#include<bits/stdc++.h>
#include "grader.h"
using namespace std;
vector < pair < vector < int > , int > > all;
vector < int > temp;
vector < int > tt;
queue < pair < vector < int > , int > > BFS;
vector < int > ans,ans2,ans3;
vector < int > findSequence (int N)
{
int i,j,ok=0,now=0,x1=0,y1=0,x;
if(N<=10)
{
for(i=0;i<(1<<(N/2+1));i++)
{
temp.clear();
for(j=0;j<(N/2+1);j++)
{
if(i&(1<<j)) temp.push_back(1);
else temp.push_back(0);
}
all.push_back(make_pair(temp,isSubsequence(temp)));
}
for(i=0;i<(1<<N);i++)
{
temp.clear();
for(j=0;j<N;j++)
{
if(i&(1<<j)) temp.push_back(1);
else temp.push_back(0);
}
ok=1;
for(auto j:all)
{
now=0;
for(auto k:temp)
{
if(now<N/2+1&&k==j.first[now]) now++;
}
if(now==N/2+1&&j.second==0) ok=0;
if(now!=N/2+1&&j.second==1) ok=0;
}
if(ok) return temp;
}
temp.clear();
return temp;
}
else
{
x=N;
for(i=0;i<N;i++)
{
temp.push_back(0);
if(!isSubsequence(temp))
{
x=i;
break;
}
}
while(x1<x&&y1<N-x&&ans.size()<=N/2)
{
temp.clear();
for(auto i:ans) temp.push_back(i);
if(x-x1<=(N-x-y1))
{
temp.push_back(1);
for(j=x1;j<x;j++) temp.push_back(0);
if(isSubsequence(temp))
{
y1++;
ans.push_back(1);
}
else
{
x1++;
ans.push_back(0);
}
}
else
{
temp.push_back(0);
for(j=y1;j<N-x;j++) temp.push_back(1);
if(isSubsequence(temp))
{
x1++;
ans.push_back(0);
}
else
{
y1++;
ans.push_back(1);
}
}
}
for(i=x1;i<x;i++) ans.push_back(0);
for(i=y1;i<N-x;i++) ans.push_back(1);
while(x1<x&&y1<N-x&&ans2.size()<=N/2)
{
temp.clear();
for(auto i:ans2) temp.insert(temp.begin(),i);
if(x-x1<=(N-x-y1))
{
temp.insert(temp.begin(),1);
for(j=x1;j<x;j++) temp.insert(temp.begin(),0);
if(isSubsequence(temp))
{
y1++;
ans2.insert(ans2.begin(),1);
}
else
{
x1++;
ans2.insert(ans2.begin(),0);
}
}
else
{
temp.insert(temp.begin(),0);
for(j=y1;j<N-x;j++) temp.insert(temp.begin(),1);
if(isSubsequence(temp))
{
x1++;
ans2.insert(ans2.begin(),0);
}
else
{
y1++;
ans2.insert(ans2.begin(),1);
}
}
}
for(i=x1;i<x;i++) ans2.insert(ans2.begin(),0);
for(i=y1;i<N-x;i++) ans2.insert(ans2.begin(),1);
ans3.clear();
for(i=0;i<N;i++) ans3.push_back(0);
for(i=0;i<ans.size();i++) ans3[i]=ans[i];
for(i=0;i<ans2.size();i++) ans3[N-(ans2.size()-i)]=ans2[i];
return ans3;
}
}
Compilation message
hidden.cpp: In function 'std::vector<int> findSequence(int)':
hidden.cpp:62:39: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
62 | while(x1<x&&y1<N-x&&ans.size()<=N/2)
| ~~~~~~~~~~^~~~~
hidden.cpp:101:40: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
101 | while(x1<x&&y1<N-x&&ans2.size()<=N/2)
| ~~~~~~~~~~~^~~~~
hidden.cpp:142:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
142 | for(i=0;i<ans.size();i++) ans3[i]=ans[i];
| ~^~~~~~~~~~~
hidden.cpp:143:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
143 | for(i=0;i<ans2.size();i++) ans3[N-(ans2.size()-i)]=ans2[i];
| ~^~~~~~~~~~~~
grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
28 | fprintf (fifo_out, "%d\n", ans.size ());
| ~^ ~~~~~~~~~~~
| | |
| int std::vector<int>::size_type {aka long unsigned int}
| %ld
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | for (int i=0; i<ans.size () && i < N; i++)
| ~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct: Maximum length of a query = 5 |
| 2 |
Correct |
2 ms |
256 KB |
Output is correct: Maximum length of a query = 6 |
| 3 |
Correct |
1 ms |
256 KB |
Output is correct: Maximum length of a query = 5 |
| 4 |
Correct |
2 ms |
256 KB |
Output is correct: Maximum length of a query = 5 |
| 5 |
Correct |
1 ms |
256 KB |
Output is correct: Maximum length of a query = 4 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
256 KB |
Output is not correct: The returned sequence does not match the hidden one |
| 2 |
Halted |
0 ms |
0 KB |
- |
