#include <cstdio>
#include <vector>
#include "library.h"
using namespace std;
vector<int> known;
int getNext(int s, vector<int> &pnext) {
vector<int> pnlist;
int N = pnext.size();
for (int i = 0; i < N; ++i) {
if (pnext[i] == 1) pnlist.push_back(i);
}
if (pnlist.size() == 1) return pnlist[0];
// printf("pnlist from %d:\n", s);
// for (int x : pnlist) printf("%d ", x);
// printf("\n");
vector<int> pnfirst(N), pnsec(N);
for (int i = 0; i < pnlist.size(); ++i) {
if (i < pnlist.size() / 2) pnfirst[pnlist[i]] = 1;
else pnsec[pnlist[i]] = 1;
}
int withoutStart = Query(pnfirst);
pnfirst[s] = 1;
if (withoutStart != Query(pnfirst)) {
// the next is not in pnfirst
return getNext(s, pnsec);
} else {
pnfirst[s] = 0;
return getNext(s, pnfirst);
}
}
void Solve(int N)
{
if (N == 1) {
Answer({1});
return;
}
int start = -1;
vector<int> toQuery(N, 1);
for (int i = 0; i < N; ++i) {
toQuery[i] = 0;
if (Query(toQuery) == 1) {
start = i;
break;
}
toQuery[i] = 1;
}
vector<int> ans{start};
// printf("start %d\n", start);
for (int i = 1; i < N; ++i) {
vector<int> probableNext(N, 1);
for (int x : ans) probableNext[x] = 0;
ans.push_back(getNext(ans.back(), probableNext));
}
vector<int> retVal;
for (int x : ans) retVal.push_back(x + 1);
Answer(retVal);
}
Compilation message
library.cpp: In function 'int getNext(int, std::vector<int>&)':
library.cpp:19:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < pnlist.size(); ++i) {
~~^~~~~~~~~~~~~~~
library.cpp:20:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (i < pnlist.size() / 2) pnfirst[pnlist[i]] = 1;
~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
324 KB |
# of queries: 2375 |
| 2 |
Correct |
35 ms |
256 KB |
# of queries: 2409 |
| 3 |
Correct |
45 ms |
384 KB |
# of queries: 2648 |
| 4 |
Correct |
25 ms |
328 KB |
# of queries: 2595 |
| 5 |
Correct |
32 ms |
324 KB |
# of queries: 2508 |
| 6 |
Correct |
41 ms |
256 KB |
# of queries: 2551 |
| 7 |
Correct |
47 ms |
384 KB |
# of queries: 2544 |
| 8 |
Correct |
33 ms |
304 KB |
# of queries: 2420 |
| 9 |
Correct |
25 ms |
320 KB |
# of queries: 2546 |
| 10 |
Correct |
17 ms |
256 KB |
# of queries: 1474 |
| 11 |
Correct |
2 ms |
384 KB |
# of queries: 0 |
| 12 |
Correct |
1 ms |
256 KB |
# of queries: 1 |
| 13 |
Correct |
3 ms |
384 KB |
# of queries: 4 |
| 14 |
Correct |
2 ms |
384 KB |
# of queries: 7 |
| 15 |
Correct |
2 ms |
256 KB |
# of queries: 77 |
| 16 |
Correct |
5 ms |
384 KB |
# of queries: 183 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
324 KB |
# of queries: 2375 |
| 2 |
Correct |
35 ms |
256 KB |
# of queries: 2409 |
| 3 |
Correct |
45 ms |
384 KB |
# of queries: 2648 |
| 4 |
Correct |
25 ms |
328 KB |
# of queries: 2595 |
| 5 |
Correct |
32 ms |
324 KB |
# of queries: 2508 |
| 6 |
Correct |
41 ms |
256 KB |
# of queries: 2551 |
| 7 |
Correct |
47 ms |
384 KB |
# of queries: 2544 |
| 8 |
Correct |
33 ms |
304 KB |
# of queries: 2420 |
| 9 |
Correct |
25 ms |
320 KB |
# of queries: 2546 |
| 10 |
Correct |
17 ms |
256 KB |
# of queries: 1474 |
| 11 |
Correct |
2 ms |
384 KB |
# of queries: 0 |
| 12 |
Correct |
1 ms |
256 KB |
# of queries: 1 |
| 13 |
Correct |
3 ms |
384 KB |
# of queries: 4 |
| 14 |
Correct |
2 ms |
384 KB |
# of queries: 7 |
| 15 |
Correct |
2 ms |
256 KB |
# of queries: 77 |
| 16 |
Correct |
5 ms |
384 KB |
# of queries: 183 |
| 17 |
Correct |
457 ms |
424 KB |
# of queries: 17982 |
| 18 |
Correct |
383 ms |
376 KB |
# of queries: 17293 |
| 19 |
Correct |
467 ms |
448 KB |
# of queries: 17467 |
| 20 |
Correct |
413 ms |
528 KB |
# of queries: 16325 |
| 21 |
Correct |
322 ms |
384 KB |
# of queries: 15324 |
| 22 |
Correct |
480 ms |
444 KB |
# of queries: 17669 |
| 23 |
Correct |
347 ms |
444 KB |
# of queries: 17224 |
| 24 |
Correct |
168 ms |
256 KB |
# of queries: 7915 |
| 25 |
Correct |
466 ms |
384 KB |
# of queries: 17136 |
| 26 |
Correct |
360 ms |
408 KB |
# of queries: 15963 |
| 27 |
Correct |
127 ms |
384 KB |
# of queries: 8040 |
| 28 |
Correct |
407 ms |
492 KB |
# of queries: 15957 |
| 29 |
Correct |
346 ms |
404 KB |
# of queries: 15939 |
| 30 |
Correct |
309 ms |
332 KB |
# of queries: 15957 |
