Submission #26807

#	Time	Username	Problem	Language	Result	Execution time	Memory
26807		wangyenjen	Broken Device (JOI17_broken_device)	C++14	45 / 100	56 ms	4636 KiB

Anna

/// Author: Wang, Yen-Jen
#include "Annalib.h"
#include <bits/stdc++.h>

using namespace std;

static bool st[150];

void Anna(int N , long long X , int K , int P[]) {
    memset(st , 0 , sizeof(st));
    for(int i = 0; i < K; i++) st[P[i]] = 1;
    int c = 0;
    for(int i = 0; i < N; i++) {
        if(c == 60) Set(i , 0);
        else {
            if(i + 3 < N && !st[i] && !st[i + 1] && !st[i + 2] && !st[i + 3]) {
                Set(i , 1);
                Set(i + 1 , ((X>>c)&1));
                c++;
                Set(i + 2 , ((X>>c)&1));
                c++;
                Set(i + 3 , ((X>>c)&1));
                c++;
                i += 3;
            }
            else Set(i , 0);
        }
    }
}

Bruno

/// Author: Wang, Yen-Jen
#include "Brunolib.h"
#include <bits/stdc++.h>

using namespace std;

long long Bruno(int N , int A[]) {
    long long X = 0;
    int cc = 0;
    for(int i = 0; i < N - 3; i++) {
        if(cc == 60) break;
        if(A[i]) {
            if(A[i + 1]) X |= (1ll<<cc);
            cc++;
            if(A[i + 2]) X |= (1ll<<cc);
            cc++;
            if(A[i + 3]) X |= (1ll<<cc);
            cc++;
            i += 3;
        }
    }
    return X;
}

• Subtask 1: 45 / 100