Submission #98184

#	Time	Username	Problem	Language	Result	Execution time	Memory
98184		onjo0127	Library (JOI18_library)	C++11	19 / 100	3062 ms	632 KiB

library

#include <cstdio>
#include <vector>
#include "library.h"
using namespace std;

vector<int> adj[209];

void Solve(int N) {
	vector<int> M(N, 0);
	for(int i=0; i<N; i++) {
        M[i] = 1;
        for(int j=i+1; j<N; j++) {
            M[j] = 1;
            int x = Query(M);
            if(x == 1) {
                adj[i].push_back(j);
                adj[j].push_back(i);
            }
            M[j] = 0;
        }
        M[i] = 0;
	}
	vector<int> ans;
	int st, p;
	for(int i=0; i<N; i++) if(adj[i].size() <= 1) st = p = i;
	while(1) {
        ans.push_back(st + 1);
        for(auto& it: adj[st]) if(it != p) {
            p = st;
            st = it;
            break;
        }
        if(ans.back() == st + 1) break;
	}
	Answer(ans);
}

Compilation message (stderr)

library.cpp: In function 'void Solve(int)':
library.cpp:28:32: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
         for(auto& it: adj[st]) if(it != p) {
                                ^~
library.cpp:27:26: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
         ans.push_back(st + 1);
                       ~~~^~~

• Subtask 1: 19 / 19
• Subtask 2: 0 / 81