This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include <grader.h>
using namespace std;
void solve ( int n ) {
srand ( time ( NULL ) );
int q = 50 + 10 * ( q > 50 ), x, r;
for ( int i = 0; i < q / 2; i++ ) {
x = rand () % n + 1;
if ( cnt ( r = kth ( x ) ) > n / 3 ) {
say_answer ( r );
return;
}
}
say_answer ( -1 );
}
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