| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 765485 |
2023-06-24T14:47:07 Z |
typ_ik |
Combo (IOI18_combo) |
C++17 |
|
37 ms |
624 KB |
#include "combo.h"
#include <bits/stdc++.h>
#define ll long long
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define watch(x) cout << (#x) << " : " << x << '\n'
#define boost ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
using namespace std;
//const string hidden = "XYYYYYYY";
//
//int press(string s) {
// cout << "ask " << s << '\n';
// int res = 0, pt = 0;
// for (int i = 0; i < (int)s.size(); i++) {
// if (hidden[pt] == s[i])
// pt++;
// else
// pt = 0;
// res = max(res, pt);
// if (pt == (int)hidden.size())
// break;
// }
// return res;
//}
string make_string(char x) {
string res;
res += x;
return res;
}
string guess_sequence(int N) {
// guess first letter
int n = N;
const vector<char> symb = {'A', 'B', 'X', 'Y'};
vector <int> order(4);
iota(all(order), 0);
random_shuffle(all(order));
char blocked = '.';
{
int c = press(make_string(symb[order[0]])+make_string(symb[order[1]]));
if (c == 0) {
c = press(make_string(symb[order[2]]));
if (c == 1)
blocked = symb[order[2]];
else
blocked = symb[order[3]];
} else {
c = press(make_string(symb[order[0]]));
if (c == 1)
blocked = symb[order[0]];
else
blocked = symb[order[1]];
}
}
assert(blocked != '.');
int pos = -1;
for (int i = 0; i < 4; i++)
if (symb[order[i]] == blocked)
pos = i;
assert(pos != -1);
order.erase(order.begin() + pos);
assert((int)order.size() == 3);
vector <char> ss;
for (auto i : order)
ss.push_back(symb[i]);
string pref = make_string(blocked);
if (n == 1)
return pref;
for (int i = 1; i + 1 < n; i++) {
vector <string> parts;
parts.push_back(pref+ss[0]);
parts.push_back(pref+ss[1]+ss[0]);
parts.push_back(pref+ss[1]+ss[1]);
parts.push_back(pref+ss[1]+ss[2]);
string tot = "";
for (auto& c : parts)
tot += c;
assert((int)tot.size() <= 4 * n);
int c = press(tot);
if (c == i)
pref += ss[2];
else if (c == i + 1)
pref += ss[0];
else if (c == i + 2)
pref += ss[1];
}
assert((int)pref.size() == n - 1);
int c = press(pref+ss[0]);
if (c == n)
return pref+ss[0];
c = press(pref+ss[1]);
if (c == n)
return pref+ss[1];
return pref+ss[2];
}
//main() {
// srand(time(NULL));
// boost;
//
// string res = guess_sequence((int)(hidden.size()));
//
// cout << "res = " << res << '\n';
// cout << (res == hidden ? "correct" : "incorrect") << '\n';
//
// return 0;
//}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
1 ms |
208 KB |
Output is correct |
| 4 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
0 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 |
1 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 18 |
Correct |
0 ms |
208 KB |
Output is correct |
| 19 |
Correct |
0 ms |
208 KB |
Output is correct |
| 20 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 24 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 28 |
Correct |
0 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 |
0 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 |
0 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
0 ms |
208 KB |
Output is correct |
| 10 |
Correct |
0 ms |
208 KB |
Output is correct |
| 11 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 17 |
Correct |
25 ms |
496 KB |
Output is correct |
| 18 |
Correct |
20 ms |
508 KB |
Output is correct |
| 19 |
Correct |
20 ms |
496 KB |
Output is correct |
| 20 |
Correct |
19 ms |
560 KB |
Output is correct |
| 21 |
Correct |
24 ms |
500 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 |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
312 KB |
Output is correct |
| 26 |
Correct |
1 ms |
208 KB |
Output is correct |
| 27 |
Correct |
1 ms |
320 KB |
Output is correct |
| 28 |
Correct |
2 ms |
296 KB |
Output is correct |
| 29 |
Correct |
3 ms |
344 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
