제출 #872828

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
872828		rainboy	Shuffle (NOI19_shuffle)	C++17	12 / 100	1 ms	1372 KiB

shuffle

#include "shuffle.h"
#include <vector>

using namespace std;

const int N = 1000, L = 10;	/* L = ceil(log2(N)) */

typedef vector<int> vi;
typedef vector<vi> vvi;

int pp[L];

vi solve(int n, int b, int k, int q, int s) {
	vi aa(n);
	if (s == 3) {
		int l = 0, p = 1;
		while (p < n)
			pp[l++] = p, p *= b;
		vi xx(n), idx(p);
		for (int i = 0; i < n; i++) {
			int d = i % b, x = d;
			for (int h = 1; h < l; h++) {
				int d_ = (i / pp[h] + d) % b;
				x += d_ * pp[h];
			}
			xx[i] = x, idx[x] = i;
		}
		vi xx_(n, 0);
		for (int h = 0; h < l; h++) {
			vvi iii(b);
			for (int d = 0; d < b; d++)
				iii[d].clear();
			for (int i = 0; i < n; i++)
				iii[xx[i] / pp[h] % b].push_back(i + 1);
			vvi aaa = shuffle(iii);
			for (int d = 0; d < b; d++)
				for (int g = 0; g < k; g++)
					xx_[aaa[d][g] - 1] += d * pp[h];
		}
		for (int a = 0; a < n; a++)
			aa[idx[xx_[a]]] = a + 1;
	}
	return aa;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 3
• Subtask 3: 12 / 12
• Subtask 4: 0 / 16
• Subtask 5: 0 / 15
• Subtask 6: 0 / 52