oj.uz

Submission #84141

# Submission time Handle Problem Language Result Execution time Memory
84141 2018-11-13T12:49:45 Z lovemathboy Combo (IOI18_combo) C++14
100 / 100
 292 ms 620 KB 
#include "combo.h"
#include <bits/stdc++.h>
using namespace std;

char all[] = {'A', 'B', 'X', 'Y'};

string guess_sequence(int n) {
  string p = "";
  string ans = "";
  for (int i = 0; i < 4*n; i++) {
  	if (i < 2*n) p += 'A';
  	else p += 'B';
  }
  char first = 'A';
  int res = press(p);
  p = "";
  if (res > 0) {
  	for (int i = 0; i < 4*n; i++) {
  		p += 'A';
  	}
  	if (press(p) > 0) first = 'A';
  	else first = 'B';
  }
  else {
  	for (int i = 0; i < 4*n; i++) {
  		p += 'X';
  	}
  	if (press(p) > 0) first = 'X';
  	else first = 'Y';
  }
  ans += first;
  char pos[3]; int cnt = 0;
  for (int i = 0; i < 4; i++) {
  	if (all[i] == first) continue;
  	pos[cnt] = all[i]; cnt++;
  }
  for (int i = 1; i < n-1; i++) {
  	p = ans + pos[0];
  	for (int j = 0; j < 3; j++) {
  		p += ans + pos[1] + pos[j];
  	}
  	while (p.length() < 4*n) p += first;
  	int res = press(p);
  	if (res == ans.length() + 1) ans += pos[0];
  	else if (res > ans.length() + 1) ans += pos[1];
  	else ans += pos[2];
  }
  if (n != 1) {
	  if (press(ans + pos[0]) == n) ans += pos[0];
	  else {
	  	if (press(ans + pos[1]) == n) ans += pos[1];
	  	else ans += pos[2];
	  }
  }
  return ans;
}

Compilation message

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:42:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |    while (p.length() < 4*n) p += first;
      |           ~~~~~~~~~~~^~~~~
combo.cpp:44:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |    if (res == ans.length() + 1) ans += pos[0];
      |        ~~~~^~~~~~~~~~~~~~~~~~~
combo.cpp:45:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |    else if (res > ans.length() + 1) ans += pos[1];
      |             ~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 236 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 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 2 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 2 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 200 KB Output is correct
18 Correct 1 ms 200 KB Output is correct
19 Correct 2 ms 236 KB Output is correct
20 Correct 1 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 260 KB Output is correct
23 Correct 1 ms 200 KB Output is correct
24 Correct 2 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 1 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 1 ms 200 KB Output is correct
32 Correct 1 ms 200 KB Output is correct
33 Correct 1 ms 200 KB Output is correct
34 Correct 1 ms 200 KB Output is correct
35 Correct 1 ms 200 KB Output is correct
36 Correct 1 ms 200 KB Output is correct

