# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
299525 |
2020-09-15T06:10:41 Z |
square1001 |
Combo (IOI18_combo) |
C++14 |
|
40 ms |
636 KB |
#include "combo.h"
#include <string>
#include <iostream>
using namespace std;
std::string guess_sequence(int N) {
// step #1. first letter
int gi1 = press("AB"), gi2 = press("AX");
char ci = '?';
if(gi1 != 0 && gi2 != 0) ci = 'A';
if(gi1 != 0 && gi2 == 0) ci = 'B';
if(gi1 == 0 && gi2 != 0) ci = 'X';
if(gi1 == 0 && gi2 == 0) ci = 'Y';
// step #2. second to (N-1)-th letters
string current(1, ci);
for(int i = 1; i < N - 1; ++i) {
char cn1 = '?', cn2 = '?', cn3 = '?';
if(ci == 'A') cn1 = 'B', cn2 = 'X', cn3 = 'Y';
if(ci == 'B') cn1 = 'X', cn2 = 'Y', cn3 = 'A';
if(ci == 'X') cn1 = 'Y', cn2 = 'A', cn3 = 'B';
if(ci == 'Y') cn1 = 'A', cn2 = 'B', cn3 = 'X';
int g = press(current + cn1 + cn1 + current + cn1 + cn2 + current + cn1 + cn3 + current + cn2);
if(g == i + 2) current += cn1;
if(g == i + 1) current += cn2;
if(g == i) current += cn3;
};
// step #3. N-th letter
if(N >= 2) {
int gl1 = press(current + "A" + current + "B");
int gl2 = press(current + "A" + current + "X");
if(gl1 == N && gl2 == N) current += "A";
if(gl1 == N && gl2 != N) current += "B";
if(gl1 != N && gl2 == N) current += "X";
if(gl1 != N && gl2 != N) current += "Y";
}
return current;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
200 KB |
Output is correct |
2 |
Correct |
0 ms |
200 KB |
Output is correct |
3 |
Correct |
0 ms |
200 KB |
Output is correct |
4 |
Correct |
0 ms |
200 KB |
Output is correct |
5 |
Correct |
0 ms |
200 KB |
Output is correct |
6 |
Correct |
0 ms |
200 KB |
Output is correct |
7 |
Correct |
1 ms |
200 KB |
Output is correct |
8 |
Correct |
0 ms |
200 KB |
Output is correct |
9 |
Correct |
0 ms |
200 KB |
Output is correct |
10 |
Correct |
0 ms |
200 KB |
Output is correct |
11 |
Correct |
0 ms |
200 KB |
Output is correct |
12 |
Correct |
0 ms |
200 KB |
Output is correct |
13 |
Correct |
0 ms |
200 KB |
Output is correct |
14 |
Correct |
0 ms |
200 KB |
Output is correct |
15 |
Correct |
0 ms |
200 KB |
Output is correct |
16 |
Correct |
0 ms |
200 KB |
Output is correct |
17 |
Correct |
1 ms |
200 KB |
Output is correct |
18 |
Correct |
0 ms |
200 KB |
Output is correct |
19 |
Correct |
0 ms |
200 KB |
Output is correct |
20 |
Correct |
0 ms |
200 KB |
Output is correct |
21 |
Correct |
0 ms |
200 KB |
Output is correct |
22 |
Correct |
0 ms |
200 KB |
Output is correct |
23 |
Correct |
0 ms |
200 KB |
Output is correct |
24 |
Correct |
1 ms |
200 KB |
Output is correct |
25 |
Correct |
0 ms |
200 KB |
Output is correct |
26 |
Correct |
0 ms |
200 KB |
Output is correct |
27 |
Correct |
0 ms |
200 KB |
Output is correct |
28 |
Correct |
0 ms |
200 KB |
Output is correct |
29 |
Correct |
0 ms |
200 KB |
Output is correct |
30 |
Correct |
0 ms |
200 KB |
Output is correct |
31 |
Correct |
0 ms |
200 KB |
Output is correct |
32 |
Correct |
0 ms |
200 KB |
Output is correct |
33 |
Correct |
1 ms |
200 KB |
Output is correct |
34 |
Correct |
0 ms |
200 KB |
Output is correct |
35 |
Correct |
0 ms |
200 KB |
Output is correct |
36 |
Correct |
0 ms |
200 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
