Submission #710032

#	Time	Username	Problem	Language	Result	Execution time	Memory
710032		vjudge1	Carnival (CEOI14_carnival)	C++17	0 / 100	5 ms	208 KiB

carnival

//#pragma GCC optimize ("O2")
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define ld long double
#define pll pair<ll,ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
const ll maxn = 200;
vector<ll> T[200];
vector<ll> pos;
ll A[maxn];
bool ask(ll l, ll r, ll k)
{
    vector<ll> save;
    for(int i = l; i<= r; i++) save.push_back(pos[i]);
    save.push_back(k);
    cout << save.size() << " ";
    for(auto u: save) cout << u << " ";
    cout << "\n";
    ll vl; cin >> vl;
    if(vl==save.size()) return 0;
    else return 1;
}
ll n;
void fi(ll l, ll r, ll num)
{
    if(l==r)
    {
        A[num] = l;
        return;
    }
    else
    {
        ll mid = ((l+r)>>1);
        if(ask(l, mid, num)) fi(l, mid, num);
        else fi(mid+1, r, num);
    }
}
void solve()
{
    cin >> n;
    pos.push_back(1);
    A[1] = 0;
    for(int i = 2; i<= n; i++)
    {
        if(!ask(0, pos.size()-1, i))
        {
            pos.push_back(i);
            A[i] = pos.size()-1;
        }
        else
        {
            fi(0, pos.size()-1, i);
        }
    }
    for(int i = 1; i<= n; i++) cout << A[i] << " ";
}
signed main()
{
    //ios_base::sync_with_stdio(NULL) ; cin.tie(nullptr) ; cout.tie(nullptr);
    //freopen("case_06.txt","r",stdin);
    //freopen("BAJ.inp","r",stdin);
    //sfreopen("BAJ.out","w",stdout);
    //ll x; cin >> x; Debug(x);
    ll test_case = 1; //cin >> test_case;
    //sang();
    for(int i = 1; i<=test_case; i++)
    {
        //cout << n << " " << m << "\n";
        //if(n==0||m==0) return 0;
        solve();
    }
}

Compilation message (stderr)

carnival.cpp: In function 'bool ask(long long int, long long int, long long int)':
carnival.cpp:25:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     if(vl==save.size()) return 0;
      |        ~~^~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20