제출 #419850

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
419850		Kevin_Zhang_TW	Broken Device (JOI17_broken_device)	C++17	65 / 100	52 ms	2476 KiB

Anna

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
#include "Annalib.h"

// 11 means 1
// 10 means 0
void Anna( int N, long long X, int K, int P[] ){
	vector<int> bad(N);
	for (int i = 0;i < K;++i)
		bad[ P[i] ] = true;

	auto try_gen = [&](ll X, bool flip) {

		vector<int> res(N);

		int cnt = 0;
		for (int i = 0;i < N;++i) {
			if (bad[i]) continue;
			if (flip ^ ((i&1) == (X&1))) {
				if (++cnt > 60) break;
				res[i] = true;
				X>>=1;
			}
		}

		return res;
	};


	auto a = try_gen(X, false);
	auto b = try_gen(X, true);

	vector<int> res;

	DE(count(AI(a), 1), count(AI(b), 1));

	if (count(AI(a), 1) >= count(AI(b), 1)) {
		res = a;
	}
	else {
		res = b;
		for (int i = N-1;i >= 0;--i) if (!bad[i]) {
			res[i] = true;
			break;
		}
	}
for (int i = 0;i < N;++i)
		Set(i, res[i]);
}

Bruno

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
namespace {
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
}
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
#include "Brunolib.h"

// 11 means 1
// 10 means 0
long long Bruno( int N, int A[] ){

	vector<int> bit;

	for (int i = 0, j = 0;i < N;++i) {
		if (A[i] == 1) {
			if (i&1) bit.pb(1);
			else bit.pb(0);
			++j;
		}
	}

	if (bit.size() > 60) {
		bit.resize(60);
		for (int &i : bit) i ^= 1;
	}

	reverse(AI(bit));

	ll X = 0;

	for (int i = 0;i < 60;++i)
		X = (X<<1) + bit[i];

	return X;
}

컴파일 시 표준 에러 (stderr) 메시지

Anna.cpp: In function 'void Anna(int, long long int, int, int*)':
Anna.cpp:14:17: warning: statement has no effect [-Wunused-value]
   14 | #define DE(...) 0
      |                 ^
Anna.cpp:51:2: note: in expansion of macro 'DE'
   51 |  DE(count(AI(a), 1), count(AI(b), 1));
      |  ^~

• Subtask 1: 65 / 100