2 ms |
324 KB |
Output is correct |
| 32 |
Correct |
22 ms |
504 KB |
Output is correct |
| 33 |
Correct |
23 ms |
500 KB |
Output is correct |
| 34 |
Correct |
28 ms |
500 KB |
Output is correct |
| 35 |
Correct |
22 ms |
500 KB |
Output is correct |
| 36 |
Correct |
16 ms |
500 KB |
Output is correct |
| 37 |
Correct |
21 ms |
500 KB |
Output is correct |
| 38 |
Correct |
17 ms |
496 KB |
Output is correct |
| 39 |
Correct |
23 ms |
500 KB |
Output is correct |
| 40 |
Correct |
19 ms |
500 KB |
Output is correct |
| 41 |
Correct |
23 ms |
500 KB |
Output is correct |
| 42 |
Correct |
31 ms |
500 KB |
Output is correct |
| 43 |
Correct |
21 ms |
496 KB |
Output is correct |
| 44 |
Correct |
24 ms |
496 KB |
Output is correct |
| 45 |
Correct |
22 ms |
504 KB |
Output is correct |
| 46 |
Correct |
29 ms |
500 KB |
Output is correct |
| 47 |
Correct |
24 ms |
612 KB |
Output is correct |
| 48 |
Correct |
24 ms |
512 KB |
Output is correct |
| 49 |
Correct |
25 ms |
500 KB |
Output is correct |
| 50 |
Correct |
23 ms |
500 KB |
Output is correct |
| 51 |
Correct |
23 ms |
500 KB |
Output is correct |
| 52 |
Correct |
19 ms |
496 KB |
Output is correct |
| 53 |
Correct |
37 ms |
500 KB |
Output is correct |
| 54 |
Correct |
30 ms |
496 KB |
Output is correct |
| 55 |
Correct |
22 ms |
560 KB |
Output is correct |
| 56 |
Correct |
23 ms |
496 KB |
Output is correct |
| 57 |
Correct |
22 ms |
624 KB |
Output is correct |
| 58 |
Correct |
24 ms |
504 KB |
Output is correct |
| 59 |
Correct |
20 ms |
500 KB |
Output is correct |
| 60 |
Correct |
23 ms |
500 KB |
Output is correct |
| 61 |
Correct |
22 ms |
500 KB |
Output is correct |
| 62 |
Correct |
18 ms |
496 KB |
Output is correct |
| 63 |
Correct |
24 ms |
500 KB |
Output is correct |
| 64 |
Correct |
19 ms |
508 KB |
Output is correct |
| 65 |
Correct |
23 ms |
496 KB |
Output is correct |
| 66 |
Correct |
17 ms |
504 KB |
Output is correct |
| 67 |
Correct |
26 ms |
620 KB |
Output is correct |
| 68 |
Correct |
23 ms |
500 KB |
Output is correct |
| 69 |
Correct |
20 ms |
500 KB |
Output is correct |
| 70 |
Correct |
18 ms |
496 KB |
Output is correct |
| 71 |
Correct |
22 ms |
500 KB |
Output is correct |
| 72 |
Correct |
23 ms |
568 KB |
Output is correct |
| 73 |
Correct |
18 ms |
500 KB |
Output is correct |
| 74 |
Correct |
23 ms |
504 KB |
Output is correct |
| 75 |
Correct |
19 ms |
500 KB |
Output is correct |
| 76 |
Correct |
21 ms |
500 KB |
Output is correct |
| 77 |
Correct |
22 ms |
600 KB |
Output is correct |
| 78 |
Correct |
0 ms |
208 KB |
Output is correct |
| 79 |
Correct |
0 ms |
208 KB |
Output is correct |
| 80 |
Correct |
0 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 |
208 KB |
Output is correct |
| 85 |
Correct |
1 ms |
208 KB |
Output is correct |
| 86 |
Correct |
1 ms |
296 KB |
Output is correct |
| 87 |
Correct |
1 ms |
208 KB |
Output is correct |
| 88 |
Correct |
0 ms |
208 KB |
Output is correct |
| 89 |
Correct |
0 ms |
208 KB |
Output is correct |
| 90 |
Correct |
0 ms |
208 KB |
Output is correct |
| 91 |
Correct |
0 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 |
208 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 |
296 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 |
208 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 |
0 ms |
208 KB |
Output is correct |
| 110 |
Correct |
0 ms |
208 KB |
Output is correct |
| 111 |
Correct |
0 ms |
208 KB |
Output is correct |
| 112 |
Correct |
0 ms |
208 KB |
Output is correct |
| 113 |
Correct |
0 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 |
0 ms |
208 KB |
Output is correct |
| 117 |
Correct |
1 ms |
208 KB |
Output is correct |
| 118 |
Correct |
1 ms |
296 KB |
Output is correct |
| 119 |
Correct |
1 ms |
300 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 |
