#include <bits/stdc++.h>
#include "chameleon.h"
//https://cms.ioi-jp.org/tasks/chameleon/descriptionusing namespace std;
using namespace std;
int binarysearch(vector<int>haha){
int start=0,end=haha.size()-1;
while(start!=end-1){
int middle=(start+end)/2;
vector<int>empty;
for(int i=middle;i<haha.size();i++){
empty.push_back(haha[i]);
}
if(Query(empty)==empty.size()){
end=middle;
}
else{
start=middle;
}
}
return end;
}
void Solve(int N){
int n=N*2;
vector<bool>solved(n+1,0);
map<int,vector<int>>theval;
vector<int>one;
vector<int>two;
vector<int>three;
vector<int>four;
for(int i=1;i<=n;i++){
one.push_back(i);
if(Query(one)!=one.size()){
int pos=binarysearch(one);
theval[i].push_back(one[pos]);
theval[one[pos]].push_back(i);
one.pop_back();
}
two.push_back(i);
if(Query(two)!=two.size()){
int pos=binarysearch(two);
theval[i].push_back(two[pos]);
theval[two[pos]].push_back(i);
two.pop_back();
}
three.push_back(i);
if(Query(three)!=three.size()){
int pos=binarysearch(three);
theval[i].push_back(three[pos]);
theval[three[pos]].push_back(i);
three.pop_back();
}
four.push_back(i);
if(Query(four)!=four.size()){
int pos=binarysearch(four);
theval[i].push_back(four[pos]);
theval[four[pos]].push_back(i);
four.pop_back();
}
}
//the N*3 where we find the graph
map<int,vector<int>>graph;
int haha=0;
for(int i=1;i<=n;i++){
if(solved[i]==1)continue;
if(theval[i].size()==1){haha++;Answer(i,theval[i][0]);solved[i]=1;solved[theval[i][0]]=1;continue;}
if(Query({i,theval[i][0],theval[i][1]})==1){graph[i].push_back(theval[i][2]);graph[theval[i][2]].push_back(i);}
else if(Query({i,theval[i][0],theval[i][2]})==1){graph[i].push_back(theval[i][1]);graph[theval[i][1]].push_back(i);}
else if(Query({i,theval[i][2],theval[i][1]})==1){graph[i].push_back(theval[i][0]);graph[theval[i][0]].push_back(i);}
}
for(int i=1;i<=n;i++){
if(solved[i]==1){continue;}
//assert(graph[i].size()<=2);
int a=graph[i][0],b=graph[i][1];
for(int j=0;j<3;j++){
if(theval[i][j]!=a&&theval[i][j]!=b&&solved[theval[i][j]]==0){Answer(i,theval[i][j]);solved[i]=1;solved[theval[i][j]]=1;break;}
}
}
}
Compilation message
chameleon.cpp: In function 'int binarysearch(std::vector<int>)':
chameleon.cpp:11:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=middle;i<haha.size();i++){
~^~~~~~~~~~~~
chameleon.cpp:14:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Query(empty)==empty.size()){
~~~~~~~~~~~~^~~~~~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Query(one)!=one.size()){
~~~~~~~~~~^~~~~~~~~~~~
chameleon.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Query(two)!=two.size()){
~~~~~~~~~~^~~~~~~~~~~~
chameleon.cpp:48:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Query(three)!=three.size()){
~~~~~~~~~~~~^~~~~~~~~~~~~~
chameleon.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Query(four)!=four.size()){
~~~~~~~~~~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
