Submission #930703

#	Time	Username	Problem	Language	Result	Execution time	Memory
930703		Tuanlinh123	Mouse (info1cup19_mouse)	C++17	34 / 100	148 ms	684 KiB

mouse

#include "grader.h"
#include<bits/stdc++.h>
#define ll int
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
using namespace std;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

void solve(ll n) 
{
    ll q=n>50?2400:n>7?400:50, cnt=-1;
    vector <vector <ll>> p(n+1, vector <ll> (n+1, 1));
    vector <ll> crr(n);
    while (1)
    {
        cnt++;
        if (cnt%n==0)
        {
            iota(crr.begin(), crr.end(), 1);
            shuffle(crr.begin(), crr.end(), rng);
        }
        else rotate(crr.begin(), crr.begin()+1, crr.end());
        ll cnt=0;
        for (ll i=0; i<n; i++)
            cnt+=p[i+1][crr[i]];
        if (!cnt) continue;
        ll q=query(crr);
        if (q==n) return;
        if (!q) 
        {
            for (ll j=0; j<n; j++)
                p[j+1][crr[j]]=0;
            bool ok=1;
            for (ll j=1; j<=n; j++)
            {
                ll cnt=0;
                for (ll k=1; k<=n; k++)
                    cnt+=p[j][k];
                if (cnt>1) ok=0;
            }
            if (ok)
            {
                vector <ll> ans;
                for (ll j=1; j<=n; j++)
                    for (ll k=1; k<=n; k++)
                        if (p[j][k]) {ans.pb(k); break;}
                query(ans); return;
            }
        }
    }
}

Compilation message (stderr)

mouse.cpp: In function 'void solve(int)':
mouse.cpp:16:8: warning: unused variable 'q' [-Wunused-variable]
   16 |     ll q=n>50?2400:n>7?400:50, cnt=-1;
      |        ^

• Subtask 1: 9.000004 / 13
• Subtask 2: 25.00001 / 38
• Subtask 3: 0 / 49