Submission #1135058

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135058		Saul0906	Rarest Insects (IOI22_insects)	C++20	10 / 100	98 ms	432 KiB

insects

#include "insects.h"
#include <vector>
#include <bits/stdc++.h>
#define rep(a,b,c) for(ll a=b; a<c; a++)
#define repr(a,b,c) for(ll a=b-1; a>c-1; a--)
#define repa(a,b) for(auto a:b)
#define ll long long
#define pll pair<ll, ll>
#define fi first
#define se second
#define pb push_back
#define mid ((l+r)>>1)
#define ppb pop_back()

using namespace std;
using vi = vector<int>;

const int N=2005;
int dsu[N], sz[N];

int find(int x){
	if(dsu[x]==-1) return x;
	return dsu[x]=find(dsu[x]);
}

void join(int a, int b){
	a=find(a);
	b=find(b);
	if(a==b) return;
	dsu[a]=b;
	sz[b]+=sz[a];
}

int min_cardinality(int n) {
	int ans=n;
	vi a;
	fill(dsu,dsu+n,-1);
	fill(sz,sz+n,1);
	rep(i,0,n){
		move_inside(i);
		rep(j,i+1,n){
			move_inside(j);
			if(press_button()==2) join(i,j);
			move_outside(j);
		}
		move_outside(i);
	}
	rep(i,0,n) ans=min(ans,sz[find(i)]);
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 75