#include <bits/stdc++.h>
#include "chameleon.h"
#define MAXN 1007
using namespace std;
namespace {
int n,bad[MAXN];
vector<int> to[MAXN];
vector< pair<int,int> > sol;
vector<int> l,r,w,perm;
void bin(){
for(int curr:l){
int lt=0,rt=n+1,mid,st=0;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(r[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(r[rt-1]);
lt=st=rt; rt=n+1;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(r[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(r[rt-1]);
lt=st=rt; rt=n+1;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(r[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(r[rt-1]);
}
for(int curr:r){
int lt=0,rt=n+1,mid,st=0;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(l[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(l[rt-1]);
lt=st=rt; rt=n+1;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(l[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(l[rt-1]);
lt=st=rt; rt=n+1;
while(lt+1<rt){
mid=(lt+rt)/2;
w.clear();
for(int f=st;f<mid;f++)w.push_back(l[f]);
w.push_back(curr);
if(Query(w)!=w.size()){
rt=mid;
}else{
lt=mid;
}
}
if(rt!=n+1)to[curr].push_back(l[rt-1]);
}
}
} // namespace
void Solve(int N) {
n=N;
for(int i=1;i<=n;i++)l.push_back(i);
for(int i=n+1;i<=2*n;i++)r.push_back(i);
bin();
for(int i=1;i<=2*n;i++){
if(to[i].size()==1)continue;
else{
if(Query({i,to[i][0],to[i][1]})==1)bad[i]=to[i][2];
else if(Query({i,to[i][0],to[i][2]})==1)bad[i]=to[i][1];
else if(Query({i,to[i][2],to[i][1]})==1)bad[i]=to[i][0];
}
}
for(int i=1;i<=2*n;i++){
for(int f:to[i]){
if(bad[i]==f or bad[f]==i)continue;
if(i<f)Answer(i,f);
}
}
}
/*
4
1 0 1 0 0 1 1 0
4 4 1 2 1 2 3 3
4 3 8 7 6 5 2 1
*/
Compilation message
chameleon.cpp: In function 'void {anonymous}::bin()':
chameleon.cpp:27:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
chameleon.cpp:44:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
chameleon.cpp:61:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
61 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
chameleon.cpp:81:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
81 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
chameleon.cpp:98:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
98 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
chameleon.cpp:115:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
115 | if(Query(w)!=w.size()){
| ~~~~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Incorrect |
21 ms |
500 KB |
Wrong Answer [3] |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
344 KB |
Wrong Answer [1] |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
344 KB |
Wrong Answer [1] |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Incorrect |
27 ms |
492 KB |
Wrong Answer [3] |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Incorrect |
21 ms |
500 KB |
Wrong Answer [3] |
| 4 |
Halted |
0 ms |
0 KB |
- |