200 KB |
Output is correct |
2 |
Correct |
0 ms |
200 KB |
Output is correct |
3 |
Correct |
1 ms |
200 KB |
Output is correct |
4 |
Correct |
0 ms |
200 KB |
Output is correct |
5 |
Correct |
0 ms |
200 KB |
Output is correct |
6 |
Correct |
0 ms |
200 KB |
Output is correct |
7 |
Correct |
1 ms |
200 KB |
Output is correct |
8 |
Correct |
0 ms |
200 KB |
Output is correct |
9 |
Correct |
1 ms |
200 KB |
Output is correct |
10 |
Correct |
0 ms |
200 KB |
Output is correct |
11 |
Correct |
0 ms |
200 KB |
Output is correct |
12 |
Correct |
1 ms |
200 KB |
Output is correct |
13 |
Correct |
0 ms |
200 KB |
Output is correct |
14 |
Correct |
0 ms |
200 KB |
Output is correct |
15 |
Correct |
0 ms |
200 KB |
Output is correct |
16 |
Correct |
0 ms |
200 KB |
Output is correct |
17 |
Correct |
26 ms |
504 KB |
Output is correct |
18 |
Correct |
27 ms |
344 KB |
Output is correct |
19 |
Correct |
26 ms |
452 KB |
Output is correct |
20 |
Correct |
30 ms |
552 KB |
Output is correct |
21 |
Correct |
30 ms |
380 KB |
Output is correct |
22 |
Correct |
1 ms |
200 KB |
Output is correct |
23 |
Correct |
1 ms |
200 KB |
Output is correct |
24 |
Correct |
1 ms |
200 KB |
Output is correct |
25 |
Correct |
1 ms |
200 KB |
Output is correct |
26 |
Correct |
2 ms |
200 KB |
Output is correct |
27 |
Correct |
1 ms |
200 KB |
Output is correct |
28 |
Correct |
1 ms |
200 KB |
Output is correct |
29 |
Correct |
2 ms |
200 KB |
Output is correct |
30 |
Correct |
2 ms |
200 KB |
Output is correct |
31 |
Correct |
3 ms |
300 KB |
Output is correct |
32 |
Correct |
29 ms |
360 KB |
Output is correct |
33 |
Correct |
28 ms |
428 KB |
Output is correct |
34 |
Correct |
15 ms |
344 KB |
Output is correct |
35 |
Correct |
35 ms |
456 KB |
Output is correct |
36 |
Correct |
29 ms |
520 KB |
Output is correct |
37 |
Correct |
30 ms |
372 KB |
Output is correct |
38 |
Correct |
18 ms |
340 KB |
Output is correct |
39 |
Correct |
28 ms |
604 KB |
Output is correct |
40 |
Correct |
18 ms |
460 KB |
Output is correct |
41 |
Correct |
32 ms |
344 KB |
Output is correct |
42 |
Correct |
32 ms |
344 KB |
Output is correct |
43 |
Correct |
34 ms |
432 KB |
Output is correct |
44 |
Correct |
25 ms |
464 KB |
Output is correct |
45 |
Correct |
27 ms |
344 KB |
Output is correct |
46 |
Correct |
31 ms |
344 KB |
Output is correct |
47 |
Correct |
30 ms |
636 KB |
Output is correct |
48 |
Correct |
15 ms |
388 KB |
Output is correct |
49 |
Correct |
27 ms |
344 KB |
Output is correct |
50 |
Correct |
28 ms |
344 KB |
Output is correct |
51 |
Correct |
34 ms |
348 KB |
Output is correct |
52 |
Correct |
24 ms |
480 KB |
Output is correct |
53 |
Correct |
21 ms |
344 KB |
Output is correct |
54 |
Correct |
29 ms |
464 KB |
Output is correct |
55 |
Correct |
36 ms |
464 KB |
Output is correct |
56 |
Correct |
28 ms |
452 KB |
Output is correct |
57 |
Correct |
16 ms |
340 KB |
Output is correct |
58 |
Correct |
16 ms |
356 KB |
Output is correct |
59 |
Correct |
28 ms |
420 KB |
Output is correct |
60 |
Correct |
28 ms |
396 KB |
Output is correct |
61 |
Correct |
30 ms |
416 KB |
Output is correct |
62 |
Correct |
32 ms |
436 KB |
