제출 #1085044

#제출 시각아이디문제언어결과실행 시간메모리
1085044TimoshGap (APIO16_gap)C++17
42.88 / 100
58 ms5964 KiB
#include <bits/stdc++.h>
#include "gap.h"
using namespace std;

long long mn = 0, mx = 0;
set<long long> st;
void gen(long long l, long long r)
{
	if (l > r)
		return;
	MinMax(l, r, &mn, &mx);
	if (mn == -1)
		return;
	st.insert(mn);
	st.insert(mx);
	if (mn == mx)
		return;
	l = mn + 1, r = mx - 1;
	long long m = l + (r - l) / 2;
	gen(l, m);
	gen(m + 1, r);
}

long long findGap(int T, int N)
{
	long long ans = 1;
	if (T == 2)
	{
		gen(0, 1e18);
	}
	else
	{
		long long l = 0, r = 1e18;
		while (1)
		{
			MinMax(l, r, &mn, &mx);
			if (mn == -1)
				break;
			st.insert(mn);
			st.insert(mx);
			l = mn + 1, r = mx - 1;
			if (mn == mx || (long long)st.size() >= N)
				break;
		}
	}
	long long last = *st.begin();
	for (auto &i : st)
		ans = max(ans, i - last), last = i;
	return ans;
}
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