Subtask #2
95.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 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 1 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 2 ms 200 KB Output is correct
14 Correct 2 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 93 ms 504 KB Output is correct
18 Correct 93 ms 488 KB Output is correct
19 Correct 88 ms 496 KB Output is correct
20 Correct 94 ms 380 KB Output is correct
21 Correct 99 ms 584 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 2 ms 200 KB Output is correct
24 Correct 2 ms 200 KB Output is correct
25 Correct 2 ms 200 KB Output is correct
26 Correct 3 ms 200 KB Output is correct
27 Correct 3 ms 200 KB Output is correct
28 Correct 3 ms 200 KB Output is correct
29 Correct 4 ms 328 KB Output is correct
30 Correct 3 ms 328 KB Output is correct
31 Correct 3 ms 320 KB Output is correct
32 Correct 87 ms 380 KB Output is correct
33 Correct 78 ms 484 KB Output is correct
34 Correct 96 ms 600 KB Output is correct
35 Correct 85 ms 472 KB Output is correct
36 Correct 123 ms 380 KB Output is correct
37 Correct 92 ms 428 KB Output is correct
38 Correct 79 ms 520 KB Output is correct
39 Correct 96 ms 504 KB Output is correct
40 Correct 87 ms 380 KB Output is correct
41 Correct 97 ms 380 KB Output is correct
42 Correct 93 ms 432 KB Output is correct
43 Correct 80 ms 484 KB Output is correct
44 Correct 93 ms 380 KB Output is correct
45 Correct 91 ms 480 KB Output is correct
46 Correct 88 ms 448 KB Output is correct
47 Correct 98 ms 620 KB Output is correct
48 Correct 88 ms 408 KB Output is correct
49 Correct 90 ms 488 KB Output is correct
50 Correct 105 ms 600 KB Output is correct
51 Correct 79 ms 416 KB Output is correct
52 Correct 95 ms 528 KB Output is correct
53 Correct 87 ms 496 KB Output is correct
54 Correct 90 ms 548 KB Output is correct
55 Correct 100 ms 492 KB Output is correct
56 Correct 88 ms 452 KB Output is correct
57 Correct 93 ms 536 KB Output is correct
58 Correct 90 ms 444 KB Output is correct
59 Correct 85 ms 476 KB Output is correct
60 Correct 119 ms 376 KB Output is correct
61 Correct 292 ms 456 KB Output is correct
62 Correct 88 ms 436 KB Output is correct
63 Correct 88 ms 496 KB Output is correct
64 Correct 93 ms 380 KB Output is correct
65 Correct 90 ms 484 KB Output is correct
66 Correct 81 ms 404 KB Output is correct
67 Correct 84 ms 488 KB Output is correct
68 Correct 93 ms 504 KB Output is correct
69 Correct 68 ms 476 KB Output is correct
70 Correct 89 ms 520 KB Output is correct
71 Correct 91 ms 548 KB Output is correct
72 Correct 88 ms 608 KB Output is correct
73 Correct 94 ms 460 KB Output is correct
74 Correct 88 ms 472 KB Output is correct
75 Correct 92 ms 412 KB Output is correct
76 Correct 76 ms 484 KB Output is correct
77 Correct 94 ms 500 KB Output is correct
78 Correct 1 ms 200 KB Output is correct
79 Correct 1 ms 200 KB Output is correct
80 Correct 2 ms 200 KB Output is correct
81 Correct 1 ms 200 KB Output is correct
82 Correct 2 ms 200 KB Output is correct
83 Correct 1 ms 200 KB Output is correct
84 Correct 2 ms 200 KB Output is correct
85 Correct 1 ms 200 KB Output is correct
86 Correct 2 ms 352 KB Output is correct
87 Correct 2 ms 200 KB Output is correct
88 Correct 1 ms 200 KB Output is correct
89 Correct 2 ms 200 KB Output is correct
90 Correct 2 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 2 ms 200 KB Output is correct
95 Correct 2 ms 256 KB Output is correct
96 Correct 2 ms 200 KB Output is correct
97 Correct 2 ms 292 KB Output is correct
98 Correct 2 ms 288 KB Output is correct
99 Correct 3 ms 200 KB Output is correct
100 Correct 2 ms 200 KB Output is correct
101 Correct 2 ms 292 KB Output is correct
102 Correct 2 ms 200 KB Output is correct
103 Correct 2 ms 200 KB Output is correct
104 Correct 2 ms 200 KB Output is correct
105 Correct 2 ms 256 KB Output is correct
106 Correct 2 ms 288 KB Output is correct
107 Correct 1 ms 240 KB Output is correct
108 Correct 1 ms 200 KB Output is correct
109 Correct 2 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 2 ms 200 KB Output is correct
113 Correct 1 ms 200 KB Output is correct
114 Correct 2 ms 200 KB Output is correct
115 Correct 2 ms 200 KB Output is correct
116 Correct 1 ms 200 KB Output is correct
117 Correct 2 ms 200 KB Output is correct
118 Correct 2 ms 200 KB Output is correct
119 Correct 2 ms 296 KB Output is correct
120 Correct 2 ms 200 KB Output is correct
121 Correct 2 ms 200 KB Output is correct
122 Correct 2 ms 292 KB Output is correct
123 Correct 2 ms 292 KB Output is correct