#include <bits/stdc++.h>
#include "grader.h"
using namespace std;
void solve( int n ) {
int a, i, j, k;
vector <int> q, val, poz;
if ( n == 1 ) {
query( { 1 } );
return;
}
for ( i = 1; i <= n; i++ ) {
q.push_back( i );
val.push_back( -1 );
poz.push_back( -1 );
}
while ( query( q ) < n && query( q ) > 0 )
random_shuffle( q.begin(), q.end() );
if ( query( q ) == n )
return;
for ( i = 0; i < n; i++ ) {
for ( j = i + 1; j < n; j++ ) {
if ( i != j ) {
if ( val[i] != -1 && val[j] != -1 )
continue;
swap( q[i], q[j] );
a = query( q );
if ( a == 2 ) {
val[i] = q[i];
val[j] = q[j];
} else if ( a == 1 ) {
if ( val[i] == -1 && val[j] == -1 ) {
k = ((i + 1 != j) ? i + 1 : (i + 2 < n ? i + 2 : i - 1));
swap( q[i], q[k] );
a = query( q );
if ( a == 3 ) {
val[i] = q[i];
val[j] = q[j];
val[k] = q[k];
} else if ( a == 2 )
val[j] = q[j];
else if ( a == 1 )
val[j] = q[j];
else
val[i] = q[k];
swap( q[i], q[k] );
} else {
if ( val[i] != q[i] )
val[j] = q[j];
else if ( val[j] != q[j] )
val[i] = q[i];
}
}
swap( q[i], q[j] );
}
}
}
query( val );
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
200 KB |
Correct! Number of queries: 26 |
2 |
Incorrect |
1 ms |
200 KB |
Integer -1 violates the range [1, 4] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
200 KB |
Correct! Number of queries: 26 |
2 |
Incorrect |
1 ms |
200 KB |
Integer -1 violates the range [1, 4] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
200 KB |
Correct! Number of queries: 26 |
2 |
Incorrect |
1 ms |
200 KB |
Integer -1 violates the range [1, 4] |
3 |
Halted |
0 ms |
0 KB |
- |