// Om Namah Shivaya
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x, y) ((x + y - 1) / (y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
#define rep(i, n) for(int i = 0; i < n; ++i)
#define rep1(i, n) for(int i = 1; i <= n; ++i)
#define rev(i, s, e) for(int i = s; i >= e; --i)
#define trav(i, a) for(auto &i : a)
template<typename T>
void amin(T &a, T b) {
a = min(a, b);
}
template<typename T>
void amax(T &a, T b) {
a = max(a, b);
}
#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif
/*
got 97, couldnt optimize to 100
to optimize, note that we only need 2 (not 3) queries to find the first char
this can be done using dnc approach
*/
const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
#include "combo.h"
string guess_sequence(int n) {
string chars = "ABXY";
string s = "";
char first = '?';
if (press("AB")) {
if (press("A")) {
first = 'A';
}
else {
first = 'B';
}
}
else {
if (press("X")) {
first = 'X';
}
else {
first = 'Y';
}
}
s.pb(first);
chars.erase(find(all(chars), first));
if (n == 1) {
return s;
}
while (sz(s) < n - 1) {
int siz = sz(s);
string t = s + chars[0];
trav(ch, chars) {
t = t + s + chars[1] + ch;
}
int res = press(t);
if (res == siz + 0) {
s.pb(chars[2]);
}
else if (res == siz + 1) {
s.pb(chars[0]);
}
else {
s.pb(chars[1]);
}
}
rep(j, 2) {
s.pb(chars[j]);
if (press(s) == n) {
return s;
}
s.pop_back();
}
s.pb(chars.back());
return s;
}
Compilation message
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:95:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
95 | while (sz(s) < n - 1) {
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 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 |
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 |
0 ms |
208 KB |
Output is correct |
10 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
16 |
Correct |
0 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 |
0 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 |
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 |
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 |
0 ms |
208 KB |
Output is correct |
32 |
Correct |
0 ms |
208 KB |
Output is correct |
33 |
Correct |
0 ms |
208 KB |
Output is correct |
34 |
Correct |
0 ms |
208 KB |
Output is correct |
35 |
Correct |
0 ms |
208 KB |
Output is correct |
36 |
Correct |
0 ms |
208 KB |
Output is correct |
# |
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 |
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 |
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 |
1 ms |
208 KB |
Output is correct |
16 |
Correct |
0 ms |
208 KB |
Output is correct |
17 |
Correct |
26 ms |
440 KB |
Output is correct |
18 |
Correct |
15 ms |
480 KB |
Output is correct |
19 |
Correct |
25 ms |
428 KB |
Output is correct |
20 |
Correct |
27 ms |
392 KB |
Output is correct |
21 |
Correct |
25 ms |
392 KB |
Output is correct |
22 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
26 |
Correct |
1 ms |
208 KB |
Output is correct |
27 |
Correct |
2 ms |
208 KB |
Output is correct |
28 |
Correct |
2 ms |
332 KB |
Output is correct |
29 |
Correct |
2 ms |
336 KB |
Output is correct |
30 |
Correct |
2 ms |
336 KB |
Output is correct |
31 |
Correct |
2 ms |
336 KB |
Output is correct |
32 |
Correct |
25 ms |
484 KB |
Output is correct |
33 |
Correct |
24 ms |
484 KB |
Output is correct |
34 |
Correct |
22 ms |
396 KB |
Output is correct |
35 |
Correct |
18 ms |
488 KB |
Output is correct |
36 |
Correct |
33 ms |
384 KB |
Output is correct |
37 |
Correct |
25 ms |
404 KB |
Output is correct |
38 |
Correct |
22 ms |
388 KB |
Output is correct |
39 |
Correct |
22 ms |
392 KB |
Output is correct |
40 |
Correct |
29 ms |
448 KB |
Output is correct |
41 |
Correct |
20 ms |
472 KB |
Output is correct |
42 |
Correct |
28 ms |
572 KB |
Output is correct |
43 |
Correct |
23 ms |
436 KB |
Output is correct |
44 |
Correct |
24 ms |
388 KB |
Output is correct |
45 |
Correct |
27 ms |
604 KB |
Output is correct |
46 |
Correct |
29 ms |
460 KB |
Output is correct |
47 |
Correct |
31 ms |
492 KB |
Output is correct |
48 |
Correct |
25 ms |
384 KB |
Output is correct |
49 |
Correct |
36 ms |
388 KB |
Output is correct |
50 |
Correct |
32 ms |
464 KB |
Output is correct |
51 |
Correct |
29 ms |
476 KB |
Output is correct |
52 |
Correct |
29 ms |
416 KB |
Output is correct |
53 |
Correct |
27 ms |
392 KB |
Output is correct |
54 |
Correct |
42 ms |
476 KB |
Output is correct |
55 |
Correct |
26 ms |
404 KB |
Output is correct |
56 |
Correct |
47 ms |
492 KB |
Output is correct |
57 |
Correct |
40 ms |
476 KB |
Output is correct |
58 |
Correct |
33 ms |
384 KB |
Output is correct |
59 |
Correct |
36 ms |
468 KB |
Output is correct |
60 |
Correct |
40 ms |
484 KB |
Output is correct |
61 |
Correct |
32 ms |
500 KB |
Output is correct |
62 |
Correct |
33 ms |
492 KB |
Output is correct |
63 |
Correct |
31 ms |
488 KB |
Output is correct |
64 |
Correct |
25 ms |
432 KB |
Output is correct |
65 |
Correct |
33 ms |
392 KB |
Output is correct |
66 |
Correct |
34 ms |
496 KB |
Output is correct |
67 |
Correct |
34 ms |
488 KB |
Output is correct |
68 |
Correct |
30 ms |
480 KB |
Output is correct |
69 |
Correct |
25 ms |
472 KB |
Output is correct |
70 |
Correct |
38 ms |
440 KB |
Output is correct |
71 |
Correct |
38 ms |
472 KB |
Output is correct |
72 |
Correct |
29 ms |
384 KB |
Output is correct |
73 |
Correct |
23 ms |
388 KB |
Output is correct |
74 |
Correct |
20 ms |
384 KB |
Output is correct |
75 |
Correct |
30 ms |
480 KB |
Output is correct |
76 |
Correct |
33 ms |
488 KB |
Output is correct |
77 |
Correct |
28 ms |
384 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 |
240 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 |
208 KB |
Output is correct |
87 |
Correct |
1 ms |
208 KB |
Output is correct |
88 |
Correct |
1 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 |
208 KB |
Output is correct |
97 |
Correct |
1 ms |
208 KB |
Output is correct |
98 |
Correct |
2 ms |
208 KB |
Output is correct |
99 |
Correct |
1 ms |
208 KB |
Output is correct |
100 |
Correct |
1 ms |
208 KB |
Output is correct |
101 |
Correct |
1 ms |
296 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 |
0 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 |
0 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 |
0 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 |
300 KB |
Output is correct |
121 |
Correct |
1 ms |
304 KB |
Output is correct |
122 |
Correct |
1 ms |
208 KB |
Output is correct |
123 |
Correct |
1 ms |
208 KB |
Output is correct |