Submission #436196

#	Time	Username	Problem	Language	Result	Execution time	Memory
436196		infinite_iq	Carnival (CEOI14_carnival)	C++14	100 / 100	15 ms	328 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
#define sqr 500
//#define mp make_pair
#define mid (l+r)/2
#define le node * 2
#define ri node * 2 + 1
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef short int si;
typedef double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
typedef pair<double,ll>pdi;
const ll inf=1e18;
const ll mod=1e9+7;
const ld Pi=acos(-1);
const ll Mx = 2e5+9 ;
int n ;
int a [209] ;
vi v [209] , ret ;
int query (vi v) {
    if ( v .size () == 1 ) return 1 ;
    cout << v .size () << " " ;
    for ( auto u : v ) cout << u << " " ;
    cout << endl ;
    int x ;
    cin >> x ;
    return x ;
}
int build ( int l , int r , int more ) {
    vi v ;
    for ( int i = l ; i<= r ; i ++ ) v .pb (ret[i]) ;
    v .pb (more) ;
    return query(v) ;
}
int main () {
    cin >> n ;
    for ( int i = 1 ; i <= n ; i ++ ) {
        ret .pb (i) ;
        int x = query (ret) ;
        if ( x == ret .size () ) {
            v [i] .pb (i) ;
            continue ;
        }

        ret .pop_back () ;

        int l = -1 , r = ret .size () -1;
        while ( r - l > 1 ) {
            if ( build (0,mid,i) == mid + 2 ) l = mid ;
            else r = mid ;
        }
        v [ret[r]] .pb (i) ;
    }

    //
    int timer = 1 ;
    for ( int i = 1 ; i <= n ; i ++ ) {
        if ( v [i] .size () ) {
            for ( auto u : v [i] ) {
                a [u] = timer ;
            }
            timer ++ ;
        }
    }
    cout << 0 << " " ;
    for ( int i = 1 ; i <= n ; i ++ ) cout << a [i] << " " ;
    cout << endl ;
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:57:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         if ( x == ret .size () ) {
      |              ~~^~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20