# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
345960 |
2021-01-08T17:20:18 Z |
Alma |
Combo (IOI18_combo) |
C++14 |
|
44 ms |
696 KB |
#include <iostream>
#include <vector>
#include <string>
#include <combo.h>
using namespace std;
string guess_sequence(int N) {
// 100 points: N + 2 calls to "press"
string p = "";
string S = "";
vector<string> v = {};
int coins = 0;
// guess 1st letter of S (num of calls to "press" = 2)
p = "AB"; coins = press(p);
if (coins >= 1) {
p = "A"; coins = press(p);
if (coins == 1) {S = "A"; v = {"B", "X", "Y"};} // 1st letter = A
else {S = "B"; v = {"A", "X", "Y"};} // 1st letter = B
}
else {
p = "X"; coins = press(p);
if (coins == 1) {S = "X"; v = {"A", "B", "Y"};} // 1st letter = X
else {S = "Y"; v = {"A", "B", "X"};} // 1st letter = Y
}
// if N = 1...
if (N == 1) {return S;}
// guess from 2nd letter to N-1 (num of calls to "press" = N-2)
while ((int)S.length() < N-1) {
int i = (int)S.length();
p = S + v[0]+v[0] + S + v[0]+v[1] + S + v[0]+v[2] + S + v[1];
// f.e. 1st = A p = SBB SBX SBY SX
coins = press(p);
if (coins == i+2) {S += v[0];} // next letter = B v[0]
else if (coins == i+1) {S += v[1];} // next letter = X v[1]
else {S += v[2];} // next letter = Y v[2]
i++;
}
// guess last letter of S (num of calls to "press" = 2)
p = S + v[0]; coins = press(p);
if (coins == N) {S += v[0];}
else {
p = S + v[1]; coins = press(p);
if (coins == N) {S += v[1];}
else {S += v[2];}
}
// total of calls to "press" = 2 + N-2 + 2 = (N + 2)
return S;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
0 ms |
200 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
200 KB |
Output is correct |
5 |
Correct |
1 ms |
200 KB |
Output is correct |
6 |
Correct |
1 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 |
1 ms |
200 KB |
Output is correct |
11 |
Correct |
1 ms |
200 KB |
Output is correct |
12 |
Correct |
1 ms |
200 KB |
Output is correct |
13 |
Correct |
1 ms |
200 KB |
Output is correct |
14 |
Correct |
1 ms |
200 KB |
Output is correct |
15 |
Correct |
1 ms |
200 KB |
Output is correct |
16 |
Correct |
1 ms |
200 KB |
Output is correct |
17 |
Correct |
0 ms |
200 KB |
Output is correct |
18 |
Correct |
1 ms |
200 KB |
Output is correct |
19 |
Correct |
1 ms |
200 KB |
Output is correct |
20 |
Correct |
1 ms |
232 KB |
Output is correct |
21 |
Correct |
1 ms |
200 KB |
Output is correct |
22 |
Correct |
0 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 |
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 |
1 ms |
200 KB |
Output is correct |
30 |
Correct |
1 ms |
200 KB |
Output is correct |
31 |
Correct |
1 ms |
244 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 |
1 ms |
200 KB |
Output is correct |
36 |
Correct |
0 ms |
200 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
200 KB |
Output is correct |
2 |
Correct |
1 ms |
220 KB |
Output is correct |
3 |
Correct |
1 ms |
200 KB |
Output is correct |
4 |
Correct |
1 ms |
200 KB |
Output is correct |
5 |
Correct |
0 ms |
200 KB |
Output is correct |
6 |
Correct |
1 ms |
200 KB |
Output is correct |
7 |
Correct |
1 ms |
200 KB |
Output is correct |
8 |
Correct |
1 ms |
264 KB |
Output is correct |
9 |
Correct |
1 ms |
200 KB |
Output is correct |
10 |
Correct |
1 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 |
1 ms |
200 KB |
Output is correct |
14 |
Correct |
1 ms |
248 KB |
Output is correct |
15 |
Correct |
1 ms |
200 KB |
Output is correct |
16 |
Correct |
1 ms |
200 KB |
Output is correct |
17 |
Correct |
39 ms |
400 KB |
Output is correct |
18 |
Correct |
34 ms |
404 KB |
Output is correct |
19 |
Correct |
34 ms |
400 KB |
Output is correct |
20 |
Correct |
38 ms |
480 KB |
Output is correct |
21 |
Correct |
40 ms |
528 KB |
Output is correct |
22 |
Correct |
1 ms |
200 KB |
Output is correct |
23 |
Correct |
1 ms |
256 KB |
Output is correct |
24 |
Correct |
1 ms |
200 KB |
Output is correct |
25 |
Correct |
2 ms |
200 KB |
Output is correct |
26 |
Correct |
3 ms |
308 KB |
Output is correct |
27 |
Correct |
