#include "combo.h"
// Source: https://oj.uz/problem/view/IOI18_combo
//
#include "bits/stdc++.h"
using namespace std;
#define s second
#define f first
#define pb push_back
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
typedef vector<int> vi;
#define FOR(i, a, b) for (int i = (a); i<b; i++)
bool ckmin(int& a, int b){ return b < a ? a = b, true : false; }
bool ckmax(int& a, int b){ return b > a ? a = b, true : false; }
string guess_sequence(int N) {
int ab = press("AB");
string st = "";
string ad = "";
string doub;
string lst;
vector<string> pr;
string poss = "ABXY";
if (ab) {
if (press("A")) st= "A";
else st="B";
} else {
if (press("X")) st= "X";
else st="Y";
}
if (N == 1) return st;
string pref = st;
for (char a: poss) {
if (a == st[0]) continue;
if (ad == "") ad = a;
else if (pr.size() == 0) {
// cout << 'd' << endl;
for (char b: poss) {
if (b != st[0]) {
string aa = string() + a;
string bb = string() + b;
pr.pb(aa + bb);
// cout << "d" + a + b << endl;
}
}
doub = a;
} else lst = a;
}
// for (auto val: pr) cout << val << endl;
// cout << ad << endl;
// cout << pref << endl;
assert(pr.size() == 3);
FOR(i, 1, N-1) {
string guess;
guess += pref + ad;
for (auto val: pr) guess += pref + val;
// cout << pref << endl;
int here = press(guess);
if (here == pref.size()) pref += lst;
else if (here == pref.size() + 1) pref += ad;
else pref += doub;
}
// cout << pref << endl;
ab = press(pref + doub + pref + lst);
// cout << pref << ab << lst << endl;
if (ab > pref.size()) {
// cout << 'd' << endl;
if (press(pref + doub) > pref.size()) return pref + doub;
else return pref + lst;
} else {
return pref + ad;
}
// return pref;
}
// int main() {
// ios::sync_with_stdio(false);
// cin.tie(nullptr);
// }
Compilation message
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:78:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
78 | if (here == pref.size()) pref += lst;
| ~~~~~^~~~~~~~~~~~~~
combo.cpp:79:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
79 | else if (here == pref.size() + 1) pref += ad;
| ~~~~~^~~~~~~~~~~~~~~~~~
combo.cpp:85:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
85 | if (ab > pref.size()) {
| ~~~^~~~~~~~~~~~~
combo.cpp:87:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
87 | if (press(pref + doub) > pref.size()) return pref + doub;
| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
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 |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
504 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 |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
1 ms |
344 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 |
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 |
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 |
0 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
344 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
0 ms |
344 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 |
0 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 |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
0 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 |
12 ms |
1120 KB |
Output is correct |
18 |
Correct |
12 ms |
1100 KB |
Output is correct |
19 |
Correct |
12 ms |
1596 KB |
Output is correct |
20 |
Correct |
14 ms |
1504 KB |
Output is correct |
21 |
Correct |
11 ms |
1672 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
684 KB |
Output is correct |
24 |
Correct |
1 ms |
432 KB |
Output is correct |
25 |
Correct |
1 ms |
444 KB |
Output is correct |
26 |
Correct |
1 ms |
444 KB |
Output is correct |
27 |
Correct |
1 ms |
448 KB |
Output is correct |
28 |
Correct |
1 ms |
440 KB |
Output is correct |
29 |
Correct |
1 ms |
448 KB |
Output is correct |
30 |
Correct |
1 ms |
608 KB |
Output is correct |
31 |
Correct |
1 ms |
440 KB |
Output is correct |
32 |
Correct |
11 ms |
1264 KB |
Output is correct |
33 |
Correct |
10 ms |
1492 KB |
Output is correct |
34 |
Correct |
13 ms |
1556 KB |
Output is correct |
35 |
Correct |
12 ms |
2004 KB |
Output is correct |
36 |
Correct |
12 ms |
1488 KB |
Output is correct |
37 |
Correct |
12 ms |
1912 KB |
Output is correct |
38 |
Correct |
11 ms |
1680 KB |
Output is correct |
39 |
Correct |
