Submission #60987

#	Time	Username	Problem	Language	Result	Execution time	Memory
60987		khsoo01	Broken Device (JOI17_broken_device)	C++11	100 / 100	95 ms	3744 KiB

Anna

#include "Annalib.h"

const int A[8] = {6, 7, 4, 3, 1, 2, 5, 0};
const int B[8] = {3, 2, 1, 0, 1, 0, 0, 0};
const int C[8] = {2, 2, 2, 2, 1, 1, 1, 0};

int chk[155];

void Anna (int N, long long X, int K, int P[]) {
	for(int i=0;i<N;i++) {
		chk[i] = 0;
	}
	for(int i=0;i<K;i++) {
		chk[P[i]] = 1;
	}
	for(int i=0;i<50;i++) {
		int T = chk[3*i] * 1 + chk[3*i+1] * 2 + chk[3*i+2] * 4;
		for(int j=0;j<8;j++) {
			if((T & A[j]) || X % (1<<C[j]) != B[j]) continue;
			for(int k=0;k<3;k++) {
				Set(3*i+k, !!(A[j]&(1<<k)));
			}
			X /= (1<<C[j]);
			break;
		}
	}
}

Bruno

#include "Brunolib.h"

const int A[8] = {6, 7, 4, 3, 1, 2, 5, 0};
const int B[8] = {3, 2, 1, 0, 1, 0, 0, 0};
const int C[8] = {2, 2, 2, 2, 1, 1, 1, 0};

long long Bruno (int N, int P[]) {
	long long ret = 0, bit = 1;
	for(int i=0;i<50;i++) {
		int T = P[3*i] * 1 + P[3*i+1] * 2 + P[3*i+2] * 4;
		for(int j=0;j<8;j++) {
			if(T != A[j]) continue;
			ret += bit * B[j];
			bit *= (1<<C[j]);
			break;
		}
	}
	return ret;
}

• Subtask 1: 100 / 100