Submission #44791

# Submission time Handle Problem Language Result Execution time Memory
44791 2018-04-06T13:19:32 Z tjd229 Library (JOI18_library) C++14
100 / 100
498 ms 716 KB
#include <cstdio>
#include <vector>

#include "library.h"
using namespace std;
bool use[2000];
vector<int> v1, v2;
int find(int left,int N){
	
	vector<int> M(N);
	int i;
	for (i = 0; i < v1.size(); i++) M[v1[i]] = 1;
	
	int a = Query(M);
	M[left] = 1;
	int b = Query(M);
	vector<int> *live, *erase;
	if (a == b) live = &v1, erase = &v2;
	else live = &v2, erase = &v1;
	if (live->size() == 1) return live->back();

	erase->clear();
	for (i = 0, b = live->size() / 2; i < b; i++){
		a = live->back();
		live->pop_back();
		erase->push_back(a);
	}	
	return find(left, N);
}
void Solve(int N)
{
	vector<int> M(N);
	vector<int> res;
	int i,j;
	int A;
	if (N == 1){
		res.push_back(1);
		Answer(res);
		return;
	}
	for (i = 0; i < N; i++) {
		M[i] = 1;
	}
	for (i = 0; i < N; i++){
		M[i] = 0;
		A = Query(M);
		if (A == 1){
			res.push_back(i + 1);
			use[i] = 1;
			break;
		}
		M[i] = 1;
	}
	int t = 1;
	for (i = 1; i < N; i++){
		t = 1;
		v1.clear();
		v2.clear();
		for (j = 0; j < N; j++){
			if (use[j]) continue;
			if (t) v1.push_back(j);
			else v2.push_back(j);
			t ^= 1;
		}
		if (i == N - 1){
			res.push_back(v1[0]+1);
			break;
		}
		int nxt = find(res.back()-1, N);
		
		//int nxt = 1;
		use[nxt] = 1;
		res.push_back(nxt+1);
	}

	Answer(res);
}

Compilation message

library.cpp: In function 'int find(int, int)':
library.cpp:12:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < v1.size(); i++) M[v1[i]] = 1;
              ~~^~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 34 ms 392 KB Output is correct
2 Correct 45 ms 392 KB Output is correct
3 Correct 46 ms 496 KB Output is correct
4 Correct 44 ms 496 KB Output is correct
5 Correct 39 ms 496 KB Output is correct
6 Correct 39 ms 496 KB Output is correct
7 Correct 40 ms 496 KB Output is correct
8 Correct 35 ms 504 KB Output is correct
9 Correct 40 ms 504 KB Output is correct
10 Correct 19 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 4 ms 512 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 34 ms 392 KB Output is correct
2 Correct 45 ms 392 KB Output is correct
3 Correct 46 ms 496 KB Output is correct
4 Correct 44 ms 496 KB Output is correct
5 Correct 39 ms 496 KB Output is correct
6 Correct 39 ms 496 KB Output is correct
7 Correct 40 ms 496 KB Output is correct
8 Correct 35 ms 504 KB Output is correct
9 Correct 40 ms 504 KB Output is correct
10 Correct 19 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 4 ms 512 KB Output is correct
17 Correct 484 ms 692 KB Output is correct
18 Correct 477 ms 692 KB Output is correct
19 Correct 472 ms 692 KB Output is correct
20 Correct 404 ms 692 KB Output is correct
21 Correct 399 ms 704 KB Output is correct
22 Correct 461 ms 704 KB Output is correct
23 Correct 484 ms 704 KB Output is correct
24 Correct 152 ms 704 KB Output is correct
25 Correct 486 ms 704 KB Output is correct
26 Correct 425 ms 704 KB Output is correct
27 Correct 160 ms 704 KB Output is correct
28 Correct 481 ms 716 KB Output is correct
29 Correct 498 ms 716 KB Output is correct
30 Correct 470 ms 716 KB Output is correct