Output is correct |
63 |
Correct |
17 ms |
464 KB |
Output is correct |
64 |
Correct |
27 ms |
376 KB |
Output is correct |
65 |
Correct |
27 ms |
340 KB |
Output is correct |
66 |
Correct |
26 ms |
464 KB |
Output is correct |
67 |
Correct |
22 ms |
504 KB |
Output is correct |
68 |
Correct |
34 ms |
424 KB |
Output is correct |
69 |
Correct |
33 ms |
408 KB |
Output is correct |
70 |
Correct |
17 ms |
440 KB |
Output is correct |
71 |
Correct |
26 ms |
468 KB |
Output is correct |
72 |
Correct |
15 ms |
344 KB |
Output is correct |
73 |
Correct |
27 ms |
436 KB |
Output is correct |
74 |
Correct |
40 ms |
468 KB |
Output is correct |
75 |
Correct |
31 ms |
596 KB |
Output is correct |
76 |
Correct |
26 ms |
468 KB |
Output is correct |
77 |
Correct |
26 ms |
340 KB |
Output is correct |
78 |
Correct |
1 ms |
200 KB |
Output is correct |
79 |
Correct |
1 ms |
200 KB |
Output is correct |
80 |
Correct |
1 ms |
200 KB |
Output is correct |
81 |
Correct |
1 ms |
200 KB |
Output is correct |
82 |
Correct |
1 ms |
200 KB |
Output is correct |
83 |
Correct |
1 ms |
200 KB |
Output is correct |
84 |
Correct |
1 ms |
200 KB |
Output is correct |
85 |
Correct |
1 ms |
200 KB |
Output is correct |
86 |
Correct |
1 ms |
200 KB |
Output is correct |
87 |
Correct |
1 ms |
200 KB |
Output is correct |
88 |
Correct |
0 ms |
200 KB |
Output is correct |
89 |
Correct |
0 ms |
200 KB |
Output is correct |
90 |
Correct |
1 ms |
200 KB |
Output is correct |
91 |
Correct |
1 ms |
200 KB |
Output is correct |
92 |
Correct |
1 ms |
200 KB |
Output is correct |
93 |
Correct |
1 ms |
200 KB |
Output is correct |
94 |
Correct |
1 ms |
200 KB |
Output is correct |
95 |
Correct |
1 ms |
200 KB |
Output is correct |
96 |
Correct |
1 ms |
292 KB |
Output is correct |
97 |
Correct |
1 ms |
200 KB |
Output is correct |
98 |
Correct |
2 ms |
200 KB |
Output is correct |
99 |
Correct |
1 ms |
292 KB |
Output is correct |
100 |
Correct |
1 ms |
200 KB |
Output is correct |
101 |
Correct |
1 ms |
200 KB |
Output is correct |
102 |
Correct |
1 ms |
200 KB |
Output is correct |
103 |
Correct |
1 ms |
200 KB |
Output is correct |
104 |
Correct |
1 ms |
200 KB |
Output is correct |
105 |
Correct |
1 ms |
200 KB |
Output is correct |
106 |
Correct |
1 ms |
200 KB |
Output is correct |
107 |
Correct |
0 ms |
200 KB |
Output is correct |
108 |
Correct |
1 ms |
200 KB |
Output is correct |
109 |
Correct |
0 ms |
200 KB |
Output is correct |
110 |
Correct |
0 ms |
200 KB |
Output is correct |
111 |
Correct |
0 ms |
200 KB |
Output is correct |
112 |
Correct |
0 ms |
200 KB |
Output is correct |
113 |
Correct |
0 ms |
200 KB |
Output is correct |
114 |
Correct |
0 ms |
200 KB |
Output is correct |
115 |
Correct |
1 ms |
200 KB |
Output is correct |
116 |
Correct |
1 ms |
200 KB |
Output is correct |
117 |
Correct |
1 ms |
200 KB |
Output is correct |
118 |
Correct |
1 ms |
200 KB |
Output is correct |
119 |
Correct |
1 ms |
200 KB |
Output is correct |
120 |
Correct |
1 ms |
292 KB |
Output is correct |
121 |
Correct |
1 ms |
200 KB |
Output is correct |
122 |
Correct |
1 ms |
292 KB |
Output is correct |
123 |
Correct |
1 ms |
292 KB |
Output is correct |