Submission #68589

#	Time	Username	Problem	Language	Result	Execution time	Memory
68589		aome	Zalmoxis (BOI18_zalmoxis)	C++17	100 / 100	256 ms	7928 KiB

zalmoxis

#include <bits/stdc++.h>
 
using namespace std;
 
vector<int> vres, vcur, vadd;
 
void add() {
	int tmp = vcur.back();
	vadd.push_back(vres.size());
	vres.push_back(tmp);
	++tmp;
	vcur.pop_back();
	while (vcur.size() && vcur.back() == tmp) {
		vcur.pop_back(), tmp++;
	}
	vcur.push_back(tmp);	
}
 
void cal(int val, int need) {
	// assert(need <= 1 << val);
	if (need == 1) {
		cout << val << ' '; return;
	}
	int tmp = min(need - 1, (1 << (val - 1)));
	cal(val - 1, tmp), cal(val - 1, need - tmp);
}
 
int main() {
	ios::sync_with_stdio(false);
	int n, m, x;
	cin >> n >> m >> x;
	vres.push_back(x), vcur.push_back(x);
	for (int i = 1; i < n; ++i) {
		cin >> x;
		if (vcur.back() > x) {
			vres.push_back(x), vcur.push_back(x);
		}
		else {
			while (vcur.back() < x) add();
			if (vcur.back() > x) {
				vres.push_back(x), vcur.push_back(x);
			}
			else {
				vres.push_back(x);
				++x;
				vcur.pop_back();
				while (vcur.size() && vcur.back() == x) {
					vcur.pop_back(), x++;
				}
				vcur.push_back(x);
			}
		}
	}
	while (vcur.back() != 30) add();
	// assert(vadd.size() <= m);
	int ptr = 0;
	for (int i = 0; i < vres.size(); ++i) {
		if (ptr < vadd.size() && vadd[ptr] == i) {
			++ptr;
			int tmp = min(m - ((int)vadd.size() - ptr), 1 << vres[i]);
			m -= tmp;
			cal(vres[i], tmp);
		}
		else cout << vres[i] << ' '; 
	}
}

Compilation message (stderr)

zalmoxis.cpp: In function 'int main()':
zalmoxis.cpp:57:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < vres.size(); ++i) {
                  ~~^~~~~~~~~~~~~
zalmoxis.cpp:58:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (ptr < vadd.size() && vadd[ptr] == i) {
       ~~~~^~~~~~~~~~~~~

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