제출 #365476

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
365476		tfg	Zalmoxis (BOI18_zalmoxis)	C++17	100 / 100	282 ms	10476 KiB

zalmoxis

#include <iostream>
#include <vector>
#include <chrono>
#include <random>
#include <cassert>

std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());

const int ms = 1001000;
int n, k;
int a[ms], b[ms];

int main() {
	std::ios_base::sync_with_stdio(false); std::cin.tie(NULL);
	std::cin >> n >> k;
	for(int i = 0; i < n; i++) {
		std::cin >> a[i];
	}
	for(int p = 0; p < 30; p++) {
		int j = 0;
		for(int i = 0; i < n;) {
			if(std::abs(a[i]) > p) {
				b[j++] = a[i++];
			} else {
				int sum = 0;
				//std::cout << "starting from " << i << std::endl;
				while(i < n && std::abs(a[i]) <= p) {
					b[j++] = a[i];
					sum += 1 << std::abs(a[i++]);
				}
				//std::cout << "sum " << sum << ", ending at " << i << std::endl;
				sum %= 1 << (p+1);
				assert(sum == 0 || sum == (1 << p));
				if(sum) {
					b[j++] = -p;
					k--;
				}
			}
		}
		n = j;
		std::swap(a, b);
	}
	for(int i = 0; i < n; i++) {
		if(a[i] >= 0) {
			std::cout << a[i] << ' ';
			continue;
		}
		std::vector<int> wtf(1, -a[i]);
		while(!wtf.empty()) {
			if(k == 0 || wtf.back() == 0) {
				std::cout << wtf.back() << ' ';
				wtf.pop_back();
				continue;
			} else {
				int val = wtf.back();
				wtf.pop_back();
				wtf.push_back(val-1);
				wtf.push_back(val-1);
				k--;
			}
		}
	}
	std::cout << '\n';
}

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70