2 ms |
324 KB |
Output is correct |
28 |
Correct |
2 ms |
304 KB |
Output is correct |
29 |
Correct |
2 ms |
368 KB |
Output is correct |
30 |
Correct |
2 ms |
328 KB |
Output is correct |
31 |
Correct |
5 ms |
296 KB |
Output is correct |
32 |
Correct |
28 ms |
404 KB |
Output is correct |
33 |
Correct |
19 ms |
404 KB |
Output is correct |
34 |
Correct |
36 ms |
412 KB |
Output is correct |
35 |
Correct |
19 ms |
400 KB |
Output is correct |
36 |
Correct |
31 ms |
472 KB |
Output is correct |
37 |
Correct |
25 ms |
404 KB |
Output is correct |
38 |
Correct |
28 ms |
500 KB |
Output is correct |
39 |
Correct |
38 ms |
424 KB |
Output is correct |
40 |
Correct |
33 ms |
496 KB |
Output is correct |
41 |
Correct |
36 ms |
468 KB |
Output is correct |
42 |
Correct |
33 ms |
424 KB |
Output is correct |
43 |
Correct |
25 ms |
504 KB |
Output is correct |
44 |
Correct |
33 ms |
400 KB |
Output is correct |
45 |
Correct |
31 ms |
484 KB |
Output is correct |
46 |
Correct |
23 ms |
696 KB |
Output is correct |
47 |
Correct |
34 ms |
496 KB |
Output is correct |
48 |
Correct |
26 ms |
500 KB |
Output is correct |
49 |
Correct |
30 ms |
488 KB |
Output is correct |
50 |
Correct |
29 ms |
600 KB |
Output is correct |
51 |
Correct |
18 ms |
412 KB |
Output is correct |
52 |
Correct |
44 ms |
460 KB |
Output is correct |
53 |
Correct |
32 ms |
404 KB |
Output is correct |
54 |
Correct |
23 ms |
424 KB |
Output is correct |
55 |
Correct |
27 ms |
464 KB |
Output is correct |
56 |
Correct |
37 ms |
556 KB |
Output is correct |
57 |
Correct |
43 ms |
408 KB |
Output is correct |
58 |
Correct |
22 ms |
404 KB |
Output is correct |
59 |
Correct |
25 ms |
568 KB |
Output is correct |
60 |
Correct |
43 ms |
540 KB |
Output is correct |
61 |
Correct |
32 ms |
496 KB |
Output is correct |
62 |
Correct |
28 ms |
572 KB |
Output is correct |
63 |
Correct |
32 ms |
524 KB |
Output is correct |
64 |
Correct |
37 ms |
504 KB |
Output is correct |
65 |
Correct |
33 ms |
484 KB |
Output is correct |
66 |
Correct |
33 ms |
500 KB |
Output is correct |
67 |
Correct |
17 ms |
456 KB |
Output is correct |
68 |
Correct |
19 ms |
404 KB |
Output is correct |
69 |
Correct |
19 ms |
404 KB |
Output is correct |
70 |
Correct |
19 ms |
404 KB |
Output is correct |
71 |
Correct |
35 ms |
404 KB |
Output is correct |
72 |
Correct |
43 ms |
408 KB |
Output is correct |
73 |
Correct |
20 ms |
516 KB |
Output is correct |
74 |
Correct |
34 ms |
400 KB |
Output is correct |
75 |
Correct |
36 ms |
404 KB |
Output is correct |
76 |
Correct |
39 ms |
516 KB |
Output is correct |
77 |
Correct |
40 ms |
476 KB |
Output is correct |
78 |
Correct |
0 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 |
2 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 |
1 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 |
288 KB |
Output is correct |
94 |
Correct |
2 ms |
296 KB |
Output is correct |
95 |
Correct |
3 ms |
200 KB |
Output is correct |
96 |
Correct |
1 ms |
288 KB |
Output is correct |
97 |
Correct |
2 ms |
200 KB |
Output is correct |
98 |
Correct |
2 ms |
200 KB |
Output is correct |
99 |
Correct |
1 ms |
200 KB |
Output is correct |
100 |
Correct |
2 ms |
292 KB |
Output is correct |
101 |
Correct |
2 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 |
288 KB |
Output is correct |
106 |
Correct |
1 ms |
200 KB |
Output is correct |
107 |
Correct |
1 ms |
200 KB |
Output is correct |
108 |
Correct |
1 ms |
200 KB |
Output is correct |
109 |
Correct |
1 ms |
200 KB |
Output is correct |
110 |
Correct |
1 ms |
200 KB |
Output is correct |
111 |
Correct |
1 ms |
200 KB |
Output is correct |
112 |
Correct |
1 ms |
200 KB |
Output is correct |
113 |
Correct |
1 ms |
200 KB |
Output is correct |
114 |
Correct |
1 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 |
200 KB |
Output is correct |
121 |
Correct |
1 ms |
200 KB |
Output is correct |
122 |
Correct |
1 ms |
200 KB |
Output is correct |
123 |
Correct |
1 ms |
200 KB |
Output is correct |