Submission #990640

#	Time	Username	Problem	Language	Result	Execution time	Memory
990640		Saul0906	Broken Device (JOI17_broken_device)	C++14	85 / 100	31 ms	2716 KiB

Anna

#include "Annalib.h"
#include <bits/stdc++.h>
#define rep(a,b,c) for(int a=b; a<c; a++)
#define repa(a,b) for(auto a: b)
#define repr(a,b,c) for(int a=b-1; a>c-1; a--)
 
using namespace std;


void Anna( int N, long long X, int K, int P[] ){
	mt19937_64 rnd(123456789);
	bool b[150]{};
	int pp[150];
	rep(i,0,150) pp[i]=i;
	shuffle(pp,pp+150,rnd);
	rep(i,0,K) b[P[i]]=1;
	int d[38]{}, p=0;
	while(X){
		d[p++]=X%3;
		X/=3;
	}
	p=0;
	for( int i = 0; i < N; i+=2 ){
		if(!b[pp[i]] && !b[pp[i+1]] && p<38){
			if(d[p]==0) Set(pp[i],1), Set(pp[i+1],1); //1,1 = 0
			if(d[p]==1) Set(pp[i],1), Set(pp[i+1],0); //1,0 = 1
			if(d[p]==2) Set(pp[i],0), Set(pp[i+1],1); //0,1 = 2
			p++;
		}else Set(pp[i],0), Set(pp[i+1],0);
	}
}

Bruno

#include "Brunolib.h"
#define rep(a,b,c) for(int a=b; a<c; a++)
#define ll long long
#include <bits/stdc++.h>
 
using namespace std;

ll fpow(ll x, ll y){
	if(!y) return 1;
	if(y&1) return fpow(x,y-1)*x;
	ll z=fpow(x,y/2);
	return z*z;
}
 
long long Bruno( int N, int A[] ){
	mt19937_64 rnd(123456789);
	ll d[38]{}, p=0;
	ll X=0;
	int pp[150];
	rep(i,0,150) pp[i]=i;
	shuffle(pp,pp+150,rnd);
	rep(i,0,N){
		if(A[pp[i]]==0 && A[pp[i+1]]==0){
			i++;
			continue;
		}
		if(A[pp[i]]==1 && A[pp[i+1]]==1) d[p++]=0;
		if(A[pp[i]]==1 && A[pp[i+1]]==0) d[p++]=1;
		if(A[pp[i]]==0 && A[pp[i+1]]==1) d[p++]=2;
		i++;
		if(p==38) break;
	}
	rep(i,0,38){
		X+=d[i]*fpow(3,i);
	}
	return X;
}

• Subtask 1: 85 / 100