#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
// #define int long long
#define lowbit(x) x&-x
const int maxn = 1005;
#include "library.h"
int n;
set<int> st;
int deg[maxn];
vector<int> adj[maxn];
int ed[maxn];
vector<pll> edge;
int con(vector<int> a){
set<int> cur;
for(auto x : a) cur.insert(x);
int cnt = 0;
for(auto [a, b] : edge) if(cur.count(a) && cur.count(b)) cnt++;
return cnt;
}
int qry(vector<int> a){
// cout<<"q : ";
// for(auto x : a) cout<<x<<" ";
// cout<<"\n";
// int op;
// cin>>op;
// cout<<"con : "<<con(a)<<"\n";
// return op < int(a.size()) - con(a);
vector<int> cur(n);
for(auto x : a) cur[x - 1] = 1;
int op = Query(cur);
return op < int(a.size()) - con(a);
}
void add(int a, int b){
adj[a].pb(b);
adj[b].pb(a);
deg[a] ++, deg[b] ++;
edge.eb(a, b);
if(deg[a] == 2) st.insert(a);
if(deg[b] == 2) st.insert(b);
if(deg[a] == 1 && deg[b] == 1) ed[a] = 1;
}
void Solve(int _n){
n = _n;
vector<int> q;
for(int rd = 0; rd < n - 1; rd++){
vector<int> cand;
for(int j = 1; j <= n; j++) cand.pb(j);
int l = 0, r = cand.size() - 1;
int ok = 0;
while(l + 1 < r){
// cout<<"bs : "<<l<<" "<<r<<"\n";
int m = (l + r) / 2;
vector<int> a, b;
for(int i = l; i <= m; i++) a.pb(cand[i]);
for(int i = m + 1; i <= r; i++) b.pb(cand[i]);
if(qry(a)) r = m, ok = 1;
else if(qry(b)) l = m + 1, ok = 1;
else break;
}
if(r == l + 1){
add(cand[l], cand[r]);
continue;
}
int m = (l + r) / 2;
int L = l, R = m;
while(L < R){
int mid = (L + R) / 2;
vector<int> a;
for(int i = m + 1; i <= r; i++) a.pb(cand[i]);
for(int i = L; i <= mid; i++) a.pb(cand[i]);
if(qry(a)) R = mid;
else L = mid + 1;
}
int fr = cand[L];
L = m + 1, R = r;
while(L < R){
int mid = (L + R) / 2;
vector<int> a;
a.pb(fr);
for(int i = L; i <= mid; i++) a.pb(cand[i]);
if(qry(a)) R = mid;
else L = mid + 1;
}
add(fr, cand[L]);
}
int pos;
for(int i = 1; i <= n; i++){
if(deg[i] == 1){
pos = i;
break;
}
}
vector<int> ans;
int prev = -1;
while(true){
ans.pb(pos);
int ok = 0;
for(auto x : adj[pos]){
if(x != prev){
prev = pos, pos = x, ok = 1;
break;
}
}
if(!ok) break;
}
// cout<<"ans : ";
// for(auto x : ans) cout<<x<<" ";
// cout<<"\n";
Answer(ans);
}
Compilation message
library.cpp: In function 'void Solve(int)':
library.cpp:59:7: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
59 | int ok = 0;
| ^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
32 ms |
972 KB |
# of queries: 2847 |
| 2 |
Correct |
30 ms |
728 KB |
# of queries: 2838 |
| 3 |
Correct |
34 ms |
984 KB |
# of queries: 2972 |
| 4 |
Correct |
46 ms |
984 KB |
# of queries: 2965 |
| 5 |
Correct |
36 ms |
980 KB |
# of queries: 2980 |
| 6 |
Correct |
44 ms |
728 KB |
# of queries: 2989 |
| 7 |
Correct |
38 ms |
732 KB |
# of queries: 2961 |
| 8 |
Correct |
31 ms |
752 KB |
# of queries: 2831 |
| 9 |
Correct |
37 ms |
980 KB |
# of queries: 2973 |
| 10 |
Correct |
21 ms |
728 KB |
# of queries: 1729 |
| 11 |
Runtime error |
1 ms |
600 KB |
Execution killed with signal 11 |
| 12 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
32 ms |
972 KB |
# of queries: 2847 |
| 2 |
Correct |
30 ms |
728 KB |
# of queries: 2838 |
| 3 |
Correct |
34 ms |
984 KB |
# of queries: 2972 |
| 4 |
Correct |
46 ms |
984 KB |
# of queries: 2965 |
| 5 |
Correct |
36 ms |
980 KB |
# of queries: 2980 |
| 6 |
Correct |
44 ms |
728 KB |
# of queries: 2989 |
| 7 |
Correct |
38 ms |
732 KB |
# of queries: 2961 |
| 8 |
Correct |
31 ms |
752 KB |
# of queries: 2831 |
| 9 |
Correct |
37 ms |
980 KB |
# of queries: 2973 |
| 10 |
Correct |
21 ms |
728 KB |
# of queries: 1729 |
| 11 |
Runtime error |
1 ms |
600 KB |
Execution killed with signal 11 |
| 12 |
Halted |
0 ms |
0 KB |
- |
