);
    else
        s.push_back(c);
    s.resize(N);
    return s;
}

Compilation message

combo.cpp: In function 'std::string gen_q(std::string, char, char, char, int)':
combo.cpp:58:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for (int i = 0; i < qs.size(); i++)
      |                     ~~^~~~~~~~~~~
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:74:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   74 |     while (s.size() < N - 1) {
      |            ~~~~~~~~~^~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 0 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 208 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 1 ms 208 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 0 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct

Subtask #2
95.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 19 ms 524 KB Output is correct
18 Correct 28 ms 496 KB Output is correct
19 Correct 30 ms 420 KB Output is correct
20 Correct 28 ms 628 KB Output is correct
21 Correct 39 ms 480 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 2 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 2 ms 208 KB Output is correct
27 Correct 1 ms 208 KB Output is correct
28 Correct 3 ms 312 KB Output is correct
29 Correct 1 ms 308 KB Output is correct
30 Correct 2 ms 336 KB Output is correct
31 Correct 3 ms 296 KB Output is correct
32 Correct 31 ms 660 KB Output is correct
33 Correct 23 ms 472 KB Output is correct
34 Correct 18 ms 464 KB Output is correct
35 Correct 34 ms 484 KB Output is correct
36 Correct 28 ms 560 KB Output is correct
37 Correct 27 ms 504 KB Output is correct
38 Correct 26 ms 540 KB Output is correct
39 Correct 33 ms 428 KB Output is correct
40 Correct 28 ms 488 KB Output is correct
41 Correct 20 ms 528 KB Output is correct
42 Correct 32 ms 428 KB Output is correct
43 Correct 24 ms 484 KB Output is correct
44 Correct 31 ms 536 KB Output is correct
45 Correct 26 ms 500 KB Output is correct
46 Correct 23 ms 496 KB Output is correct
47 Correct 27 ms 548 KB Output is correct
48 Correct 27 ms 504 KB Output is correct
49 Correct 25 ms 424 KB Output is correct
50 Correct 26 ms 524 KB Output is correct
51 Correct 28 ms 424 KB Output is correct
52 Correct 36 ms 428 KB Output is correct
53 Correct 17 ms 532 KB Output is correct
54 Correct 24 ms 496 KB Output is correct
55 Correct 28 ms 612 KB Output is correct
56 Correct 26 ms 444 KB Output is correct
57 Correct 21 ms 424 KB Output is correct
58 Correct 28 ms 460 KB Output is correct
59 Correct 34 ms 424 KB Output is correct
60 Correct 21 ms 432 KB Output is correct
61 Correct 21 ms 476 KB Output is correct
62 Correct 21 ms 496 KB Output is correct
63 Correct 32 ms 564 KB Output is correct
64 Correct 14 ms 428 KB Output is correct
65 Correct 26 ms 444 KB Output is correct
66 Correct 25 ms 500 KB Output is correct
67 Correct 35 ms 584 KB Output is correct
68 Correct 33 ms 424 KB Output is correct
69 Correct 24 ms 496 KB Output is correct
70 Correct 27 ms 452 KB Output is correct
71 Correct 33 ms 424 KB Output is correct
72 Correct 22 ms 424 KB Output is correct
73 Correct 29 ms 516 KB Output is correct
74 Correct 26 ms 420 KB Output is correct
75 Correct 26 ms 424 KB Output is correct
76 Correct 29 ms 500 KB Output is correct
77 Correct 25 ms 420 KB Output is correct
78 Correct 0 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 1 ms 208 KB Output is correct
81 Correct 1 ms 208 KB Output is correct
82 Correct 1 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 1 ms 296 KB Output is correct
85 Correct 2 ms 208 KB Output is correct
86 Correct 1 ms 208 KB Output is correct
87 Correct 1 ms 208 KB Output is correct
88 Correct 0 ms 208 KB Output is correct
89 Correct 1 ms 208 KB Output is correct
90 Correct 1 ms 208 KB Output is correct
91 Correct 1 ms 208 KB Output is correct
92 Correct 1 ms 208 KB Output is correct
93 Correct 1 ms 208 KB Output is correct
94 Correct 1 ms 208 KB Output is correct
95 Correct 1 ms 208 KB Output is correct
96 Correct 1 ms 300 KB Output is correct
97 Correct 1 ms 208 KB Output is correct
98 Correct 1 ms 208 KB Output is correct
99 Correct 1 ms 208 KB Output is correct
100 Correct 1 ms 300 KB Output is correct
101 Correct 1 ms 208 KB Output is correct
102 Correct 1 ms 208 KB Output is correct
103 Correct 1 ms 304 KB Output is correct
104 Correct 1 ms 208 KB Output is correct
105 Correct 1 ms 208 KB Output is correct
106 Correct 1 ms 208 KB Output is correct
107 Correct 1 ms 208 KB Output is correct
108 Correct 1 ms 208 KB Output is correct
109 Correct 1 ms 208 KB Output is correct
110 Correct 1 ms 208 KB Output is correct
111 Correct 1 ms 208 KB Output is correct
112 Correct 1 ms 208 KB Output is correct
113 Correct 1 ms 208 KB Output is correct
114 Correct 1 ms 208 KB Output is correct
115 Correct 1 ms 208 KB Output is correct
116 Correct 1 ms 208 KB Output is correct
117 Correct 1 ms 208 KB Output is correct
118 Correct 1 ms 208 KB Output is correct
119 Correct 1 ms 208 KB Output is correct
120 Correct 1 ms 208 KB Output is correct
121 Correct 1 ms 208 KB Output is correct
122 Correct 1 ms 208 KB Output is correct
123 Correct 1 ms 208 KB Output is correct