Submission #1131347

#	Time	Username	Problem	Language	Result	Execution time	Memory
1131347		vako_p	Gap (APIO16_gap)	C++20	30 / 100	2095 ms	1864 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back

const int mxN = 1e5 + 5;
ll n,a[mxN];

long long findGap(int T, int N){
	n = N;
	if(T == 1 or n <= 8){
		ll l = 0,r = 1e18,mn,mx;
		for(int i = 0; i < (n + 1) / 2; i++){
			MinMax(l, r, &mn, &mx);
			a[i] = mn;
			a[n - i - 1] = mx;
			l = mn + 1;
			r = mx - 1;
		}
		ll ans = 0;
		for(int i = 0; i < n - 1; i++) ans = max(ans, a[i + 1] - a[i]);
		return ans;
	}
	ll l,r,l1,r1;
	MinMax(0, 1e18, &l, &r);
	ll dis = (r - l + n - 2) / (n - 1),ans = 1;
	for(int i = l + 1; i <= r; i += dis){
		MinMax(i, i + dis - 1, &l1, &r1);
		if(l1 == -1) continue;
		ans = max(ans, l1 - l);
		l = r1; 
	}	
	return ans;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70