Submission #918163

#	Time	Username	Problem	Language	Result	Execution time	Memory
918163		AtabayRajabli	Carnival (CEOI14_carnival)	C++17	0 / 100	2 ms	344 KiB

carnival

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

// author : a1abay
// (a / b) % c = (a * b ^ (mod - 2)) % c;

#define pb          push_back
#define pii         pair<int, int>
#define pll         pair<ll, ll>
#define all(v)      v.begin(), v.end()
#define whole(a)    a+1, a+1+n
#define se          second
#define fi          first
#define int         ll
#define print(k)    cerr << "Ans : "; cout << k << endl;
#define ins         insert
#define bpc         __builtin_popcountll
#define skip        continue
#define endll          '\n'
#define gcd(a, b)   __gcd(a, b)
#define lcm(a, b)   (a*b / (__gcd(a, b)))
#define mpr         make_pair
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> 

typedef long long           ll;
typedef unsigned long long  ull;
typedef long double         ld;
const int sz =              5e5 + 5;
using namespace             std;

void open(string s, string f)
{
    freopen((s + ".txt").c_str(), "r", stdin);
    freopen((f + ".txt").c_str(), "w", stdout);
}

const int mod = 1e9 + 7;
int P = 37;

int n;

void solve()
{
    cin >> n;

    vector<int> v;
    int ans[n + 1] = {0};
    ans[1] = 1;
    v.pb(1);
    int last = 1, ind = 2;
    for(int i = 2; i <= n; i++)
    {
        v.pb(ind);
        for(int j : v)cout << j << " ";
        cout << endl;

        int cnt;
        cin >> cnt;

        if(cnt == last + 1)
        {
            ans[i] = ind;
            last = cnt;
            ind++;
        }
        else
        {
            v.pop_back();

            int l = 0, r = v.size() - 1;
            while (l <= r)
            {
                int mid = (l + r) / 2;
                for(int j = l; j <= mid; j++)cout << v[j] << " ";
                cout << ind << endl;

                int cnt;
                cin >> cnt;

                if(cnt == mid - l + 1 + 1)l = mid + 1;
                else r = mid - 1;
            }
            ans[i] = v[r + 1];
            ind++;
        }
    }
    cout << 0 << " ";
    for(int i = 1; i <= n; i++)cout << ans[i] << " ";
    cout << endl;
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    // open("in", "out");

    int t = 1;
    // cin >> t;
    
    while(t--)
    {
        solve();
    }
    return 0;
}  

Compilation message (stderr)

carnival.cpp: In function 'void open(std::string, std::string)':
carnival.cpp:35:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |     freopen((s + ".txt").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
carnival.cpp:36:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     freopen((f + ".txt").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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