Submission #923141

#	Time	Username	Problem	Language	Result	Execution time	Memory
923141		gawr_gura	Broken Device (JOI17_broken_device)	C++17	45 / 100	28 ms	2952 KiB

Anna

#include <bits/stdc++.h>

#include "Annalib.h"
using namespace std;

mt19937 rng(0303);

void Anna(int N, long long X, int K, int P[]) {
        X += rng();
        assert(X < 1ll << 60);
        vector<int> wrong(N + 10);
        for (int i = 0; i < K; i++) {
                wrong[P[i]] = 1;
        }
        vector<int> ans(N + 10);
        for (int i = 0; i < N; i++) {
                if (wrong[i]) continue;
                if (X & 1) {
                        if (wrong[i + 2]) {
                                wrong[i + 1] = 1;
                                continue;
                        }
                        ans[i] = 1, ans[i + 1] = 0, ans[i + 2] = 1;
                        i++;
                } else {
                        if (wrong[i + 1]) {
                                wrong[i + 2] = 1;
                                continue;
                        }
                        ans[i] = 1, ans[i + 1] = 1;
                }
                X /= 2;
                if (X == 0) break;
        }
        for (int i = 0; i < N; i++) Set(i, ans[i]);
}

Bruno

#include <bits/stdc++.h>

#include "Brunolib.h"
using namespace std;
mt19937 rng(0303);

long long Bruno(int N, int A[]) {
        int64_t X = 0;
        vector<int> ans(N + 2);
        for (int i = 0; i < N; i++) ans[i] = A[i];
        int cnt = 0;
        for (int i = 0; i < N; i++) {
                if (ans[i] == 1) {
                        if (ans[i + 1] == 1) {
                                cnt++;
                        } else if (ans[i + 2] == 1) {
                                X += 1ll << cnt++;
                                i++;
                        } else {
                                continue;
                        }
                }
        }
        return X - rng();
}

• Subtask 1: 45 / 100