Submission #1191245

#	Time	Username	Problem	Language	Result	Execution time	Memory
1191245		Tsagana	Gap (APIO16_gap)	C++20	100 / 100	44 ms	1096 KiB

gap

#include "gap.h"
#include "bits/stdc++.h"

using namespace std;

#define lnl long long

lnl n, ans, k, mn, mx, l, r, inf = 1e18;

lnl findGap(int T, int N) {
	MinMax(0, LLONG_MAX, &l, &r);
	if (T == 1) {
		N = (N - 1) / 2;
		while (N--) {
			MinMax(l + 1, r - 1, &mn, &mx);
			ans = max(ans, max(r - mx - (lnl)(mx == -1)*inf, mn - l));
			l = mn, r = mx;
		}
		return max(ans, r - l);
	}
	lnl a = (r - l - 3 + N) / (N - 1);
	k = l;
	while (l < r) {
		MinMax(l, min(l + a, r), &mn, &mx);
		if (~mn) {
			ans = max(ans, mn - k);
			k = mx;
		}
		l += a + 1;
	}
	return max(ans, r - k);
}

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