Submission #923603

#	Time	Username	Problem	Language	Result	Execution time	Memory
923603		Regulus	Super Dango Maker (JOI22_dango3)	C++17	0 / 100	2 ms	604 KiB

dango3

#include "dango3.h"
#include <bits/stdc++.h>
#define IO ios::sync_with_stdio(false);cin.tie(0);
#define debug(x) cerr << #x << " = " << (x) << ' '
#define bug(x) cerr << (x) << ' '
#define endl cerr << '\n'
#define all(v) (v).begin(), (v).end()
#define SZ(v) (ll)(v).size()
#define lowbit(x) (x)&-(x)
#define pb emplace_back
#define F first
#define S second
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;

//#define TEST

const int N = 50;
const int Mxm = 10005;
const int INF = 2e9;
int n, m;
bool inq[Mxm];
vector<int> v[N], pre[N], tmp;

#ifdef TEST
int a[N], cnt[N];

inline int Query(vector<int> &v)
{
    cout << "? ";
    for (int x : v) cout << x << ' '; cout << '\n';

    int mn = INF;
    for (int i=1; i <= n; ++i) cnt[i] = 0;
    for (int x : v) ++cnt[a[x]];
    for (int i=1; i <= n; ++i) mn = min(mn, cnt[i]);
    int ret = mn;
    cout << "ret = " << ret << '\n';
    return ret;
}

inline void Answer(vector<int> &v)
{
    cout << "! ";
    for (int x : v) cout << x << ' '; cout << '\n';
}
#endif

inline bool chk(int id, int del_id)
{
    for (int i=1; i <= n*m; ++i) inq[i] = 1;
    inq[del_id] = 0;
    for (int x : pre[id]) inq[x] = 0;

    tmp.clear();
    for (int i=1; i <= n*m; ++i) if (inq[i]) tmp.pb(i);
    int ret = Query(tmp);
    return ret == m - id;
}

void Solve(int n, int m)
{
    int i, j, k, tot=0;

    for (i=1; i <= n*m; ++i)
    {
        int lb = 1, ub = tot + 1, mid;
        while (lb < ub)
        {
            mid = (lb + ub) >> 1;
            if (chk(mid, i)) ub = mid;
            else lb = mid + 1;
        }
        //cout << "lb = " << lb << "\n\n";
        tot = max(tot, lb);
        v[lb].pb(i);
        for (j=lb; j <= m; ++j) pre[j].pb(i);
    }

    for (i=1; i <= m; ++i) Answer(v[i]);
}

#ifdef TEST
int main(void)
{ IO
    int i;

    cin >> n >> m;
    for (i=1; i <= n*m; ++i) cin >> a[i];

    Solve(n, m);



    return 0;
}
#endif

Compilation message (stderr)

dango3.cpp: In function 'void Solve(int, int)':
dango3.cpp:64:15: warning: unused variable 'k' [-Wunused-variable]
   64 |     int i, j, k, tot=0;
      |               ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5
• Subtask 3: 0 / 15
• Subtask 4: 0 / 78