Submission #127372

#	Time	Username	Problem	Language	Result	Execution time	Memory
127372		Utaha	Broken Device (JOI17_broken_device)	C++14	85 / 100	44 ms	3312 KiB

Anna

#include "Annalib.h"

void Anna( int N, long long X, int K, int P[] ){
	bool ret[150]={0};
	bool notused[150]={0};
	for(int i=0;i<K;i++){
		notused[P[i]]=1;
		notused[P[i]^1]=1;
	}
	int pt=38;
	for(int i=0;i<N;i+=2) if(!notused[i]){
		long long type=X%3;
		X/=3;

		if(type==0){
			ret[i]=1;
			ret[i+1]=0;
		}
		else if(type==1){
			ret[i]=0;
			ret[i+1]=1;
		}
		else{
			ret[i]=ret[i+1]=1;
		}
		pt--;
		if(pt==0) break;
	}
	for(int i=0;i<N;i++) Set(i,ret[i]);
}

Bruno

#include "Brunolib.h"

long long Bruno( int N, int A[] ){
	long long ret=0;
	long long base=1;
	for(int i=0;i<N;i+=2){
		if(A[i]==0&&A[i+1]==0) continue;

		int type=-1;
		if(A[i]==1){
			if(A[i+1]==1) type=2;
			else type=0;
		}
		else type=1;

		ret+=base*type;
		base*=3;
	}
	return ret;
}

• Subtask 1: 85 / 100