13 ms |
1384 KB |
Output is correct |
40 |
Correct |
12 ms |
1624 KB |
Output is correct |
41 |
Correct |
11 ms |
1812 KB |
Output is correct |
42 |
Correct |
12 ms |
1036 KB |
Output is correct |
43 |
Correct |
11 ms |
1580 KB |
Output is correct |
44 |
Correct |
11 ms |
1692 KB |
Output is correct |
45 |
Correct |
12 ms |
1636 KB |
Output is correct |
46 |
Correct |
12 ms |
1112 KB |
Output is correct |
47 |
Correct |
12 ms |
1512 KB |
Output is correct |
48 |
Correct |
12 ms |
1760 KB |
Output is correct |
49 |
Correct |
12 ms |
1684 KB |
Output is correct |
50 |
Correct |
12 ms |
1540 KB |
Output is correct |
51 |
Correct |
13 ms |
1396 KB |
Output is correct |
52 |
Correct |
13 ms |
1304 KB |
Output is correct |
53 |
Correct |
12 ms |
1420 KB |
Output is correct |
54 |
Correct |
13 ms |
1512 KB |
Output is correct |
55 |
Correct |
11 ms |
1312 KB |
Output is correct |
56 |
Correct |
12 ms |
1568 KB |
Output is correct |
57 |
Correct |
10 ms |
1724 KB |
Output is correct |
58 |
Correct |
13 ms |
1544 KB |
Output is correct |
59 |
Correct |
13 ms |
1384 KB |
Output is correct |
60 |
Correct |
11 ms |
1416 KB |
Output is correct |
61 |
Correct |
11 ms |
1000 KB |
Output is correct |
62 |
Correct |
11 ms |
1304 KB |
Output is correct |
63 |
Correct |
11 ms |
1380 KB |
Output is correct |
64 |
Correct |
13 ms |
1676 KB |
Output is correct |
65 |
Correct |
13 ms |
1516 KB |
Output is correct |
66 |
Correct |
12 ms |
1300 KB |
Output is correct |
67 |
Correct |
13 ms |
1380 KB |
Output is correct |
68 |
Correct |
11 ms |
1320 KB |
Output is correct |
69 |
Correct |
11 ms |
1252 KB |
Output is correct |
70 |
Correct |
14 ms |
1652 KB |
Output is correct |
71 |
Correct |
12 ms |
1368 KB |
Output is correct |
72 |
Correct |
12 ms |
1428 KB |
Output is correct |
73 |
Correct |
11 ms |
1768 KB |
Output is correct |
74 |
Correct |
15 ms |
1756 KB |
Output is correct |
75 |
Correct |
14 ms |
1384 KB |
Output is correct |
76 |
Correct |
14 ms |
1540 KB |
Output is correct |
77 |
Correct |
12 ms |
1272 KB |
Output is correct |
78 |
Correct |
0 ms |
344 KB |
Output is correct |
79 |
Correct |
0 ms |
344 KB |
Output is correct |
80 |
Correct |
0 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 |
Correct |
1 ms |
344 KB |
Output is correct |
84 |
Correct |
1 ms |
344 KB |
Output is correct |
85 |
Correct |
0 ms |
436 KB |
Output is correct |
86 |
Correct |
0 ms |
432 KB |
Output is correct |
87 |
Correct |
1 ms |
432 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 |
Correct |
1 ms |
344 KB |
Output is correct |
92 |
Correct |
0 ms |
344 KB |
Output is correct |
93 |
Correct |
0 ms |
344 KB |
Output is correct |
94 |
Correct |
1 ms |
344 KB |
Output is correct |
95 |
Correct |
0 ms |
436 KB |
Output is correct |
96 |
Correct |
1 ms |
440 KB |
Output is correct |
97 |
Correct |
1 ms |
436 KB |
Output is correct |
98 |
Correct |
1 ms |
436 KB |
Output is correct |
99 |
Correct |
1 ms |
444 KB |
Output is correct |
100 |
Correct |
1 ms |
436 KB |
Output is correct |
101 |
Correct |
1 ms |
692 KB |
Output is correct |
102 |
Correct |
1 ms |
436 KB |
Output is correct |
103 |
Correct |
1 ms |
432 KB |
Output is correct |
104 |
Correct |
0 ms |
432 KB |
Output is correct |
105 |
Correct |
0 ms |
344 KB |
Output is correct |
106 |
Correct |
1 ms |
344 KB |
Output is correct |
107 |
Correct |
1 ms |
344 KB |
Output is correct |
108 |
Correct |
0 ms |
344 KB |
Output is correct |
109 |
Correct |
1 ms |
344 KB |
Output is correct |
110 |
Correct |
1 ms |
344 KB |
Output is correct |
111 |
Correct |
0 ms |
344 KB |
Output is correct |
112 |
Correct |
0 ms |
344 KB |
Output is correct |
113 |
Correct |
0 ms |
344 KB |
Output is correct |
114 |
Correct |
0 ms |
344 KB |
Output is correct |
115 |
Correct |
1 ms |
344 KB |
Output is correct |
116 |
Correct |
1 ms |
344 KB |
Output is correct |
117 |
Correct |
1 ms |
344 KB |
Output is correct |
118 |
Correct |
0 ms |
344 KB |
Output is correct |
119 |
Correct |
1 ms |
436 KB |
Output is correct |
120 |
Correct |
1 ms |
440 KB |
Output is correct |
121 |
Correct |
0 ms |
432 KB |
Output is correct |
122 |
Correct |
0 ms |
432 KB |
Output is correct |
123 |
Correct |
1 ms |
432 KB |
Output is correct |