Submission #875384

#	Time	Username	Problem	Language	Result	Execution time	Memory
875384		ZeroCool	Gap (APIO16_gap)	C++14	30 / 100	33 ms	3096 KiB

gap

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

using namespace std;

//#define int long long

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()

using ll = long long;
using ld = long double;

const int N = 1e5 + 5;
const int M = 405;
const int SQRT = 500;
const int LOG = 20;
const ll INF = 1e18;
const int MOD = 1e9+7;
const ld EPS = 1e-9;

ll findGap(int t, int n){
	ll a ,b;
	MinMax(0, INF, &a, &b);
	if(t == 1){
		if(n == 2)return b - a;

		ll l = a;
		ll r = b;
		ll ans = -INF;
		for(int i = 0;i<(n - 1) / 2;i++){
			MinMax(l+1, r-1, &a, &b);
			ans = max(ans, a - l);
			ans = max(ans, r - b);
			l = a;
			r = b;
		}

		return ans;
	}

	ll l = a + 1;
	ll r = b;
	ll p = a;
	ll f = -INF;
	ll sz = (b - a ) / N;
	f = sz;
	while (l < r) {
		int z = min(r, l + sz);
		MinMax(l, z, &a, &b);
		l = z + 1;
		f = max(f, a - p);
		if (b != -1) p = b;
	}
	return f;
}

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