Submission #328672

#	Time	Username	Problem	Language	Result	Execution time	Memory
328672		arayi	Carnival (CEOI14_carnival)	C++17	100 / 100	8 ms	404 KiB

carnival

//Arayi
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <queue>
#include <stack>
#include <algorithm>
#include <math.h>
#include <vector>
#include <cstring>
#include <ctime>
#include <set>
#include <bitset>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <ctime>
#include <climits>
#include <cassert>
#include <chrono>
#include <random>
#include <complex>

#define fr first
#define sc second
#define MP make_pair
#define ad push_back
#define PB push_back
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define lli long long int
#define y1 arayikhalatyan
#define j1 jigglypuff
#define ld long double
#define itn int
#define pir pair<int, int> 
#define all(x) (x).begin(), (x).end()
#define str string
#define enl endl
#define en endl
#define cd complex<long double>
#define vcd vector<cd>
#define vii vector<int>
#define vlli vector<lli>
using namespace std;

lli gcd(lli a, lli b) { return (b == 0LL ? a : gcd(b, a % b)); }
ld dist(ld x, ld y1, ld x2, ld y2)
{
    return sqrt((x - x2) * (x - x2) + (y1 - y2) * (y1 - y2));
}
lli S(lli a)
{
    return (a * (a + 1LL)) / 2LL;
}
mt19937 rnd(363542);
char vow[] = { 'a', 'e', 'i', 'o', 'u' };
int dx[] = { 0, -1, 0, 1, -1, -1, 1, 1, 0 };
int dy[] = { -1, 0, 1, 0, -1, 1, -1, 1, 0 };


const int N = 5e5 + 30;
const lli mod = 998244353;
const ld pi = acos(-1);
const ld e = 1e-13;

lli bp(lli a, lli b = mod - 2LL)
{
    lli ret = 1;
    while (b)
    {
        if (b & 1) ret *= a, ret %= mod;
        a *= a;
        a %= mod;
        b >>= 1;
    }
    return ret;
}
ostream& operator<<(ostream& c, pir a)
{
    c << a.fr << " " << a.sc;
    return c;
}
struct pt
{
    lli x, y;
    int ind;
    int bl;
    bool operator==(const pt& a)
    {
        return ind == a.ind;
    }
    bool operator<(const pt& b)
    {
        if (x == b.x) return y < b.y;
        return x < b.x;
    }
};



vii fp;
int n;
int pat[155];
int ask(int l, int r, int q)
{
    int sm;
    cout << r - l + 2 << " ";
    for (int i = l; i <= r; i++)
        cout << fp[i] << " ";
    cout << q << endl;
    cin >> sm;
    return sm;
}
int main()
{
    fastio;
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        int sm = ask(0, (int)fp.size() - 1, i);
        if (sm == fp.size() + 1) fp.ad(i), pat[i] = fp.size();
        else
        {
            int l = 0, r = (int)fp.size() - 1, ans = (int)fp.size() - 1;
            while (l <= r)
            {
                int mid = (l + r) / 2;
                int sm = ask(l, mid, i);
                if (sm == mid - l + 1) ans = mid, r = mid - 1;
                else l = mid + 1;
            }
            pat[i] = pat[fp[ans]];
        }
    }
    cout << "0 ";
    for (int i = 0; i < n; i++) cout << pat[i + 1] << " ";
    cout << endl;
    return 0;
}

/*

  __
*(><)*
  \/ /
  ||/
--||
  ||
  /\
 /  \
/    \

*/

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:122:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  122 |         if (sm == fp.size() + 1) fp.ad(i), pat[i] = fp.size();
      |             ~~~^~~~~~~~~~~~~~~~

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